diff --git a/.travis.yml b/.travis.yml
index bb704e9cd4..018bdabc2f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,3 @@
-sudo: false
-
language: go
# Whenever the Go version is updated here, .circleci/config.yml and .promu.yml
diff --git a/Makefile.common b/Makefile.common
index fff85f9226..a422e1b69a 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -36,7 +36,8 @@ GO_VERSION ?= $(shell $(GO) version)
GO_VERSION_NUMBER ?= $(word 3, $(GO_VERSION))
PRE_GO_111 ?= $(shell echo $(GO_VERSION_NUMBER) | grep -E 'go1\.(10|[0-9])\.')
-unexport GOVENDOR
+GOVENDOR :=
+GO111MODULE :=
ifeq (, $(PRE_GO_111))
ifneq (,$(wildcard go.mod))
# Enforce Go modules support just in case the directory is inside GOPATH (and for Travis CI).
@@ -57,8 +58,6 @@ $(warning Some recipes may not work as expected as the current Go runtime is '$(
# This repository isn't using Go modules (yet).
GOVENDOR := $(FIRST_GOPATH)/bin/govendor
endif
-
- unexport GO111MODULE
endif
PROMU := $(FIRST_GOPATH)/bin/promu
STATICCHECK := $(FIRST_GOPATH)/bin/staticcheck
diff --git a/RELEASE.md b/RELEASE.md
index f889424f51..cc5eb42755 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -12,8 +12,9 @@ Release cadence of first pre-releases being cut is 6 weeks.
| v2.5 | 2018-10-24 | Frederic Branczyk (GitHub: @brancz) |
| v2.6 | 2018-12-05 | Simon Pasquier (GitHub: @simonpasquier) |
| v2.7 | 2019-01-16 | Goutham Veeramachaneni (GitHub: @gouthamve) |
-| v2.8 | 2019-02-27 | **searching for volunteer** |
+| v2.8 | 2019-02-27 | Ganesh Vernekar (GitHub: @codesome) |
| v2.9 | 2019-04-10 | **searching for volunteer** |
+| v2.10 | 2019-05-22 | **searching for volunteer** |
If you are interested in volunteering please create a pull request against the [prometheus/prometheus](https://github.com/prometheus/prometheus) repository and propose yourself for the release series of your choice.
diff --git a/cmd/prometheus/main.go b/cmd/prometheus/main.go
index 045ec53777..79675ec831 100644
--- a/cmd/prometheus/main.go
+++ b/cmd/prometheus/main.go
@@ -307,7 +307,7 @@ func main() {
var (
localStorage = &tsdb.ReadyStorage{}
- remoteStorage = remote.NewStorage(log.With(logger, "component", "remote"), localStorage.StartTime, time.Duration(cfg.RemoteFlushDeadline))
+ remoteStorage = remote.NewStorage(log.With(logger, "component", "remote"), prometheus.DefaultRegisterer, localStorage.StartTime, cfg.localStoragePath, time.Duration(cfg.RemoteFlushDeadline))
fanoutStorage = storage.NewFanout(logger, localStorage, remoteStorage)
)
diff --git a/config/config.go b/config/config.go
index d12c8d651d..004d58a855 100644
--- a/config/config.go
+++ b/config/config.go
@@ -107,9 +107,10 @@ var (
MinShards: 1,
MaxSamplesPerSend: 100,
- // By default, buffer 100 batches, which at 100ms per batch is 10s. At
- // 1000 shards, this will buffer 10M samples total.
- Capacity: 100 * 100,
+ // Each shard will have a max of 10 samples pending in it's channel, plus the pending
+ // samples that have been enqueued. Theoretically we should only ever have about 110 samples
+ // per shard pending. At 1000 shards that's 110k.
+ Capacity: 10,
BatchSendDeadline: model.Duration(5 * time.Second),
// Max number of times to retry a batch on recoverable errors.
diff --git a/discovery/triton/triton.go b/discovery/triton/triton.go
index d6a92f3aff..242ac146da 100644
--- a/discovery/triton/triton.go
+++ b/discovery/triton/triton.go
@@ -215,7 +215,7 @@ func (d *Discovery) refresh() (tg *targetgroup.Group, err error) {
dr := DiscoveryResponse{}
err = json.Unmarshal(data, &dr)
if err != nil {
- return tg, fmt.Errorf("an error occurred unmarshaling the disovery response json. %s", err)
+ return tg, fmt.Errorf("an error occurred unmarshaling the discovery response json. %s", err)
}
for _, container := range dr.Containers {
diff --git a/pkg/labels/labels.go b/pkg/labels/labels.go
index a10f636d78..bfc0ce5860 100644
--- a/pkg/labels/labels.go
+++ b/pkg/labels/labels.go
@@ -81,6 +81,25 @@ func (ls *Labels) UnmarshalJSON(b []byte) error {
return nil
}
+// MatchLabels returns a subset of Labels that matches/does not match with the provided label names based on the 'on' boolean.
+// If on is set to true, it returns the subset of labels that match with the provided label names and its inverse when 'on' is set to false.
+func (ls Labels) MatchLabels(on bool, names ...string) Labels {
+ matchedLabels := Labels{}
+
+ nameSet := map[string]struct{}{}
+ for _, n := range names {
+ nameSet[n] = struct{}{}
+ }
+
+ for _, v := range ls {
+ if _, ok := nameSet[v.Name]; on == ok {
+ matchedLabels = append(matchedLabels, v)
+ }
+ }
+
+ return matchedLabels
+}
+
// Hash returns a hash value for the label set.
func (ls Labels) Hash() uint64 {
b := make([]byte, 0, 1024)
diff --git a/pkg/labels/labels_test.go b/pkg/labels/labels_test.go
new file mode 100644
index 0000000000..3651ae5f1e
--- /dev/null
+++ b/pkg/labels/labels_test.go
@@ -0,0 +1,104 @@
+// Copyright 2019 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package labels
+
+import (
+ "testing"
+)
+
+func TestLabels_MatchLabels(t *testing.T) {
+ labels := Labels{
+ {
+ Name: "__name__",
+ Value: "ALERTS",
+ },
+ {
+ Name: "alertname",
+ Value: "HTTPRequestRateLow",
+ },
+ {
+ Name: "alertstate",
+ Value: "pending",
+ },
+ {
+ Name: "instance",
+ Value: "0",
+ },
+ {
+ Name: "job",
+ Value: "app-server",
+ },
+ {
+ Name: "severity",
+ Value: "critical",
+ },
+ }
+
+ providedNames := []string{
+ "__name__",
+ "alertname",
+ "alertstate",
+ "instance",
+ }
+
+ got := labels.MatchLabels(true, providedNames...)
+ expected := Labels{
+ {
+ Name: "__name__",
+ Value: "ALERTS",
+ },
+ {
+ Name: "alertname",
+ Value: "HTTPRequestRateLow",
+ },
+ {
+ Name: "alertstate",
+ Value: "pending",
+ },
+ {
+ Name: "instance",
+ Value: "0",
+ },
+ }
+
+ assertSlice(t, got, expected)
+
+ // Now try with 'on' set to false.
+ got = labels.MatchLabels(false, providedNames...)
+
+ expected = Labels{
+ {
+ Name: "job",
+ Value: "app-server",
+ },
+ {
+ Name: "severity",
+ Value: "critical",
+ },
+ }
+
+ assertSlice(t, got, expected)
+}
+
+func assertSlice(t *testing.T, got, expected Labels) {
+ if len(expected) != len(got) {
+ t.Errorf("expected the length of matched label names to be %d, but got %d", len(expected), len(got))
+ }
+
+ for i, expectedLabel := range expected {
+ if expectedLabel.Name != got[i].Name {
+ t.Errorf("expected to get Label with name %s, but got %s instead", expectedLabel.Name, got[i].Name)
+ }
+ }
+}
diff --git a/promql/engine.go b/promql/engine.go
index f405724d3b..7450dcd389 100644
--- a/promql/engine.go
+++ b/promql/engine.go
@@ -1434,9 +1434,16 @@ func (ev *evaluator) VectorBinop(op ItemType, lhs, rhs Vector, matching *VectorM
sig := sigf(rs.Metric)
// The rhs is guaranteed to be the 'one' side. Having multiple samples
// with the same signature means that the matching is many-to-many.
- if _, found := rightSigs[sig]; found {
+ if duplSample, found := rightSigs[sig]; found {
+ // oneSide represents which side of the vector represents the 'one' in the many-to-one relationship.
+ oneSide := "right"
+ if matching.Card == CardOneToMany {
+ oneSide = "left"
+ }
+ matchedLabels := rs.Metric.MatchLabels(matching.On, matching.MatchingLabels...)
// Many-to-many matching not allowed.
- ev.errorf("many-to-many matching not allowed: matching labels must be unique on one side")
+ ev.errorf("found duplicate series for the match group %s on the %s hand-side of the operation: [%s, %s]"+
+ ";many-to-many matching not allowed: matching labels must be unique on one side", matchedLabels.String(), oneSide, rs.Metric.String(), duplSample.Metric.String())
}
rightSigs[sig] = rs
}
diff --git a/scrape/manager.go b/scrape/manager.go
index 4e38b69961..65ca1dc2b8 100644
--- a/scrape/manager.go
+++ b/scrape/manager.go
@@ -14,6 +14,7 @@
package scrape
import (
+ "fmt"
"reflect"
"sync"
"time"
@@ -104,18 +105,18 @@ func (m *Manager) reload() {
m.mtxScrape.Lock()
var wg sync.WaitGroup
for setName, groups := range m.targetSets {
- var sp *scrapePool
- existing, ok := m.scrapePools[setName]
- if !ok {
+ if _, ok := m.scrapePools[setName]; !ok {
scrapeConfig, ok := m.scrapeConfigs[setName]
if !ok {
level.Error(m.logger).Log("msg", "error reloading target set", "err", "invalid config id:"+setName)
continue
}
- sp = newScrapePool(scrapeConfig, m.append, log.With(m.logger, "scrape_pool", setName))
+ sp, err := newScrapePool(scrapeConfig, m.append, log.With(m.logger, "scrape_pool", setName))
+ if err != nil {
+ level.Error(m.logger).Log("msg", "error creating new scrape pool", "err", err, "scrape_pool", setName)
+ continue
+ }
m.scrapePools[setName] = sp
- } else {
- sp = existing
}
wg.Add(1)
@@ -123,7 +124,7 @@ func (m *Manager) reload() {
go func(sp *scrapePool, groups []*targetgroup.Group) {
sp.Sync(groups)
wg.Done()
- }(sp, groups)
+ }(m.scrapePools[setName], groups)
}
m.mtxScrape.Unlock()
@@ -158,16 +159,24 @@ func (m *Manager) ApplyConfig(cfg *config.Config) error {
}
m.scrapeConfigs = c
- // Cleanup and reload pool if config has changed.
+ // Cleanup and reload pool if the configuration has changed.
+ var failed bool
for name, sp := range m.scrapePools {
if cfg, ok := m.scrapeConfigs[name]; !ok {
sp.stop()
delete(m.scrapePools, name)
} else if !reflect.DeepEqual(sp.config, cfg) {
- sp.reload(cfg)
+ err := sp.reload(cfg)
+ if err != nil {
+ level.Error(m.logger).Log("msg", "error reloading scrape pool", "err", err, "scrape_pool", name)
+ failed = true
+ }
}
}
+ if failed {
+ return fmt.Errorf("failed to apply the new configuration")
+ }
return nil
}
diff --git a/scrape/manager_test.go b/scrape/manager_test.go
index b548ddd9c9..499d13885d 100644
--- a/scrape/manager_test.go
+++ b/scrape/manager_test.go
@@ -222,47 +222,115 @@ func TestPopulateLabels(t *testing.T) {
}
}
-// TestScrapeManagerReloadNoChange tests that no scrape reload happens when there is no config change.
-func TestManagerReloadNoChange(t *testing.T) {
- tsetName := "test"
+func loadConfiguration(t *testing.T, c string) *config.Config {
+ t.Helper()
- cfgText := `
+ cfg := &config.Config{}
+ if err := yaml.UnmarshalStrict([]byte(c), cfg); err != nil {
+ t.Fatalf("Unable to load YAML config: %s", err)
+ }
+ return cfg
+}
+
+func noopLoop() loop {
+ return &testLoop{
+ startFunc: func(interval, timeout time.Duration, errc chan<- error) {},
+ stopFunc: func() {},
+ }
+}
+
+func TestManagerApplyConfig(t *testing.T) {
+ // Valid initial configuration.
+ cfgText1 := `
scrape_configs:
- - job_name: '` + tsetName + `'
+ - job_name: job1
static_configs:
- targets: ["foo:9090"]
- - targets: ["bar:9090"]
`
- cfg := &config.Config{}
- if err := yaml.UnmarshalStrict([]byte(cfgText), cfg); err != nil {
- t.Fatalf("Unable to load YAML config cfgYaml: %s", err)
- }
+ // Invalid configuration.
+ cfgText2 := `
+scrape_configs:
+ - job_name: job1
+ scheme: https
+ static_configs:
+ - targets: ["foo:9090"]
+ tls_config:
+ ca_file: /not/existing/ca/file
+`
+ // Valid configuration.
+ cfgText3 := `
+scrape_configs:
+ - job_name: job1
+ scheme: https
+ static_configs:
+ - targets: ["foo:9090"]
+`
+ var (
+ cfg1 = loadConfiguration(t, cfgText1)
+ cfg2 = loadConfiguration(t, cfgText2)
+ cfg3 = loadConfiguration(t, cfgText3)
+
+ ch = make(chan struct{}, 1)
+ )
scrapeManager := NewManager(nil, nil)
- // Load the current config.
- scrapeManager.ApplyConfig(cfg)
-
- // As reload never happens, new loop should never be called.
newLoop := func(_ *Target, s scraper, _ int, _ bool, _ []*relabel.Config) loop {
- t.Fatal("reload happened")
- return nil
+ ch <- struct{}{}
+ return noopLoop()
}
-
sp := &scrapePool{
appendable: &nopAppendable{},
activeTargets: map[uint64]*Target{},
loops: map[uint64]loop{
- 1: &testLoop{},
+ 1: noopLoop(),
},
newLoop: newLoop,
logger: nil,
- config: cfg.ScrapeConfigs[0],
+ config: cfg1.ScrapeConfigs[0],
}
scrapeManager.scrapePools = map[string]*scrapePool{
- tsetName: sp,
+ "job1": sp,
}
- scrapeManager.ApplyConfig(cfg)
+ // Apply the initial configuration.
+ if err := scrapeManager.ApplyConfig(cfg1); err != nil {
+ t.Fatalf("unable to apply configuration: %s", err)
+ }
+ select {
+ case <-ch:
+ t.Fatal("reload happened")
+ default:
+ }
+
+ // Apply a configuration for which the reload fails.
+ if err := scrapeManager.ApplyConfig(cfg2); err == nil {
+ t.Fatalf("expecting error but got none")
+ }
+ select {
+ case <-ch:
+ t.Fatal("reload happened")
+ default:
+ }
+
+ // Apply a configuration for which the reload succeeds.
+ if err := scrapeManager.ApplyConfig(cfg3); err != nil {
+ t.Fatalf("unable to apply configuration: %s", err)
+ }
+ select {
+ case <-ch:
+ default:
+ t.Fatal("reload didn't happen")
+ }
+
+ // Re-applying the same configuration shouldn't trigger a reload.
+ if err := scrapeManager.ApplyConfig(cfg3); err != nil {
+ t.Fatalf("unable to apply configuration: %s", err)
+ }
+ select {
+ case <-ch:
+ t.Fatal("reload happened")
+ default:
+ }
}
func TestManagerTargetsUpdates(t *testing.T) {
diff --git a/scrape/scrape.go b/scrape/scrape.go
index 29553aea20..d21bc04bcc 100644
--- a/scrape/scrape.go
+++ b/scrape/scrape.go
@@ -28,6 +28,7 @@ import (
"github.com/go-kit/kit/log"
"github.com/go-kit/kit/log/level"
+ "github.com/pkg/errors"
"github.com/prometheus/client_golang/prometheus"
config_util "github.com/prometheus/common/config"
"github.com/prometheus/common/model"
@@ -61,6 +62,30 @@ var (
},
[]string{"interval"},
)
+ targetScrapePools = prometheus.NewCounter(
+ prometheus.CounterOpts{
+ Name: "prometheus_target_scrape_pools_total",
+ Help: "Total number of scrape pool creation atttempts.",
+ },
+ )
+ targetScrapePoolsFailed = prometheus.NewCounter(
+ prometheus.CounterOpts{
+ Name: "prometheus_target_scrape_pools_failed_total",
+ Help: "Total number of scrape pool creations that failed.",
+ },
+ )
+ targetScrapePoolReloads = prometheus.NewCounter(
+ prometheus.CounterOpts{
+ Name: "prometheus_target_scrape_pool_reloads_total",
+ Help: "Total number of scrape loop reloads.",
+ },
+ )
+ targetScrapePoolReloadsFailed = prometheus.NewCounter(
+ prometheus.CounterOpts{
+ Name: "prometheus_target_scrape_pool_reloads_failed_total",
+ Help: "Total number of failed scrape loop reloads.",
+ },
+ )
targetSyncIntervalLength = prometheus.NewSummaryVec(
prometheus.SummaryOpts{
Name: "prometheus_target_sync_length_seconds",
@@ -105,6 +130,10 @@ var (
func init() {
prometheus.MustRegister(targetIntervalLength)
prometheus.MustRegister(targetReloadIntervalLength)
+ prometheus.MustRegister(targetScrapePools)
+ prometheus.MustRegister(targetScrapePoolsFailed)
+ prometheus.MustRegister(targetScrapePoolReloads)
+ prometheus.MustRegister(targetScrapePoolReloadsFailed)
prometheus.MustRegister(targetSyncIntervalLength)
prometheus.MustRegister(targetScrapePoolSyncsCounter)
prometheus.MustRegister(targetScrapeSampleLimit)
@@ -136,15 +165,16 @@ const maxAheadTime = 10 * time.Minute
type labelsMutator func(labels.Labels) labels.Labels
-func newScrapePool(cfg *config.ScrapeConfig, app Appendable, logger log.Logger) *scrapePool {
+func newScrapePool(cfg *config.ScrapeConfig, app Appendable, logger log.Logger) (*scrapePool, error) {
+ targetScrapePools.Inc()
if logger == nil {
logger = log.NewNopLogger()
}
client, err := config_util.NewClientFromConfig(cfg.HTTPClientConfig, cfg.JobName)
if err != nil {
- // Any errors that could occur here should be caught during config validation.
- level.Error(logger).Log("msg", "Error creating HTTP client", "err", err)
+ targetScrapePoolsFailed.Inc()
+ return nil, errors.Wrap(err, "error creating HTTP client")
}
buffers := pool.New(1e3, 100e6, 3, func(sz int) interface{} { return make([]byte, 0, sz) })
@@ -182,7 +212,7 @@ func newScrapePool(cfg *config.ScrapeConfig, app Appendable, logger log.Logger)
)
}
- return sp
+ return sp, nil
}
func (sp *scrapePool) ActiveTargets() []*Target {
@@ -227,7 +257,8 @@ func (sp *scrapePool) stop() {
// reload the scrape pool with the given scrape configuration. The target state is preserved
// but all scrape loops are restarted with the new scrape configuration.
// This method returns after all scrape loops that were stopped have stopped scraping.
-func (sp *scrapePool) reload(cfg *config.ScrapeConfig) {
+func (sp *scrapePool) reload(cfg *config.ScrapeConfig) error {
+ targetScrapePoolReloads.Inc()
start := time.Now()
sp.mtx.Lock()
@@ -235,8 +266,8 @@ func (sp *scrapePool) reload(cfg *config.ScrapeConfig) {
client, err := config_util.NewClientFromConfig(cfg.HTTPClientConfig, cfg.JobName)
if err != nil {
- // Any errors that could occur here should be caught during config validation.
- level.Error(sp.logger).Log("msg", "Error creating HTTP client", "err", err)
+ targetScrapePoolReloadsFailed.Inc()
+ return errors.Wrap(err, "error creating HTTP client")
}
sp.config = cfg
sp.client = client
@@ -272,6 +303,7 @@ func (sp *scrapePool) reload(cfg *config.ScrapeConfig) {
targetReloadIntervalLength.WithLabelValues(interval.String()).Observe(
time.Since(start).Seconds(),
)
+ return nil
}
// Sync converts target groups into actual scrape targets and synchronizes
diff --git a/scrape/scrape_test.go b/scrape/scrape_test.go
index a27ccb0aa2..c301fdbb77 100644
--- a/scrape/scrape_test.go
+++ b/scrape/scrape_test.go
@@ -29,16 +29,14 @@ import (
"testing"
"time"
- "github.com/prometheus/prometheus/pkg/relabel"
-
+ dto "github.com/prometheus/client_model/go"
"github.com/prometheus/common/model"
"github.com/stretchr/testify/require"
- dto "github.com/prometheus/client_model/go"
-
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/discovery/targetgroup"
"github.com/prometheus/prometheus/pkg/labels"
+ "github.com/prometheus/prometheus/pkg/relabel"
"github.com/prometheus/prometheus/pkg/textparse"
"github.com/prometheus/prometheus/pkg/timestamp"
"github.com/prometheus/prometheus/pkg/value"
@@ -48,9 +46,9 @@ import (
func TestNewScrapePool(t *testing.T) {
var (
- app = &nopAppendable{}
- cfg = &config.ScrapeConfig{}
- sp = newScrapePool(cfg, app, nil)
+ app = &nopAppendable{}
+ cfg = &config.ScrapeConfig{}
+ sp, _ = newScrapePool(cfg, app, nil)
)
if a, ok := sp.appendable.(*nopAppendable); !ok || a != app {
@@ -85,7 +83,7 @@ func TestDroppedTargetsList(t *testing.T) {
},
},
}
- sp = newScrapePool(cfg, app, nil)
+ sp, _ = newScrapePool(cfg, app, nil)
expectedLabelSetString = "{__address__=\"127.0.0.1:9090\", __metrics_path__=\"\", __scheme__=\"\", job=\"dropMe\"}"
expectedLength = 1
)
@@ -307,7 +305,7 @@ func TestScrapePoolReload(t *testing.T) {
func TestScrapePoolAppender(t *testing.T) {
cfg := &config.ScrapeConfig{}
app := &nopAppendable{}
- sp := newScrapePool(cfg, app, nil)
+ sp, _ := newScrapePool(cfg, app, nil)
loop := sp.newLoop(&Target{}, nil, 0, false, nil)
appl, ok := loop.(*scrapeLoop)
@@ -350,7 +348,7 @@ func TestScrapePoolRaces(t *testing.T) {
newConfig := func() *config.ScrapeConfig {
return &config.ScrapeConfig{ScrapeInterval: interval, ScrapeTimeout: timeout}
}
- sp := newScrapePool(newConfig(), &nopAppendable{}, nil)
+ sp, _ := newScrapePool(newConfig(), &nopAppendable{}, nil)
tgts := []*targetgroup.Group{
{
Targets: []model.LabelSet{
@@ -880,7 +878,7 @@ func TestScrapeLoopAppendSampleLimit(t *testing.T) {
t.Fatalf("Did not see expected sample limit error: %s", err)
}
- // Check that the Counter has been incremented a simgle time for the scrape,
+ // Check that the Counter has been incremented a single time for the scrape,
// not multiple times for each sample.
metric := dto.Metric{}
err = targetScrapeSampleLimit.Write(&metric)
diff --git a/storage/remote/client.go b/storage/remote/client.go
index 2679f42b6b..b182cda614 100644
--- a/storage/remote/client.go
+++ b/storage/remote/client.go
@@ -70,15 +70,10 @@ type recoverableError struct {
error
}
-// Store sends a batch of samples to the HTTP endpoint.
-func (c *Client) Store(ctx context.Context, req *prompb.WriteRequest) error {
- data, err := proto.Marshal(req)
- if err != nil {
- return err
- }
-
- compressed := snappy.Encode(nil, data)
- httpReq, err := http.NewRequest("POST", c.url.String(), bytes.NewReader(compressed))
+// Store sends a batch of samples to the HTTP endpoint, the request is the proto marshalled
+// and encoded bytes from codec.go.
+func (c *Client) Store(ctx context.Context, req []byte) error {
+ httpReq, err := http.NewRequest("POST", c.url.String(), bytes.NewReader(req))
if err != nil {
// Errors from NewRequest are from unparseable URLs, so are not
// recoverable.
diff --git a/storage/remote/client_test.go b/storage/remote/client_test.go
index 73ec875a5d..9ef3c9bd26 100644
--- a/storage/remote/client_test.go
+++ b/storage/remote/client_test.go
@@ -26,7 +26,6 @@ import (
config_util "github.com/prometheus/common/config"
"github.com/prometheus/common/model"
- "github.com/prometheus/prometheus/prompb"
)
var longErrMessage = strings.Repeat("error message", maxErrMsgLen)
@@ -74,7 +73,7 @@ func TestStoreHTTPErrorHandling(t *testing.T) {
t.Fatal(err)
}
- err = c.Store(context.Background(), &prompb.WriteRequest{})
+ err = c.Store(context.Background(), []byte{})
if !reflect.DeepEqual(err, test.err) {
t.Errorf("%d. Unexpected error; want %v, got %v", i, test.err, err)
}
diff --git a/storage/remote/codec.go b/storage/remote/codec.go
index 6f49bfbbaa..82dd4126e4 100644
--- a/storage/remote/codec.go
+++ b/storage/remote/codec.go
@@ -80,28 +80,6 @@ func EncodeReadResponse(resp *prompb.ReadResponse, w http.ResponseWriter) error
return err
}
-// ToWriteRequest converts an array of samples into a WriteRequest proto.
-func ToWriteRequest(samples []*model.Sample) *prompb.WriteRequest {
- req := &prompb.WriteRequest{
- Timeseries: make([]prompb.TimeSeries, 0, len(samples)),
- }
-
- for _, s := range samples {
- ts := prompb.TimeSeries{
- Labels: MetricToLabelProtos(s.Metric),
- Samples: []prompb.Sample{
- {
- Value: float64(s.Value),
- Timestamp: int64(s.Timestamp),
- },
- },
- }
- req.Timeseries = append(req.Timeseries, ts)
- }
-
- return req
-}
-
// ToQuery builds a Query proto.
func ToQuery(from, to int64, matchers []*labels.Matcher, p *storage.SelectParams) (*prompb.Query, error) {
ms, err := toLabelMatchers(matchers)
@@ -364,21 +342,6 @@ func fromLabelMatchers(matchers []*prompb.LabelMatcher) ([]*labels.Matcher, erro
return result, nil
}
-// MetricToLabelProtos builds a []*prompb.Label from a model.Metric
-func MetricToLabelProtos(metric model.Metric) []prompb.Label {
- labels := make([]prompb.Label, 0, len(metric))
- for k, v := range metric {
- labels = append(labels, prompb.Label{
- Name: string(k),
- Value: string(v),
- })
- }
- sort.Slice(labels, func(i int, j int) bool {
- return labels[i].Name < labels[j].Name
- })
- return labels
-}
-
// LabelProtosToMetric unpack a []*prompb.Label to a model.Metric
func LabelProtosToMetric(labelPairs []*prompb.Label) model.Metric {
metric := make(model.Metric, len(labelPairs))
@@ -400,6 +363,26 @@ func labelProtosToLabels(labelPairs []prompb.Label) labels.Labels {
return result
}
+func labelsetToLabelsProto(ls model.LabelSet) []prompb.Label {
+ result := make([]prompb.Label, 0, len(ls))
+ keys := make([]string, 0, len(ls))
+
+ for k := range ls {
+ keys = append(keys, string(k))
+ }
+ sort.Strings(keys)
+
+ for _, k := range keys {
+ ln := model.LabelName(k)
+ result = append(result, prompb.Label{
+ Name: k,
+ Value: string(ls[ln]),
+ })
+ }
+
+ return result
+}
+
func labelsToLabelsProto(labels labels.Labels) []prompb.Label {
result := make([]prompb.Label, 0, len(labels))
for _, l := range labels {
@@ -410,11 +393,3 @@ func labelsToLabelsProto(labels labels.Labels) []prompb.Label {
}
return result
}
-
-func labelsToMetric(ls labels.Labels) model.Metric {
- metric := make(model.Metric, len(ls))
- for _, l := range ls {
- metric[model.LabelName(l.Name)] = model.LabelValue(l.Value)
- }
- return metric
-}
diff --git a/storage/remote/queue_manager.go b/storage/remote/queue_manager.go
index e76912e1b9..e91c6e86de 100644
--- a/storage/remote/queue_manager.go
+++ b/storage/remote/queue_manager.go
@@ -16,6 +16,7 @@ package remote
import (
"context"
"math"
+ "strconv"
"sync"
"sync/atomic"
"time"
@@ -24,12 +25,16 @@ import (
"github.com/go-kit/kit/log"
"github.com/go-kit/kit/log/level"
+ "github.com/gogo/protobuf/proto"
+ "github.com/golang/snappy"
+
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
pkgrelabel "github.com/prometheus/prometheus/pkg/relabel"
"github.com/prometheus/prometheus/prompb"
"github.com/prometheus/prometheus/relabel"
+ "github.com/prometheus/tsdb"
)
// String constants for instrumentation.
@@ -66,7 +71,16 @@ var (
Namespace: namespace,
Subsystem: subsystem,
Name: "failed_samples_total",
- Help: "Total number of samples which failed on send to remote storage.",
+ Help: "Total number of samples which failed on send to remote storage, non-recoverable errors.",
+ },
+ []string{queue},
+ )
+ retriedSamplesTotal = prometheus.NewCounterVec(
+ prometheus.CounterOpts{
+ Namespace: namespace,
+ Subsystem: subsystem,
+ Name: "retried_samples_total",
+ Help: "Total number of samples which failed on send to remote storage but were retried because the send error was recoverable.",
},
[]string{queue},
)
@@ -75,7 +89,16 @@ var (
Namespace: namespace,
Subsystem: subsystem,
Name: "dropped_samples_total",
- Help: "Total number of samples which were dropped due to the queue being full.",
+ Help: "Total number of samples which were dropped after being read from the WAL before being sent via remote write.",
+ },
+ []string{queue},
+ )
+ enqueueRetriesTotal = prometheus.NewCounterVec(
+ prometheus.CounterOpts{
+ Namespace: namespace,
+ Subsystem: subsystem,
+ Name: "enqueue_retries_total",
+ Help: "Total number of times enqueue has failed because a shards queue was full.",
},
[]string{queue},
)
@@ -89,12 +112,30 @@ var (
},
[]string{queue},
)
- queueLength = prometheus.NewGaugeVec(
+ queueLastSendTimestamp = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: namespace,
Subsystem: subsystem,
- Name: "queue_length",
- Help: "The number of processed samples queued to be sent to the remote storage.",
+ Name: "queue_last_send_timestamp",
+ Help: "Timestamp of the last successful send by this queue.",
+ },
+ []string{queue},
+ )
+ queueHighestSentTimestamp = prometheus.NewGaugeVec(
+ prometheus.GaugeOpts{
+ Namespace: namespace,
+ Subsystem: subsystem,
+ Name: "queue_highest_sent_timestamp",
+ Help: "Timestamp from a WAL sample, the highest timestamp successfully sent by this queue.",
+ },
+ []string{queue},
+ )
+ queuePendingSamples = prometheus.NewGaugeVec(
+ prometheus.GaugeOpts{
+ Namespace: namespace,
+ Subsystem: subsystem,
+ Name: "pending_samples",
+ Help: "The number of samples pending in the queues shards to be sent to the remote storage.",
},
[]string{queue},
)
@@ -121,9 +162,13 @@ var (
func init() {
prometheus.MustRegister(succeededSamplesTotal)
prometheus.MustRegister(failedSamplesTotal)
+ prometheus.MustRegister(retriedSamplesTotal)
prometheus.MustRegister(droppedSamplesTotal)
+ prometheus.MustRegister(enqueueRetriesTotal)
prometheus.MustRegister(sentBatchDuration)
- prometheus.MustRegister(queueLength)
+ prometheus.MustRegister(queueLastSendTimestamp)
+ prometheus.MustRegister(queueHighestSentTimestamp)
+ prometheus.MustRegister(queuePendingSamples)
prometheus.MustRegister(shardCapacity)
prometheus.MustRegister(numShards)
}
@@ -132,25 +177,41 @@ func init() {
// external timeseries database.
type StorageClient interface {
// Store stores the given samples in the remote storage.
- Store(context.Context, *prompb.WriteRequest) error
+ Store(context.Context, []byte) error
// Name identifies the remote storage implementation.
Name() string
}
// QueueManager manages a queue of samples to be sent to the Storage
-// indicated by the provided StorageClient.
+// indicated by the provided StorageClient. Implements writeTo interface
+// used by WAL Watcher.
type QueueManager struct {
logger log.Logger
- flushDeadline time.Duration
- cfg config.QueueConfig
- externalLabels model.LabelSet
- relabelConfigs []*pkgrelabel.Config
- client StorageClient
- queueName string
- logLimiter *rate.Limiter
+ flushDeadline time.Duration
+ cfg config.QueueConfig
+ externalLabels model.LabelSet
+ relabelConfigs []*pkgrelabel.Config
+ client StorageClient
+ queueName string
+ logLimiter *rate.Limiter
+ watcher *WALWatcher
+ lastSendTimestampMetric prometheus.Gauge
+ highestSentTimestampMetric prometheus.Gauge
+ pendingSamplesMetric prometheus.Gauge
+ enqueueRetriesMetric prometheus.Counter
+
+ lastSendTimestamp int64
+ highestSentTimestamp int64
+ timestampLock sync.Mutex
+
+ highestTimestampIn *int64 // highest timestamp of any sample ingested by remote storage via scrape (Appender)
+
+ seriesMtx sync.Mutex
+ seriesLabels map[uint64][]prompb.Label
+ seriesSegmentIndexes map[uint64]int
+ droppedSeries map[uint64]struct{}
- shardsMtx sync.RWMutex
shards *shards
numShards int
reshardChan chan int
@@ -162,7 +223,7 @@ type QueueManager struct {
}
// NewQueueManager builds a new QueueManager.
-func NewQueueManager(logger log.Logger, cfg config.QueueConfig, externalLabels model.LabelSet, relabelConfigs []*pkgrelabel.Config, client StorageClient, flushDeadline time.Duration) *QueueManager {
+func NewQueueManager(logger log.Logger, walDir string, samplesIn *ewmaRate, highestTimestampIn *int64, cfg config.QueueConfig, externalLabels model.LabelSet, relabelConfigs []*pkgrelabel.Config, client StorageClient, flushDeadline time.Duration, startTime int64) *QueueManager {
if logger == nil {
logger = log.NewNopLogger()
} else {
@@ -177,16 +238,29 @@ func NewQueueManager(logger log.Logger, cfg config.QueueConfig, externalLabels m
client: client,
queueName: client.Name(),
+ highestTimestampIn: highestTimestampIn,
+
+ seriesLabels: make(map[uint64][]prompb.Label),
+ seriesSegmentIndexes: make(map[uint64]int),
+ droppedSeries: make(map[uint64]struct{}),
+
logLimiter: rate.NewLimiter(logRateLimit, logBurst),
numShards: cfg.MinShards,
reshardChan: make(chan int),
quit: make(chan struct{}),
- samplesIn: newEWMARate(ewmaWeight, shardUpdateDuration),
+ samplesIn: samplesIn,
samplesOut: newEWMARate(ewmaWeight, shardUpdateDuration),
samplesOutDuration: newEWMARate(ewmaWeight, shardUpdateDuration),
}
- t.shards = t.newShards(t.numShards)
+
+ t.lastSendTimestampMetric = queueLastSendTimestamp.WithLabelValues(t.queueName)
+ t.highestSentTimestampMetric = queueHighestSentTimestamp.WithLabelValues(t.queueName)
+ t.pendingSamplesMetric = queuePendingSamples.WithLabelValues(t.queueName)
+ t.enqueueRetriesMetric = enqueueRetriesTotal.WithLabelValues(t.queueName)
+ t.watcher = NewWALWatcher(logger, client.Name(), t, walDir, startTime)
+ t.shards = t.newShards()
+
numShards.WithLabelValues(t.queueName).Set(float64(t.numShards))
shardCapacity.WithLabelValues(t.queueName).Set(float64(t.cfg.Capacity))
@@ -195,76 +269,144 @@ func NewQueueManager(logger log.Logger, cfg config.QueueConfig, externalLabels m
succeededSamplesTotal.WithLabelValues(t.queueName)
failedSamplesTotal.WithLabelValues(t.queueName)
droppedSamplesTotal.WithLabelValues(t.queueName)
+ retriedSamplesTotal.WithLabelValues(t.queueName)
+ // Reset pending samples metric to 0.
+ t.pendingSamplesMetric.Set(0)
return t
}
-// Append queues a sample to be sent to the remote storage. It drops the
-// sample on the floor if the queue is full.
-// Always returns nil.
-func (t *QueueManager) Append(s *model.Sample) error {
- snew := *s
- snew.Metric = s.Metric.Clone()
+// Append queues a sample to be sent to the remote storage. Blocks until all samples are
+// enqueued on their shards or a shutdown signal is received.
+func (t *QueueManager) Append(s []tsdb.RefSample) bool {
+ type enqueuable struct {
+ ts prompb.TimeSeries
+ ref uint64
+ }
- for ln, lv := range t.externalLabels {
- if _, ok := s.Metric[ln]; !ok {
- snew.Metric[ln] = lv
+ tempSamples := make([]enqueuable, 0, len(s))
+ t.seriesMtx.Lock()
+ for _, sample := range s {
+ // If we have no labels for the series, due to relabelling or otherwise, don't send the sample.
+ if _, ok := t.seriesLabels[sample.Ref]; !ok {
+ droppedSamplesTotal.WithLabelValues(t.queueName).Inc()
+ if _, ok := t.droppedSeries[sample.Ref]; !ok && t.logLimiter.Allow() {
+ level.Info(t.logger).Log("msg", "dropped sample for series that was not explicitly dropped via relabelling", "ref", sample.Ref)
+ }
+ continue
+ }
+ tempSamples = append(tempSamples, enqueuable{
+ ts: prompb.TimeSeries{
+ Labels: t.seriesLabels[sample.Ref],
+ Samples: []prompb.Sample{
+ prompb.Sample{
+ Value: float64(sample.V),
+ Timestamp: sample.T,
+ },
+ },
+ },
+ ref: sample.Ref,
+ })
+ }
+ t.seriesMtx.Unlock()
+
+outer:
+ for _, sample := range tempSamples {
+ // This will only loop if the queues are being resharded.
+ backoff := t.cfg.MinBackoff
+ for {
+ select {
+ case <-t.quit:
+ return false
+ default:
+ }
+
+ if t.shards.enqueue(sample.ref, sample.ts) {
+ continue outer
+ }
+
+ t.enqueueRetriesMetric.Inc()
+ time.Sleep(time.Duration(backoff))
+ backoff = backoff * 2
+ if backoff > t.cfg.MaxBackoff {
+ backoff = t.cfg.MaxBackoff
+ }
}
}
-
- snew.Metric = model.Metric(
- relabel.Process(model.LabelSet(snew.Metric), t.relabelConfigs...))
-
- if snew.Metric == nil {
- return nil
- }
-
- t.shardsMtx.RLock()
- enqueued := t.shards.enqueue(&snew)
- t.shardsMtx.RUnlock()
-
- if enqueued {
- queueLength.WithLabelValues(t.queueName).Inc()
- } else {
- droppedSamplesTotal.WithLabelValues(t.queueName).Inc()
- if t.logLimiter.Allow() {
- level.Warn(t.logger).Log("msg", "Remote storage queue full, discarding sample. Multiple subsequent messages of this kind may be suppressed.")
- }
- }
- return nil
-}
-
-// NeedsThrottling implements storage.SampleAppender. It will always return
-// false as a remote storage drops samples on the floor if backlogging instead
-// of asking for throttling.
-func (*QueueManager) NeedsThrottling() bool {
- return false
+ return true
}
// Start the queue manager sending samples to the remote storage.
// Does not block.
func (t *QueueManager) Start() {
+ t.shards.start(t.numShards)
+ t.watcher.Start()
+
t.wg.Add(2)
go t.updateShardsLoop()
go t.reshardLoop()
-
- t.shardsMtx.Lock()
- defer t.shardsMtx.Unlock()
- t.shards.start()
}
// Stop stops sending samples to the remote storage and waits for pending
// sends to complete.
func (t *QueueManager) Stop() {
level.Info(t.logger).Log("msg", "Stopping remote storage...")
+ defer level.Info(t.logger).Log("msg", "Remote storage stopped.")
+
close(t.quit)
+ t.shards.stop()
+ t.watcher.Stop()
t.wg.Wait()
+}
- t.shardsMtx.Lock()
- defer t.shardsMtx.Unlock()
- t.shards.stop(t.flushDeadline)
+// StoreSeries keeps track of which series we know about for lookups when sending samples to remote.
+func (t *QueueManager) StoreSeries(series []tsdb.RefSeries, index int) {
+ temp := make(map[uint64][]prompb.Label, len(series))
+ for _, s := range series {
+ ls := make(model.LabelSet, len(s.Labels))
+ for _, label := range s.Labels {
+ ls[model.LabelName(label.Name)] = model.LabelValue(label.Value)
+ }
+ t.processExternalLabels(ls)
+ rl := relabel.Process(ls, t.relabelConfigs...)
+ if len(rl) == 0 {
+ t.droppedSeries[s.Ref] = struct{}{}
+ continue
+ }
+ temp[s.Ref] = labelsetToLabelsProto(rl)
+ }
- level.Info(t.logger).Log("msg", "Remote storage stopped.")
+ t.seriesMtx.Lock()
+ defer t.seriesMtx.Unlock()
+ for ref, labels := range temp {
+ t.seriesLabels[ref] = labels
+ t.seriesSegmentIndexes[ref] = index
+ }
+}
+
+// SeriesReset is used when reading a checkpoint. WAL Watcher should have
+// stored series records with the checkpoints index number, so we can now
+// delete any ref ID's lower than that # from the two maps.
+func (t *QueueManager) SeriesReset(index int) {
+ t.seriesMtx.Lock()
+ defer t.seriesMtx.Unlock()
+
+ // Check for series that are in segments older than the checkpoint
+ // that were not also present in the checkpoint.
+ for k, v := range t.seriesSegmentIndexes {
+ if v < index {
+ delete(t.seriesLabels, k)
+ delete(t.seriesSegmentIndexes, k)
+ }
+ }
+}
+
+func (t *QueueManager) processExternalLabels(ls model.LabelSet) {
+ for ln, lv := range t.externalLabels {
+ if _, ok := ls[ln]; !ok {
+ ls[ln] = lv
+ }
+ }
}
func (t *QueueManager) updateShardsLoop() {
@@ -275,6 +417,12 @@ func (t *QueueManager) updateShardsLoop() {
for {
select {
case <-ticker.C:
+ now := time.Now().Unix()
+ threshold := int64(time.Duration(2 * t.cfg.BatchSendDeadline).Seconds())
+ if now-t.lastSendTimestamp > threshold {
+ level.Debug(t.logger).Log("msg", "Skipping resharding, last successful send was beyond threshold")
+ continue
+ }
t.calculateDesiredShards()
case <-t.quit:
return
@@ -351,107 +499,150 @@ func (t *QueueManager) reshardLoop() {
for {
select {
case numShards := <-t.reshardChan:
- t.reshard(numShards)
+ // We start the newShards after we have stopped (the therefore completely
+ // flushed) the oldShards, to guarantee we only every deliver samples in
+ // order.
+ t.shards.stop()
+ t.shards.start(numShards)
case <-t.quit:
return
}
}
}
-func (t *QueueManager) reshard(n int) {
- numShards.WithLabelValues(t.queueName).Set(float64(n))
-
- t.shardsMtx.Lock()
- newShards := t.newShards(n)
- oldShards := t.shards
- t.shards = newShards
- t.shardsMtx.Unlock()
-
- oldShards.stop(t.flushDeadline)
-
- // We start the newShards after we have stopped (the therefore completely
- // flushed) the oldShards, to guarantee we only every deliver samples in
- // order.
- newShards.start()
-}
-
-type shards struct {
- qm *QueueManager
- queues []chan *model.Sample
- done chan struct{}
- running int32
- ctx context.Context
- cancel context.CancelFunc
-}
-
-func (t *QueueManager) newShards(numShards int) *shards {
- queues := make([]chan *model.Sample, numShards)
- for i := 0; i < numShards; i++ {
- queues[i] = make(chan *model.Sample, t.cfg.Capacity)
- }
- ctx, cancel := context.WithCancel(context.Background())
+func (t *QueueManager) newShards() *shards {
s := &shards{
- qm: t,
- queues: queues,
- done: make(chan struct{}),
- running: int32(numShards),
- ctx: ctx,
- cancel: cancel,
+ qm: t,
+ done: make(chan struct{}),
}
return s
}
-func (s *shards) start() {
- for i := 0; i < len(s.queues); i++ {
- go s.runShard(i)
+// Check and set highestSentTimestamp
+func (t *QueueManager) setHighestSentTimestamp(highest int64) {
+ t.timestampLock.Lock()
+ defer t.timestampLock.Unlock()
+ if highest > t.highestSentTimestamp {
+ t.highestSentTimestamp = highest
+ t.highestSentTimestampMetric.Set(float64(t.highestSentTimestamp))
}
}
-func (s *shards) stop(deadline time.Duration) {
- // Attempt a clean shutdown.
- for _, shard := range s.queues {
- close(shard)
+func (t *QueueManager) setLastSendTimestamp(now time.Time) {
+ t.timestampLock.Lock()
+ defer t.timestampLock.Unlock()
+ t.lastSendTimestampMetric.Set(float64(now.UnixNano()) / 1e9)
+ t.lastSendTimestamp = now.Unix()
+}
+
+type shards struct {
+ mtx sync.RWMutex // With the WAL, this is never actually contended.
+
+ qm *QueueManager
+ queues []chan prompb.TimeSeries
+
+ // Emulate a wait group with a channel and an atomic int, as you
+ // cannot select on a wait group.
+ done chan struct{}
+ running int32
+
+ // Soft shutdown context will prevent new enqueues and deadlocks.
+ softShutdown chan struct{}
+
+ // Hard shutdown context is used to terminate outgoing HTTP connections
+ // after giving them a chance to terminate.
+ hardShutdown context.CancelFunc
+}
+
+// start the shards; must be called before any call to enqueue.
+func (s *shards) start(n int) {
+ s.mtx.Lock()
+ defer s.mtx.Unlock()
+
+ newQueues := make([]chan prompb.TimeSeries, n)
+ for i := 0; i < n; i++ {
+ newQueues[i] = make(chan prompb.TimeSeries, s.qm.cfg.Capacity)
+ }
+
+ s.queues = newQueues
+
+ var hardShutdownCtx context.Context
+ hardShutdownCtx, s.hardShutdown = context.WithCancel(context.Background())
+ s.softShutdown = make(chan struct{})
+ s.running = int32(n)
+ s.done = make(chan struct{})
+ for i := 0; i < n; i++ {
+ go s.runShard(hardShutdownCtx, i, newQueues[i])
+ }
+ numShards.WithLabelValues(s.qm.queueName).Set(float64(n))
+}
+
+// stop the shards; subsequent call to enqueue will return false.
+func (s *shards) stop() {
+ // Attempt a clean shutdown, but only wait flushDeadline for all the shards
+ // to cleanly exit. As we're doing RPCs, enqueue can block indefinately.
+ // We must be able so call stop concurrently, hence we can only take the
+ // RLock here.
+ s.mtx.RLock()
+ close(s.softShutdown)
+ s.mtx.RUnlock()
+
+ // Enqueue should now be unblocked, so we can take the write lock. This
+ // also ensures we don't race with writes to the queues, and get a panic:
+ // send on closed channel.
+ s.mtx.Lock()
+ defer s.mtx.Unlock()
+ for _, queue := range s.queues {
+ close(queue)
}
select {
case <-s.done:
return
- case <-time.After(deadline):
+ case <-time.After(s.qm.flushDeadline):
level.Error(s.qm.logger).Log("msg", "Failed to flush all samples on shutdown")
}
// Force an unclean shutdown.
- s.cancel()
+ s.hardShutdown()
<-s.done
}
-func (s *shards) enqueue(sample *model.Sample) bool {
- s.qm.samplesIn.incr(1)
-
- fp := sample.Metric.FastFingerprint()
- shard := uint64(fp) % uint64(len(s.queues))
+// enqueue a sample. If we are currently in the process of shutting down or resharding,
+// will return false; in this case, you should back off and retry.
+func (s *shards) enqueue(ref uint64, sample prompb.TimeSeries) bool {
+ s.mtx.RLock()
+ defer s.mtx.RUnlock()
select {
+ case <-s.softShutdown:
+ return false
+ default:
+ }
+
+ shard := uint64(ref) % uint64(len(s.queues))
+ select {
+ case <-s.softShutdown:
+ return false
case s.queues[shard] <- sample:
return true
- default:
- return false
}
}
-func (s *shards) runShard(i int) {
+func (s *shards) runShard(ctx context.Context, i int, queue chan prompb.TimeSeries) {
defer func() {
if atomic.AddInt32(&s.running, -1) == 0 {
close(s.done)
}
}()
- queue := s.queues[i]
+ shardNum := strconv.Itoa(i)
// Send batches of at most MaxSamplesPerSend samples to the remote storage.
// If we have fewer samples than that, flush them out after a deadline
// anyways.
- pendingSamples := model.Samples{}
+ pendingSamples := []prompb.TimeSeries{}
+ max := s.qm.cfg.MaxSamplesPerSend
timer := time.NewTimer(time.Duration(s.qm.cfg.BatchSendDeadline))
stop := func() {
if !timer.Stop() {
@@ -465,25 +656,29 @@ func (s *shards) runShard(i int) {
for {
select {
- case <-s.ctx.Done():
+ case <-ctx.Done():
return
case sample, ok := <-queue:
if !ok {
if len(pendingSamples) > 0 {
level.Debug(s.qm.logger).Log("msg", "Flushing samples to remote storage...", "count", len(pendingSamples))
- s.sendSamples(pendingSamples)
+ s.sendSamples(ctx, pendingSamples)
level.Debug(s.qm.logger).Log("msg", "Done flushing.")
}
return
}
- queueLength.WithLabelValues(s.qm.queueName).Dec()
+ // Number of pending samples is limited by the fact that sendSamples (via sendSamplesWithBackoff)
+ // retries endlessly, so once we reach > 100 samples, if we can never send to the endpoint we'll
+ // stop reading from the queue (which has a size of 10).
pendingSamples = append(pendingSamples, sample)
+ s.qm.pendingSamplesMetric.Inc()
- if len(pendingSamples) >= s.qm.cfg.MaxSamplesPerSend {
- s.sendSamples(pendingSamples[:s.qm.cfg.MaxSamplesPerSend])
- pendingSamples = pendingSamples[s.qm.cfg.MaxSamplesPerSend:]
+ if len(pendingSamples) >= max {
+ s.sendSamples(ctx, pendingSamples[:max])
+ pendingSamples = pendingSamples[max:]
+ s.qm.pendingSamplesMetric.Sub(float64(max))
stop()
timer.Reset(time.Duration(s.qm.cfg.BatchSendDeadline))
@@ -491,17 +686,24 @@ func (s *shards) runShard(i int) {
case <-timer.C:
if len(pendingSamples) > 0 {
- s.sendSamples(pendingSamples)
+ level.Debug(s.qm.logger).Log("msg", "runShard timer ticked, sending samples", "samples", len(pendingSamples), "shard", shardNum)
+ n := len(pendingSamples)
+ s.sendSamples(ctx, pendingSamples)
pendingSamples = pendingSamples[:0]
+ s.qm.pendingSamplesMetric.Sub(float64(n))
}
timer.Reset(time.Duration(s.qm.cfg.BatchSendDeadline))
}
}
}
-func (s *shards) sendSamples(samples model.Samples) {
+func (s *shards) sendSamples(ctx context.Context, samples []prompb.TimeSeries) {
begin := time.Now()
- s.sendSamplesWithBackoff(samples)
+ err := s.sendSamplesWithBackoff(ctx, samples)
+ if err != nil && s.qm.logLimiter.Allow() {
+ level.Error(s.qm.logger).Log("msg", "non-recoverable error", "count", len(samples), "err", err)
+ failedSamplesTotal.WithLabelValues(s.qm.queueName).Add(float64(len(samples)))
+ }
// These counters are used to calculate the dynamic sharding, and as such
// should be maintained irrespective of success or failure.
@@ -510,30 +712,67 @@ func (s *shards) sendSamples(samples model.Samples) {
}
// sendSamples to the remote storage with backoff for recoverable errors.
-func (s *shards) sendSamplesWithBackoff(samples model.Samples) {
+func (s *shards) sendSamplesWithBackoff(ctx context.Context, samples []prompb.TimeSeries) error {
backoff := s.qm.cfg.MinBackoff
- req := ToWriteRequest(samples)
-
- for retries := s.qm.cfg.MaxRetries; retries > 0; retries-- {
+ req, highest, err := buildWriteRequest(samples)
+ // Failing to build the write request is non-recoverable, since it will
+ // only error if marshaling the proto to bytes fails.
+ if err != nil {
+ return err
+ }
+ for {
+ select {
+ case <-ctx.Done():
+ return ctx.Err()
+ default:
+ }
begin := time.Now()
- err := s.qm.client.Store(s.ctx, req)
+ err := s.qm.client.Store(ctx, req)
sentBatchDuration.WithLabelValues(s.qm.queueName).Observe(time.Since(begin).Seconds())
+
if err == nil {
succeededSamplesTotal.WithLabelValues(s.qm.queueName).Add(float64(len(samples)))
- return
+ now := time.Now()
+ s.qm.setLastSendTimestamp(now)
+ s.qm.setHighestSentTimestamp(highest)
+ return nil
}
- level.Warn(s.qm.logger).Log("msg", "Error sending samples to remote storage", "count", len(samples), "err", err)
if _, ok := err.(recoverableError); !ok {
- break
+ return err
}
+ retriedSamplesTotal.WithLabelValues(s.qm.queueName).Add(float64(len(samples)))
+
+ if s.qm.logLimiter.Allow() {
+ level.Error(s.qm.logger).Log("err", err)
+ }
+
time.Sleep(time.Duration(backoff))
backoff = backoff * 2
if backoff > s.qm.cfg.MaxBackoff {
backoff = s.qm.cfg.MaxBackoff
}
}
-
- failedSamplesTotal.WithLabelValues(s.qm.queueName).Add(float64(len(samples)))
+}
+
+func buildWriteRequest(samples []prompb.TimeSeries) ([]byte, int64, error) {
+ var highest int64
+ for _, ts := range samples {
+ // At the moment we only ever append a TimeSeries with a single sample in it.
+ if ts.Samples[0].Timestamp > highest {
+ highest = ts.Samples[0].Timestamp
+ }
+ }
+ req := &prompb.WriteRequest{
+ Timeseries: samples,
+ }
+
+ data, err := proto.Marshal(req)
+ if err != nil {
+ return nil, highest, err
+ }
+
+ compressed := snappy.Encode(nil, data)
+ return compressed, highest, nil
}
diff --git a/storage/remote/queue_manager_test.go b/storage/remote/queue_manager_test.go
index d70c7789aa..789875d6d8 100644
--- a/storage/remote/queue_manager_test.go
+++ b/storage/remote/queue_manager_test.go
@@ -22,13 +22,229 @@ import (
"testing"
"time"
+ "github.com/gogo/protobuf/proto"
+ "github.com/golang/snappy"
+ "github.com/stretchr/testify/require"
+
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/prompb"
+ "github.com/prometheus/prometheus/util/testutil"
+ "github.com/prometheus/tsdb"
+ "github.com/prometheus/tsdb/labels"
)
const defaultFlushDeadline = 1 * time.Minute
+func TestSampleDelivery(t *testing.T) {
+ // Let's create an even number of send batches so we don't run into the
+ // batch timeout case.
+ n := config.DefaultQueueConfig.Capacity * 2
+ samples, series := createTimeseries(n)
+
+ c := NewTestStorageClient()
+ c.expectSamples(samples[:len(samples)/2], series)
+
+ cfg := config.DefaultQueueConfig
+ cfg.BatchSendDeadline = model.Duration(100 * time.Millisecond)
+ cfg.MaxShards = 1
+ var temp int64
+ m := NewQueueManager(nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), &temp, cfg, nil, nil, c, defaultFlushDeadline, 0)
+ m.seriesLabels = refSeriesToLabelsProto(series)
+
+ // These should be received by the client.
+ m.Start()
+ m.Append(samples[:len(samples)/2])
+ defer m.Stop()
+
+ c.waitForExpectedSamples(t)
+ m.Append(samples[len(samples)/2:])
+ c.expectSamples(samples[len(samples)/2:], series)
+ c.waitForExpectedSamples(t)
+}
+
+func TestSampleDeliveryTimeout(t *testing.T) {
+ // Let's send one less sample than batch size, and wait the timeout duration
+ n := 9
+ samples, series := createTimeseries(n)
+ c := NewTestStorageClient()
+
+ cfg := config.DefaultQueueConfig
+ cfg.MaxShards = 1
+ cfg.BatchSendDeadline = model.Duration(100 * time.Millisecond)
+ var temp int64
+ m := NewQueueManager(nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), &temp, cfg, nil, nil, c, defaultFlushDeadline, 0)
+ m.seriesLabels = refSeriesToLabelsProto(series)
+ m.Start()
+ defer m.Stop()
+
+ // Send the samples twice, waiting for the samples in the meantime.
+ c.expectSamples(samples, series)
+ m.Append(samples)
+ c.waitForExpectedSamples(t)
+
+ c.expectSamples(samples, series)
+ m.Append(samples)
+ c.waitForExpectedSamples(t)
+}
+
+func TestSampleDeliveryOrder(t *testing.T) {
+ ts := 10
+ n := config.DefaultQueueConfig.MaxSamplesPerSend * ts
+ samples := make([]tsdb.RefSample, 0, n)
+ series := make([]tsdb.RefSeries, 0, n)
+ for i := 0; i < n; i++ {
+ name := fmt.Sprintf("test_metric_%d", i%ts)
+ samples = append(samples, tsdb.RefSample{
+ Ref: uint64(i),
+ T: int64(i),
+ V: float64(i),
+ })
+ series = append(series, tsdb.RefSeries{
+ Ref: uint64(i),
+ Labels: labels.Labels{labels.Label{Name: "__name__", Value: name}},
+ })
+ }
+
+ c := NewTestStorageClient()
+ c.expectSamples(samples, series)
+ var temp int64
+ m := NewQueueManager(nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), &temp, config.DefaultQueueConfig, nil, nil, c, defaultFlushDeadline, 0)
+ m.seriesLabels = refSeriesToLabelsProto(series)
+
+ m.Start()
+ defer m.Stop()
+ // These should be received by the client.
+ m.Append(samples)
+ c.waitForExpectedSamples(t)
+}
+
+func TestShutdown(t *testing.T) {
+ deadline := 5 * time.Second
+ c := NewTestBlockedStorageClient()
+
+ var temp int64
+ m := NewQueueManager(nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), &temp, config.DefaultQueueConfig, nil, nil, c, deadline, 0)
+ samples, series := createTimeseries(2 * config.DefaultQueueConfig.MaxSamplesPerSend)
+ m.seriesLabels = refSeriesToLabelsProto(series)
+ m.Start()
+
+ // Append blocks to guarantee delivery, so we do it in the background.
+ go func() {
+ m.Append(samples)
+ }()
+ time.Sleep(1 * time.Second)
+
+ // Test to ensure that Stop doesn't block.
+ start := time.Now()
+ m.Stop()
+ // The samples will never be delivered, so duration should
+ // be at least equal to deadline, otherwise the flush deadline
+ // was not respected.
+ duration := time.Since(start)
+ if duration > time.Duration(deadline+(deadline/10)) {
+ t.Errorf("Took too long to shutdown: %s > %s", duration, deadline)
+ }
+ if duration < time.Duration(deadline) {
+ t.Errorf("Shutdown occurred before flush deadline: %s < %s", duration, deadline)
+ }
+}
+
+func TestSeriesReset(t *testing.T) {
+ c := NewTestBlockedStorageClient()
+ deadline := 5 * time.Second
+ var temp int64
+ numSegments := 4
+ numSeries := 25
+
+ m := NewQueueManager(nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), &temp, config.DefaultQueueConfig, nil, nil, c, deadline, 0)
+ for i := 0; i < numSegments; i++ {
+ series := []tsdb.RefSeries{}
+ for j := 0; j < numSeries; j++ {
+ series = append(series, tsdb.RefSeries{Ref: uint64((i * 100) + j), Labels: labels.Labels{labels.Label{Name: "a", Value: "a"}}})
+ }
+ m.StoreSeries(series, i)
+ }
+ testutil.Equals(t, numSegments*numSeries, len(m.seriesLabels))
+ m.SeriesReset(2)
+ testutil.Equals(t, numSegments*numSeries/2, len(m.seriesLabels))
+}
+
+func TestReshard(t *testing.T) {
+ size := 10 // Make bigger to find more races.
+ n := config.DefaultQueueConfig.Capacity * size
+ samples, series := createTimeseries(n)
+
+ c := NewTestStorageClient()
+ c.expectSamples(samples, series)
+
+ cfg := config.DefaultQueueConfig
+ cfg.MaxShards = 1
+
+ var temp int64
+ m := NewQueueManager(nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), &temp, cfg, nil, nil, c, defaultFlushDeadline, 0)
+ m.seriesLabels = refSeriesToLabelsProto(series)
+
+ m.Start()
+ defer m.Stop()
+
+ go func() {
+ for i := 0; i < len(samples); i += config.DefaultQueueConfig.Capacity {
+ sent := m.Append(samples[i : i+config.DefaultQueueConfig.Capacity])
+ require.True(t, sent)
+ time.Sleep(100 * time.Millisecond)
+ }
+ }()
+
+ for i := 1; i < len(samples)/config.DefaultQueueConfig.Capacity; i++ {
+ m.shards.stop()
+ m.shards.start(i)
+ time.Sleep(100 * time.Millisecond)
+ }
+
+ c.waitForExpectedSamples(t)
+}
+
+func createTimeseries(n int) ([]tsdb.RefSample, []tsdb.RefSeries) {
+ samples := make([]tsdb.RefSample, 0, n)
+ series := make([]tsdb.RefSeries, 0, n)
+ for i := 0; i < n; i++ {
+ name := fmt.Sprintf("test_metric_%d", i)
+ samples = append(samples, tsdb.RefSample{
+ Ref: uint64(i),
+ T: int64(i),
+ V: float64(i),
+ })
+ series = append(series, tsdb.RefSeries{
+ Ref: uint64(i),
+ Labels: labels.Labels{labels.Label{Name: "__name__", Value: name}},
+ })
+ }
+ return samples, series
+}
+
+func getSeriesNameFromRef(r tsdb.RefSeries) string {
+ for _, l := range r.Labels {
+ if l.Name == "__name__" {
+ return l.Value
+ }
+ }
+ return ""
+}
+
+func refSeriesToLabelsProto(series []tsdb.RefSeries) map[uint64][]prompb.Label {
+ result := make(map[uint64][]prompb.Label)
+ for _, s := range series {
+ for _, l := range s.Labels {
+ result[s.Ref] = append(result[s.Ref], prompb.Label{
+ Name: l.Name,
+ Value: l.Value,
+ })
+ }
+ }
+ return result
+}
+
type TestStorageClient struct {
receivedSamples map[string][]prompb.Sample
expectedSamples map[string][]prompb.Sample
@@ -43,7 +259,7 @@ func NewTestStorageClient() *TestStorageClient {
}
}
-func (c *TestStorageClient) expectSamples(ss model.Samples) {
+func (c *TestStorageClient) expectSamples(ss []tsdb.RefSample, series []tsdb.RefSeries) {
c.mtx.Lock()
defer c.mtx.Unlock()
@@ -51,10 +267,10 @@ func (c *TestStorageClient) expectSamples(ss model.Samples) {
c.receivedSamples = map[string][]prompb.Sample{}
for _, s := range ss {
- ts := labelProtosToLabels(MetricToLabelProtos(s.Metric)).String()
- c.expectedSamples[ts] = append(c.expectedSamples[ts], prompb.Sample{
- Timestamp: int64(s.Timestamp),
- Value: float64(s.Value),
+ seriesName := getSeriesNameFromRef(series[s.Ref])
+ c.expectedSamples[seriesName] = append(c.expectedSamples[seriesName], prompb.Sample{
+ Timestamp: s.T,
+ Value: s.V,
})
}
c.wg.Add(len(ss))
@@ -62,7 +278,6 @@ func (c *TestStorageClient) expectSamples(ss model.Samples) {
func (c *TestStorageClient) waitForExpectedSamples(t *testing.T) {
c.wg.Wait()
-
c.mtx.Lock()
defer c.mtx.Unlock()
for ts, expectedSamples := range c.expectedSamples {
@@ -72,15 +287,31 @@ func (c *TestStorageClient) waitForExpectedSamples(t *testing.T) {
}
}
-func (c *TestStorageClient) Store(_ context.Context, req *prompb.WriteRequest) error {
+func (c *TestStorageClient) Store(_ context.Context, req []byte) error {
c.mtx.Lock()
defer c.mtx.Unlock()
+ reqBuf, err := snappy.Decode(nil, req)
+ if err != nil {
+ return err
+ }
+
+ var reqProto prompb.WriteRequest
+ if err := proto.Unmarshal(reqBuf, &reqProto); err != nil {
+ return err
+ }
+
count := 0
- for _, ts := range req.Timeseries {
- labels := labelProtosToLabels(ts.Labels).String()
+ for _, ts := range reqProto.Timeseries {
+ var seriesName string
+ labels := labelProtosToLabels(ts.Labels)
+ for _, label := range labels {
+ if label.Name == "__name__" {
+ seriesName = label.Value
+ }
+ }
for _, sample := range ts.Samples {
count++
- c.receivedSamples[labels] = append(c.receivedSamples[labels], sample)
+ c.receivedSamples[seriesName] = append(c.receivedSamples[seriesName], sample)
}
}
c.wg.Add(-count)
@@ -91,133 +322,21 @@ func (c *TestStorageClient) Name() string {
return "teststorageclient"
}
-func TestSampleDelivery(t *testing.T) {
- // Let's create an even number of send batches so we don't run into the
- // batch timeout case.
- n := config.DefaultQueueConfig.Capacity * 2
-
- samples := make(model.Samples, 0, n)
- for i := 0; i < n; i++ {
- name := model.LabelValue(fmt.Sprintf("test_metric_%d", i))
- samples = append(samples, &model.Sample{
- Metric: model.Metric{
- model.MetricNameLabel: name,
- },
- Value: model.SampleValue(i),
- })
- }
-
- c := NewTestStorageClient()
- c.expectSamples(samples[:len(samples)/2])
-
- cfg := config.DefaultQueueConfig
- cfg.MaxShards = 1
- m := NewQueueManager(nil, cfg, nil, nil, c, defaultFlushDeadline)
-
- // These should be received by the client.
- for _, s := range samples[:len(samples)/2] {
- m.Append(s)
- }
- // These will be dropped because the queue is full.
- for _, s := range samples[len(samples)/2:] {
- m.Append(s)
- }
- m.Start()
- defer m.Stop()
-
- c.waitForExpectedSamples(t)
-}
-
-func TestSampleDeliveryTimeout(t *testing.T) {
- // Let's send one less sample than batch size, and wait the timeout duration
- n := config.DefaultQueueConfig.Capacity - 1
-
- samples := make(model.Samples, 0, n)
- for i := 0; i < n; i++ {
- name := model.LabelValue(fmt.Sprintf("test_metric_%d", i))
- samples = append(samples, &model.Sample{
- Metric: model.Metric{
- model.MetricNameLabel: name,
- },
- Value: model.SampleValue(i),
- })
- }
-
- c := NewTestStorageClient()
-
- cfg := config.DefaultQueueConfig
- cfg.MaxShards = 1
- cfg.BatchSendDeadline = model.Duration(100 * time.Millisecond)
- m := NewQueueManager(nil, cfg, nil, nil, c, defaultFlushDeadline)
- m.Start()
- defer m.Stop()
-
- // Send the samples twice, waiting for the samples in the meantime.
- c.expectSamples(samples)
- for _, s := range samples {
- m.Append(s)
- }
- c.waitForExpectedSamples(t)
-
- c.expectSamples(samples)
- for _, s := range samples {
- m.Append(s)
- }
- c.waitForExpectedSamples(t)
-}
-
-func TestSampleDeliveryOrder(t *testing.T) {
- ts := 10
- n := config.DefaultQueueConfig.MaxSamplesPerSend * ts
-
- samples := make(model.Samples, 0, n)
- for i := 0; i < n; i++ {
- name := model.LabelValue(fmt.Sprintf("test_metric_%d", i%ts))
- samples = append(samples, &model.Sample{
- Metric: model.Metric{
- model.MetricNameLabel: name,
- },
- Value: model.SampleValue(i),
- Timestamp: model.Time(i),
- })
- }
-
- c := NewTestStorageClient()
- c.expectSamples(samples)
- m := NewQueueManager(nil, config.DefaultQueueConfig, nil, nil, c, defaultFlushDeadline)
-
- // These should be received by the client.
- for _, s := range samples {
- m.Append(s)
- }
- m.Start()
- defer m.Stop()
-
- c.waitForExpectedSamples(t)
-}
-
// TestBlockingStorageClient is a queue_manager StorageClient which will block
-// on any calls to Store(), until the `block` channel is closed, at which point
-// the `numCalls` property will contain a count of how many times Store() was
-// called.
+// on any calls to Store(), until the request's Context is cancelled, at which
+// point the `numCalls` property will contain a count of how many times Store()
+// was called.
type TestBlockingStorageClient struct {
numCalls uint64
- block chan bool
}
func NewTestBlockedStorageClient() *TestBlockingStorageClient {
- return &TestBlockingStorageClient{
- block: make(chan bool),
- numCalls: 0,
- }
+ return &TestBlockingStorageClient{}
}
-func (c *TestBlockingStorageClient) Store(ctx context.Context, _ *prompb.WriteRequest) error {
+func (c *TestBlockingStorageClient) Store(ctx context.Context, _ []byte) error {
atomic.AddUint64(&c.numCalls, 1)
- select {
- case <-c.block:
- case <-ctx.Done():
- }
+ <-ctx.Done()
return nil
}
@@ -225,106 +344,6 @@ func (c *TestBlockingStorageClient) NumCalls() uint64 {
return atomic.LoadUint64(&c.numCalls)
}
-func (c *TestBlockingStorageClient) unlock() {
- close(c.block)
-}
-
func (c *TestBlockingStorageClient) Name() string {
return "testblockingstorageclient"
}
-
-func (t *QueueManager) queueLen() int {
- t.shardsMtx.Lock()
- defer t.shardsMtx.Unlock()
- queueLength := 0
- for _, shard := range t.shards.queues {
- queueLength += len(shard)
- }
- return queueLength
-}
-
-func TestSpawnNotMoreThanMaxConcurrentSendsGoroutines(t *testing.T) {
- // Our goal is to fully empty the queue:
- // `MaxSamplesPerSend*Shards` samples should be consumed by the
- // per-shard goroutines, and then another `MaxSamplesPerSend`
- // should be left on the queue.
- n := config.DefaultQueueConfig.MaxSamplesPerSend * 2
-
- samples := make(model.Samples, 0, n)
- for i := 0; i < n; i++ {
- name := model.LabelValue(fmt.Sprintf("test_metric_%d", i))
- samples = append(samples, &model.Sample{
- Metric: model.Metric{
- model.MetricNameLabel: name,
- },
- Value: model.SampleValue(i),
- })
- }
-
- c := NewTestBlockedStorageClient()
- cfg := config.DefaultQueueConfig
- cfg.MaxShards = 1
- cfg.Capacity = n
- m := NewQueueManager(nil, cfg, nil, nil, c, defaultFlushDeadline)
-
- m.Start()
-
- defer func() {
- c.unlock()
- m.Stop()
- }()
-
- for _, s := range samples {
- m.Append(s)
- }
-
- // Wait until the runShard() loops drain the queue. If things went right, it
- // should then immediately block in sendSamples(), but, in case of error,
- // it would spawn too many goroutines, and thus we'd see more calls to
- // client.Store()
- //
- // The timed wait is maybe non-ideal, but, in order to verify that we're
- // not spawning too many concurrent goroutines, we have to wait on the
- // Run() loop to consume a specific number of elements from the
- // queue... and it doesn't signal that in any obvious way, except by
- // draining the queue. We cap the waiting at 1 second -- that should give
- // plenty of time, and keeps the failure fairly quick if we're not draining
- // the queue properly.
- for i := 0; i < 100 && m.queueLen() > 0; i++ {
- time.Sleep(10 * time.Millisecond)
- }
-
- if m.queueLen() != config.DefaultQueueConfig.MaxSamplesPerSend {
- t.Fatalf("Failed to drain QueueManager queue, %d elements left",
- m.queueLen(),
- )
- }
-
- numCalls := c.NumCalls()
- if numCalls != uint64(1) {
- t.Errorf("Saw %d concurrent sends, expected 1", numCalls)
- }
-}
-
-func TestShutdown(t *testing.T) {
- deadline := 10 * time.Second
- c := NewTestBlockedStorageClient()
- m := NewQueueManager(nil, config.DefaultQueueConfig, nil, nil, c, deadline)
- for i := 0; i < config.DefaultQueueConfig.MaxSamplesPerSend; i++ {
- m.Append(&model.Sample{
- Metric: model.Metric{
- model.MetricNameLabel: model.LabelValue(fmt.Sprintf("test_metric_%d", i)),
- },
- Value: model.SampleValue(i),
- Timestamp: model.Time(i),
- })
- }
- m.Start()
-
- start := time.Now()
- m.Stop()
- duration := time.Since(start)
- if duration > deadline+(deadline/10) {
- t.Errorf("Took too long to shutdown: %s > %s", duration, deadline)
- }
-}
diff --git a/storage/remote/storage.go b/storage/remote/storage.go
index 776edc07f0..428773c053 100644
--- a/storage/remote/storage.go
+++ b/storage/remote/storage.go
@@ -19,9 +19,12 @@ import (
"time"
"github.com/go-kit/kit/log"
+
+ "github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/pkg/labels"
+ "github.com/prometheus/prometheus/pkg/timestamp"
"github.com/prometheus/prometheus/storage"
)
@@ -35,7 +38,13 @@ type Storage struct {
mtx sync.RWMutex
// For writes
- queues []*QueueManager
+ walDir string
+ queues []*QueueManager
+ samplesIn *ewmaRate
+ samplesInMetric prometheus.Counter
+ highestTimestampMtx sync.Mutex
+ highestTimestamp int64
+ highestTimestampMetric prometheus.Gauge
// For reads
queryables []storage.Queryable
@@ -44,15 +53,30 @@ type Storage struct {
}
// NewStorage returns a remote.Storage.
-func NewStorage(l log.Logger, stCallback startTimeCallback, flushDeadline time.Duration) *Storage {
+func NewStorage(l log.Logger, reg prometheus.Registerer, stCallback startTimeCallback, walDir string, flushDeadline time.Duration) *Storage {
if l == nil {
l = log.NewNopLogger()
}
- return &Storage{
+ shardUpdateDuration := 10 * time.Second
+ s := &Storage{
logger: l,
localStartTimeCallback: stCallback,
flushDeadline: flushDeadline,
+ walDir: walDir,
+ // queues: make(map[*QueueManager]struct{}),
+ samplesIn: newEWMARate(ewmaWeight, shardUpdateDuration),
+ samplesInMetric: prometheus.NewCounter(prometheus.CounterOpts{
+ Name: "prometheus_remote_storage_samples_in_total",
+ Help: "Samples in to remote storage, compare to samples out for queue managers.",
+ }),
+ highestTimestampMetric: prometheus.NewGauge(prometheus.GaugeOpts{
+ Name: "prometheus_remote_storage_highest_timestamp_in",
+ Help: "Highest timestamp that has come into the remote storage via the Appender interface.",
+ }),
}
+ reg.MustRegister(s.samplesInMetric)
+ reg.MustRegister(s.highestTimestampMetric)
+ return s
}
// ApplyConfig updates the state as the new config requires.
@@ -61,7 +85,6 @@ func (s *Storage) ApplyConfig(conf *config.Config) error {
defer s.mtx.Unlock()
// Update write queues
-
newQueues := []*QueueManager{}
// TODO: we should only stop & recreate queues which have changes,
// as this can be quite disruptive.
@@ -74,13 +97,20 @@ func (s *Storage) ApplyConfig(conf *config.Config) error {
if err != nil {
return err
}
+ // Convert to int64 for comparison with timestamps from samples
+ // we will eventually read from the WAL on startup.
+ startTime := timestamp.FromTime(time.Now())
newQueues = append(newQueues, NewQueueManager(
s.logger,
+ s.walDir,
+ s.samplesIn,
+ &s.highestTimestamp,
rwConf.QueueConfig,
conf.GlobalConfig.ExternalLabels,
rwConf.WriteRelabelConfigs,
c,
s.flushDeadline,
+ startTime,
))
}
diff --git a/storage/remote/wal_watcher.go b/storage/remote/wal_watcher.go
new file mode 100644
index 0000000000..b3e93dcb46
--- /dev/null
+++ b/storage/remote/wal_watcher.go
@@ -0,0 +1,521 @@
+// Copyright 2018 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package remote
+
+import (
+ "fmt"
+ "io"
+ "math"
+ "os"
+ "path"
+ "strconv"
+ "strings"
+ "time"
+
+ "github.com/go-kit/kit/log"
+ "github.com/go-kit/kit/log/level"
+ "github.com/pkg/errors"
+
+ "github.com/prometheus/client_golang/prometheus"
+ "github.com/prometheus/tsdb"
+ "github.com/prometheus/tsdb/fileutil"
+ "github.com/prometheus/tsdb/wal"
+)
+
+const (
+ readPeriod = 10 * time.Millisecond
+ checkpointPeriod = 5 * time.Second
+ segmentCheckPeriod = 100 * time.Millisecond
+)
+
+var (
+ watcherSamplesRecordsRead = prometheus.NewCounterVec(
+ prometheus.CounterOpts{
+ Namespace: "prometheus",
+ Subsystem: "wal_watcher",
+ Name: "samples_records_read_total",
+ Help: "Number of samples records read by the WAL watcher from the WAL.",
+ },
+ []string{queue},
+ )
+ watcherSeriesRecordsRead = prometheus.NewCounterVec(
+ prometheus.CounterOpts{
+ Namespace: "prometheus",
+ Subsystem: "wal_watcher",
+ Name: "series_records_read_total",
+ Help: "Number of series records read by the WAL watcher from the WAL.",
+ },
+ []string{queue},
+ )
+ watcherTombstoneRecordsRead = prometheus.NewCounterVec(
+ prometheus.CounterOpts{
+ Namespace: "prometheus",
+ Subsystem: "wal_watcher",
+ Name: "tombstone_records_read_total",
+ Help: "Number of tombstone records read by the WAL watcher from the WAL.",
+ },
+ []string{queue},
+ )
+ watcherInvalidRecordsRead = prometheus.NewCounterVec(
+ prometheus.CounterOpts{
+ Namespace: "prometheus",
+ Subsystem: "wal_watcher",
+ Name: "invalid_records_read_total",
+ Help: "Number of invalid records read by the WAL watcher from the WAL.",
+ },
+ []string{queue},
+ )
+ watcherUnknownTypeRecordsRead = prometheus.NewCounterVec(
+ prometheus.CounterOpts{
+ Namespace: "prometheus",
+ Subsystem: "wal_watcher",
+ Name: "unknown_records_read_total",
+ Help: "Number of records read by the WAL watcher from the WAL of an unknown record type.",
+ },
+ []string{queue},
+ )
+ watcherRecordDecodeFails = prometheus.NewCounterVec(
+ prometheus.CounterOpts{
+ Namespace: "prometheus",
+ Subsystem: "wal_watcher",
+ Name: "record_decode_failures_total",
+ Help: "Number of records read by the WAL watcher that resulted in an error when decoding.",
+ },
+ []string{queue},
+ )
+ watcherSamplesSentPreTailing = prometheus.NewCounterVec(
+ prometheus.CounterOpts{
+ Namespace: "prometheus",
+ Subsystem: "wal_watcher",
+ Name: "samples_sent_pre_tailing_total",
+ Help: "Number of sample records read by the WAL watcher and sent to remote write during replay of existing WAL.",
+ },
+ []string{queue},
+ )
+ watcherCurrentSegment = prometheus.NewGaugeVec(
+ prometheus.GaugeOpts{
+ Namespace: "prometheus",
+ Subsystem: "wal_watcher",
+ Name: "current_segment",
+ Help: "Current segment the WAL watcher is reading records from.",
+ },
+ []string{queue},
+ )
+)
+
+func init() {
+ prometheus.MustRegister(watcherSamplesRecordsRead)
+ prometheus.MustRegister(watcherSeriesRecordsRead)
+ prometheus.MustRegister(watcherTombstoneRecordsRead)
+ prometheus.MustRegister(watcherInvalidRecordsRead)
+ prometheus.MustRegister(watcherUnknownTypeRecordsRead)
+ prometheus.MustRegister(watcherRecordDecodeFails)
+ prometheus.MustRegister(watcherSamplesSentPreTailing)
+ prometheus.MustRegister(watcherCurrentSegment)
+}
+
+type writeTo interface {
+ Append([]tsdb.RefSample) bool
+ StoreSeries([]tsdb.RefSeries, int)
+ SeriesReset(int)
+}
+
+// WALWatcher watches the TSDB WAL for a given WriteTo.
+type WALWatcher struct {
+ name string
+ writer writeTo
+ logger log.Logger
+ walDir string
+
+ currentSegment int
+ lastCheckpoint string
+ startTime int64
+
+ samplesReadMetric prometheus.Counter
+ seriesReadMetric prometheus.Counter
+ tombstonesReadMetric prometheus.Counter
+ invalidReadMetric prometheus.Counter
+ unknownReadMetric prometheus.Counter
+ recordDecodeFailsMetric prometheus.Counter
+ samplesSentPreTailing prometheus.Counter
+ currentSegmentMetric prometheus.Gauge
+
+ quit chan struct{}
+}
+
+// NewWALWatcher creates a new WAL watcher for a given WriteTo.
+func NewWALWatcher(logger log.Logger, name string, writer writeTo, walDir string, startTime int64) *WALWatcher {
+ if logger == nil {
+ logger = log.NewNopLogger()
+ }
+ w := &WALWatcher{
+ logger: logger,
+ writer: writer,
+ walDir: path.Join(walDir, "wal"),
+ startTime: startTime,
+ name: name,
+ quit: make(chan struct{}),
+ }
+
+ w.samplesReadMetric = watcherSamplesRecordsRead.WithLabelValues(w.name)
+ w.seriesReadMetric = watcherSeriesRecordsRead.WithLabelValues(w.name)
+ w.tombstonesReadMetric = watcherTombstoneRecordsRead.WithLabelValues(w.name)
+ w.unknownReadMetric = watcherUnknownTypeRecordsRead.WithLabelValues(w.name)
+ w.invalidReadMetric = watcherInvalidRecordsRead.WithLabelValues(w.name)
+ w.recordDecodeFailsMetric = watcherRecordDecodeFails.WithLabelValues(w.name)
+ w.samplesSentPreTailing = watcherSamplesSentPreTailing.WithLabelValues(w.name)
+ w.currentSegmentMetric = watcherCurrentSegment.WithLabelValues(w.name)
+
+ return w
+}
+
+func (w *WALWatcher) Start() {
+ level.Info(w.logger).Log("msg", "starting WAL watcher", "queue", w.name)
+ go w.runWatcher()
+}
+
+func (w *WALWatcher) Stop() {
+ level.Info(w.logger).Log("msg", "stopping WAL watcher", "queue", w.name)
+ close(w.quit)
+}
+
+func (w *WALWatcher) runWatcher() {
+ // The WAL dir may not exist when Prometheus first starts up.
+ for {
+ if _, err := os.Stat(w.walDir); os.IsNotExist(err) {
+ time.Sleep(time.Second)
+ } else {
+ break
+ }
+ }
+
+ nw, err := wal.New(nil, nil, w.walDir)
+ if err != nil {
+ level.Error(w.logger).Log("err", err)
+ return
+ }
+
+ first, last, err := nw.Segments()
+ if err != nil {
+ level.Error(w.logger).Log("err", err)
+ return
+ }
+
+ if last == -1 {
+ level.Error(w.logger).Log("err", err)
+ return
+ }
+
+ // Backfill from the checkpoint first if it exists.
+ dir, _, err := tsdb.LastCheckpoint(w.walDir)
+ if err != nil && err != tsdb.ErrNotFound {
+ level.Error(w.logger).Log("msg", "error looking for existing checkpoint, some samples may be dropped", "err", errors.Wrap(err, "find last checkpoint"))
+ }
+
+ level.Debug(w.logger).Log("msg", "reading checkpoint", "dir", dir)
+ if err == nil {
+ w.lastCheckpoint = dir
+ err = w.readCheckpoint(dir)
+ if err != nil {
+ level.Error(w.logger).Log("msg", "error reading existing checkpoint, some samples may be dropped", "err", err)
+ }
+ }
+
+ w.currentSegment = first
+ w.currentSegmentMetric.Set(float64(w.currentSegment))
+ segment, err := wal.OpenReadSegment(wal.SegmentName(w.walDir, w.currentSegment))
+ // TODO: callum, is this error really fatal?
+ if err != nil {
+ level.Error(w.logger).Log("err", err)
+ return
+ }
+ reader := wal.NewLiveReader(segment)
+ tail := false
+
+ for {
+ // If we've replayed the existing WAL, start tailing.
+ if w.currentSegment == last {
+ tail = true
+ }
+ if tail {
+ level.Info(w.logger).Log("msg", "watching segment", "segment", w.currentSegment)
+ } else {
+ level.Info(w.logger).Log("msg", "replaying segment", "segment", w.currentSegment)
+ }
+
+ // On start, after reading the existing WAL for series records, we have a pointer to what is the latest segment.
+ // On subsequent calls to this function, currentSegment will have been incremented and we should open that segment.
+ err := w.watch(nw, reader, tail)
+ segment.Close()
+ if err != nil {
+ level.Error(w.logger).Log("msg", "runWatcher is ending", "err", err)
+ return
+ }
+
+ w.currentSegment++
+ w.currentSegmentMetric.Set(float64(w.currentSegment))
+
+ segment, err = wal.OpenReadSegment(wal.SegmentName(w.walDir, w.currentSegment))
+ // TODO: callum, is this error really fatal?
+ if err != nil {
+ level.Error(w.logger).Log("err", err)
+ return
+ }
+ reader = wal.NewLiveReader(segment)
+ }
+}
+
+// Use tail true to indicate that the reader is currently on a segment that is
+// actively being written to. If false, assume it's a full segment and we're
+// replaying it on start to cache the series records.
+func (w *WALWatcher) watch(wl *wal.WAL, reader *wal.LiveReader, tail bool) error {
+
+ readTicker := time.NewTicker(readPeriod)
+ defer readTicker.Stop()
+
+ checkpointTicker := time.NewTicker(checkpointPeriod)
+ defer checkpointTicker.Stop()
+
+ segmentTicker := time.NewTicker(segmentCheckPeriod)
+ defer segmentTicker.Stop()
+ // If we're replaying the segment we need to know the size of the file to know
+ // when to return from watch and move on to the next segment.
+ size := int64(math.MaxInt64)
+ if !tail {
+ segmentTicker.Stop()
+ checkpointTicker.Stop()
+ var err error
+ size, err = getSegmentSize(w.walDir, w.currentSegment)
+ if err != nil {
+ level.Error(w.logger).Log("msg", "error getting segment size", "segment", w.currentSegment)
+ return errors.Wrap(err, "get segment size")
+ }
+ }
+
+ for {
+ select {
+ case <-w.quit:
+ level.Info(w.logger).Log("msg", "quitting WAL watcher watch loop")
+ return errors.New("quit channel")
+
+ case <-checkpointTicker.C:
+ // Periodically check if there is a new checkpoint.
+ // As this is considered an optimisation, we ignore errors during
+ // checkpoint processing.
+
+ dir, _, err := tsdb.LastCheckpoint(w.walDir)
+ if err != nil && err != tsdb.ErrNotFound {
+ level.Error(w.logger).Log("msg", "error getting last checkpoint", "err", err)
+ continue
+ }
+
+ if dir == w.lastCheckpoint {
+ continue
+ }
+
+ level.Info(w.logger).Log("msg", "new checkpoint detected", "last", w.lastCheckpoint, "new", dir)
+
+ d, err := checkpointNum(dir)
+ if err != nil {
+ level.Error(w.logger).Log("msg", "error parsing checkpoint", "err", err)
+ continue
+ }
+
+ if d >= w.currentSegment {
+ level.Info(w.logger).Log("msg", "current segment is behind the checkpoint, skipping reading of checkpoint", "current", fmt.Sprintf("%08d", w.currentSegment), "checkpoint", dir)
+ continue
+ }
+
+ w.lastCheckpoint = dir
+ // This potentially takes a long time, should we run it in another go routine?
+ err = w.readCheckpoint(w.lastCheckpoint)
+ if err != nil {
+ level.Error(w.logger).Log("err", err)
+ }
+ // Clear series with a checkpoint or segment index # lower than the checkpoint we just read.
+ w.writer.SeriesReset(d)
+
+ case <-segmentTicker.C:
+ _, last, err := wl.Segments()
+ if err != nil {
+ return errors.Wrap(err, "segments")
+ }
+
+ // Check if new segments exists.
+ if last <= w.currentSegment {
+ continue
+ }
+
+ if err := w.readSegment(reader); err != nil {
+ // Ignore errors reading to end of segment, as we're going to move to
+ // next segment now.
+ level.Error(w.logger).Log("msg", "error reading to end of segment", "err", err)
+ }
+
+ level.Info(w.logger).Log("msg", "a new segment exists, we should start reading it", "current", fmt.Sprintf("%08d", w.currentSegment), "new", fmt.Sprintf("%08d", last))
+ return nil
+
+ case <-readTicker.C:
+ if err := w.readSegment(reader); err != nil && err != io.EOF {
+ level.Error(w.logger).Log("err", err)
+ return err
+ }
+ if reader.TotalRead() >= size && !tail {
+ level.Info(w.logger).Log("msg", "done replaying segment", "segment", w.currentSegment, "size", size, "read", reader.TotalRead())
+ return nil
+ }
+ }
+ }
+}
+
+func (w *WALWatcher) readSegment(r *wal.LiveReader) error {
+ for r.Next() && !isClosed(w.quit) {
+ err := w.decodeRecord(r.Record())
+
+ // Intentionally skip over record decode errors.
+ if err != nil {
+ level.Error(w.logger).Log("err", err)
+ }
+ }
+ return r.Err()
+}
+
+func (w *WALWatcher) decodeRecord(rec []byte) error {
+ var (
+ dec tsdb.RecordDecoder
+ series []tsdb.RefSeries
+ samples []tsdb.RefSample
+ )
+ switch dec.Type(rec) {
+ case tsdb.RecordSeries:
+ series, err := dec.Series(rec, series[:0])
+ if err != nil {
+ w.recordDecodeFailsMetric.Inc()
+ return err
+ }
+ w.seriesReadMetric.Add(float64(len(series)))
+ w.writer.StoreSeries(series, w.currentSegment)
+
+ case tsdb.RecordSamples:
+ samples, err := dec.Samples(rec, samples[:0])
+ if err != nil {
+ w.recordDecodeFailsMetric.Inc()
+ return err
+ }
+ var send []tsdb.RefSample
+ for _, s := range samples {
+ if s.T > w.startTime {
+ send = append(send, s)
+ }
+ }
+ if len(send) > 0 {
+ // We don't want to count samples read prior to the starting timestamp
+ // so that we can compare samples in vs samples read and succeeded samples.
+ w.samplesReadMetric.Add(float64(len(samples)))
+ // Blocks until the sample is sent to all remote write endpoints or closed (because enqueue blocks).
+ w.writer.Append(send)
+ }
+
+ case tsdb.RecordTombstones:
+ w.tombstonesReadMetric.Add(float64(len(samples)))
+
+ case tsdb.RecordInvalid:
+ w.invalidReadMetric.Add(float64(len(samples)))
+ return errors.New("invalid record")
+
+ default:
+ w.recordDecodeFailsMetric.Inc()
+ return errors.New("unknown TSDB record type")
+ }
+ return nil
+}
+
+// Read all the series records from a Checkpoint directory.
+func (w *WALWatcher) readCheckpoint(checkpointDir string) error {
+ level.Info(w.logger).Log("msg", "reading checkpoint", "dir", checkpointDir)
+ sr, err := wal.NewSegmentsReader(checkpointDir)
+ if err != nil {
+ return errors.Wrap(err, "open checkpoint")
+ }
+ defer sr.Close()
+
+ size, err := getCheckpointSize(checkpointDir)
+ if err != nil {
+ level.Error(w.logger).Log("msg", "error getting checkpoint size", "checkpoint", checkpointDir)
+ return errors.Wrap(err, "get checkpoint size")
+ }
+
+ // w.readSeriesRecords(wal.NewLiveReader(sr), i, size)
+ r := wal.NewLiveReader(sr)
+ w.readSegment(r)
+ if r.TotalRead() != size {
+ level.Warn(w.logger).Log("msg", "may not have read all data from checkpoint")
+ }
+ level.Debug(w.logger).Log("msg", "read series references from checkpoint", "checkpoint", checkpointDir)
+ return nil
+}
+
+func checkpointNum(dir string) (int, error) {
+ // Checkpoint dir names are in the format checkpoint.000001
+ chunks := strings.Split(dir, ".")
+ if len(chunks) != 2 {
+ return 0, errors.Errorf("invalid checkpoint dir string: %s", dir)
+ }
+
+ result, err := strconv.Atoi(chunks[1])
+ if err != nil {
+ return 0, errors.Errorf("invalid checkpoint dir string: %s", dir)
+ }
+
+ return result, nil
+}
+
+func getCheckpointSize(dir string) (int64, error) {
+ i := int64(0)
+ segs, err := fileutil.ReadDir(dir)
+ if err != nil {
+ return 0, err
+ }
+ for _, fn := range segs {
+ num, err := strconv.Atoi(fn)
+ if err != nil {
+ return i, err
+ }
+ sz, err := getSegmentSize(dir, num)
+ if err != nil {
+ return i, err
+ }
+ i += sz
+ }
+ return i, nil
+}
+
+// Get size of segment.
+func getSegmentSize(dir string, index int) (int64, error) {
+ i := int64(-1)
+ fi, err := os.Stat(wal.SegmentName(dir, index))
+ if err == nil {
+ i = fi.Size()
+ }
+ return i, err
+}
+
+func isClosed(c chan struct{}) bool {
+ select {
+ case <-c:
+ return true
+ default:
+ return false
+ }
+}
diff --git a/storage/remote/wal_watcher_test.go b/storage/remote/wal_watcher_test.go
new file mode 100644
index 0000000000..9a68a5e3e3
--- /dev/null
+++ b/storage/remote/wal_watcher_test.go
@@ -0,0 +1,417 @@
+// Copyright 2018 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+package remote
+
+import (
+ "fmt"
+ "io/ioutil"
+ "math/rand"
+ "os"
+ "path"
+ "sync"
+ "testing"
+ "time"
+
+ "github.com/prometheus/prometheus/pkg/timestamp"
+ "github.com/prometheus/prometheus/util/testutil"
+ "github.com/prometheus/tsdb"
+ "github.com/prometheus/tsdb/labels"
+ "github.com/prometheus/tsdb/wal"
+)
+
+var defaultRetryInterval = 100 * time.Millisecond
+var defaultRetries = 100
+
+// retry executes f() n times at each interval until it returns true.
+func retry(t *testing.T, interval time.Duration, n int, f func() bool) {
+ t.Helper()
+ ticker := time.NewTicker(interval)
+ for i := 0; i <= n; i++ {
+ if f() {
+ return
+ }
+ t.Logf("retry %d/%d", i, n)
+ <-ticker.C
+ }
+ ticker.Stop()
+ t.Logf("function returned false")
+}
+
+type writeToMock struct {
+ samplesAppended int
+ seriesLock sync.Mutex
+ seriesSegmentIndexes map[uint64]int
+}
+
+func (wtm *writeToMock) Append(s []tsdb.RefSample) bool {
+ wtm.samplesAppended += len(s)
+ return true
+}
+
+func (wtm *writeToMock) StoreSeries(series []tsdb.RefSeries, index int) {
+ wtm.seriesLock.Lock()
+ defer wtm.seriesLock.Unlock()
+ for _, s := range series {
+ wtm.seriesSegmentIndexes[s.Ref] = index
+ }
+}
+
+func (wtm *writeToMock) SeriesReset(index int) {
+ // Check for series that are in segments older than the checkpoint
+ // that were not also present in the checkpoint.
+ wtm.seriesLock.Lock()
+ defer wtm.seriesLock.Unlock()
+ for k, v := range wtm.seriesSegmentIndexes {
+ if v < index {
+ delete(wtm.seriesSegmentIndexes, k)
+ }
+ }
+}
+
+func (wtm *writeToMock) checkNumLabels() int {
+ wtm.seriesLock.Lock()
+ defer wtm.seriesLock.Unlock()
+ return len(wtm.seriesSegmentIndexes)
+}
+
+func newWriteToMock() *writeToMock {
+ return &writeToMock{
+ seriesSegmentIndexes: make(map[uint64]int),
+ }
+}
+
+func Test_readToEnd_noCheckpoint(t *testing.T) {
+ pageSize := 32 * 1024
+ const seriesCount = 10
+ const samplesCount = 250
+
+ dir, err := ioutil.TempDir("", "readToEnd_noCheckpoint")
+ testutil.Ok(t, err)
+ defer os.RemoveAll(dir)
+ wdir := path.Join(dir, "wal")
+ err = os.Mkdir(wdir, 0777)
+ testutil.Ok(t, err)
+
+ w, err := wal.NewSize(nil, nil, wdir, 128*pageSize)
+ testutil.Ok(t, err)
+
+ var recs [][]byte
+
+ enc := tsdb.RecordEncoder{}
+
+ for i := 0; i < seriesCount; i++ {
+ series := enc.Series([]tsdb.RefSeries{
+ tsdb.RefSeries{
+ Ref: uint64(i),
+ Labels: labels.Labels{labels.Label{"__name__", fmt.Sprintf("metric_%d", i)}},
+ },
+ }, nil)
+ recs = append(recs, series)
+ for j := 0; j < samplesCount; j++ {
+ sample := enc.Samples([]tsdb.RefSample{
+ tsdb.RefSample{
+ Ref: uint64(j),
+ T: int64(i),
+ V: float64(i),
+ },
+ }, nil)
+
+ recs = append(recs, sample)
+
+ // Randomly batch up records.
+ if rand.Intn(4) < 3 {
+ testutil.Ok(t, w.Log(recs...))
+ recs = recs[:0]
+ }
+ }
+ }
+ testutil.Ok(t, w.Log(recs...))
+
+ _, _, err = w.Segments()
+ testutil.Ok(t, err)
+
+ wt := newWriteToMock()
+ st := timestamp.FromTime(time.Now())
+ watcher := NewWALWatcher(nil, "", wt, dir, st)
+ go watcher.Start()
+
+ expected := seriesCount
+ retry(t, defaultRetryInterval, defaultRetries, func() bool {
+ return wt.checkNumLabels() >= expected
+ })
+ watcher.Stop()
+ testutil.Equals(t, expected, wt.checkNumLabels())
+}
+
+func Test_readToEnd_withCheckpoint(t *testing.T) {
+ pageSize := 32 * 1024
+ const seriesCount = 10
+ const samplesCount = 250
+
+ dir, err := ioutil.TempDir("", "readToEnd_withCheckpoint")
+ testutil.Ok(t, err)
+ defer os.RemoveAll(dir)
+
+ wdir := path.Join(dir, "wal")
+ err = os.Mkdir(wdir, 0777)
+ testutil.Ok(t, err)
+
+ os.Create(wal.SegmentName(wdir, 30))
+
+ enc := tsdb.RecordEncoder{}
+ w, err := wal.NewSize(nil, nil, wdir, 128*pageSize)
+ testutil.Ok(t, err)
+
+ // Write to the initial segment then checkpoint.
+ for i := 0; i < seriesCount*10; i++ {
+ ref := i + 100
+ series := enc.Series([]tsdb.RefSeries{
+ tsdb.RefSeries{
+ Ref: uint64(ref),
+ Labels: labels.Labels{labels.Label{"__name__", fmt.Sprintf("metric_%d", i)}},
+ },
+ }, nil)
+ testutil.Ok(t, w.Log(series))
+
+ for j := 0; j < samplesCount*10; j++ {
+ inner := rand.Intn(ref + 1)
+ sample := enc.Samples([]tsdb.RefSample{
+ tsdb.RefSample{
+ Ref: uint64(inner),
+ T: int64(i),
+ V: float64(i),
+ },
+ }, nil)
+ testutil.Ok(t, w.Log(sample))
+ }
+ }
+ tsdb.Checkpoint(w, 30, 31, func(x uint64) bool { return true }, 0)
+ w.Truncate(32)
+
+ // Write more records after checkpointing.
+ for i := 0; i < seriesCount*10; i++ {
+ series := enc.Series([]tsdb.RefSeries{
+ tsdb.RefSeries{
+ Ref: uint64(i),
+ Labels: labels.Labels{labels.Label{"__name__", fmt.Sprintf("metric_%d", i)}},
+ },
+ }, nil)
+ testutil.Ok(t, w.Log(series))
+
+ for j := 0; j < samplesCount*10; j++ {
+ sample := enc.Samples([]tsdb.RefSample{
+ tsdb.RefSample{
+ Ref: uint64(j),
+ T: int64(i),
+ V: float64(i),
+ },
+ }, nil)
+ testutil.Ok(t, w.Log(sample))
+ }
+ }
+
+ _, _, err = w.Segments()
+ testutil.Ok(t, err)
+ wt := newWriteToMock()
+ st := timestamp.FromTime(time.Now())
+ watcher := NewWALWatcher(nil, "", wt, dir, st)
+ go watcher.Start()
+
+ expected := seriesCount * 10 * 2
+ retry(t, defaultRetryInterval, defaultRetries, func() bool {
+ return wt.checkNumLabels() >= expected
+ })
+ watcher.Stop()
+ testutil.Equals(t, expected, wt.checkNumLabels())
+}
+
+func Test_readCheckpoint(t *testing.T) {
+ pageSize := 32 * 1024
+ const seriesCount = 10
+ const samplesCount = 250
+
+ dir, err := ioutil.TempDir("", "readCheckpoint")
+ testutil.Ok(t, err)
+ defer os.RemoveAll(dir)
+
+ wdir := path.Join(dir, "wal")
+ err = os.Mkdir(wdir, 0777)
+ testutil.Ok(t, err)
+
+ os.Create(wal.SegmentName(wdir, 30))
+
+ enc := tsdb.RecordEncoder{}
+ w, err := wal.NewSize(nil, nil, wdir, 128*pageSize)
+ testutil.Ok(t, err)
+
+ // Write to the initial segment then checkpoint.
+ for i := 0; i < seriesCount*10; i++ {
+ ref := i + 100
+ series := enc.Series([]tsdb.RefSeries{
+ tsdb.RefSeries{
+ Ref: uint64(ref),
+ Labels: labels.Labels{labels.Label{"__name__", fmt.Sprintf("metric_%d", i)}},
+ },
+ }, nil)
+ testutil.Ok(t, w.Log(series))
+
+ for j := 0; j < samplesCount*10; j++ {
+ inner := rand.Intn(ref + 1)
+ sample := enc.Samples([]tsdb.RefSample{
+ tsdb.RefSample{
+ Ref: uint64(inner),
+ T: int64(i),
+ V: float64(i),
+ },
+ }, nil)
+ testutil.Ok(t, w.Log(sample))
+ }
+ }
+ tsdb.Checkpoint(w, 30, 31, func(x uint64) bool { return true }, 0)
+ w.Truncate(32)
+
+ // Start read after checkpoint, no more data written.
+ _, _, err = w.Segments()
+ testutil.Ok(t, err)
+
+ wt := newWriteToMock()
+ st := timestamp.FromTime(time.Now())
+ watcher := NewWALWatcher(nil, "", wt, dir, st)
+ go watcher.Start()
+
+ expected := seriesCount * 10
+ retry(t, defaultRetryInterval, defaultRetries, func() bool {
+ return wt.checkNumLabels() >= expected
+ })
+ watcher.Stop()
+ testutil.Equals(t, expected, wt.checkNumLabels())
+}
+
+func Test_checkpoint_seriesReset(t *testing.T) {
+ pageSize := 32 * 1024
+ const seriesCount = 10
+ const samplesCount = 250
+
+ dir, err := ioutil.TempDir("", "seriesReset")
+ testutil.Ok(t, err)
+ defer os.RemoveAll(dir)
+
+ wdir := path.Join(dir, "wal")
+ err = os.Mkdir(wdir, 0777)
+ testutil.Ok(t, err)
+
+ enc := tsdb.RecordEncoder{}
+ w, err := wal.NewSize(nil, nil, wdir, pageSize)
+ testutil.Ok(t, err)
+
+ // Write to the initial segment, then checkpoint later.
+ for i := 0; i < seriesCount*10; i++ {
+ ref := i + 100
+ series := enc.Series([]tsdb.RefSeries{
+ tsdb.RefSeries{
+ Ref: uint64(ref),
+ Labels: labels.Labels{labels.Label{"__name__", fmt.Sprintf("metric_%d", i)}},
+ },
+ }, nil)
+ testutil.Ok(t, w.Log(series))
+
+ for j := 0; j < samplesCount*10; j++ {
+ inner := rand.Intn(ref + 1)
+ sample := enc.Samples([]tsdb.RefSample{
+ tsdb.RefSample{
+ Ref: uint64(inner),
+ T: int64(i),
+ V: float64(i),
+ },
+ }, nil)
+ testutil.Ok(t, w.Log(sample))
+ }
+ }
+
+ _, _, err = w.Segments()
+ testutil.Ok(t, err)
+
+ wt := newWriteToMock()
+ st := timestamp.FromTime(time.Now())
+ watcher := NewWALWatcher(nil, "", wt, dir, st)
+ go watcher.Start()
+
+ expected := seriesCount * 10
+ retry(t, defaultRetryInterval, defaultRetries, func() bool {
+ return wt.checkNumLabels() >= expected
+ })
+ watcher.Stop()
+ testutil.Equals(t, seriesCount*10, wt.checkNumLabels())
+
+ // If you modify the checkpoint and truncate segment #'s run the test to see how
+ // many series records you end up with and change the last Equals check accordingly
+ // or modify the Equals to Assert(len(wt.seriesLabels) < seriesCount*10)
+ _, err = tsdb.Checkpoint(w, 50, 200, func(x uint64) bool { return true }, 0)
+ testutil.Ok(t, err)
+ w.Truncate(200)
+
+ cp, _, err := tsdb.LastCheckpoint(path.Join(dir, "wal"))
+ testutil.Ok(t, err)
+ err = watcher.readCheckpoint(cp)
+ testutil.Ok(t, err)
+}
+
+func Test_decodeRecord(t *testing.T) {
+ dir, err := ioutil.TempDir("", "decodeRecord")
+ testutil.Ok(t, err)
+ defer os.RemoveAll(dir)
+
+ wt := newWriteToMock()
+ // st := timestamp.FromTime(time.Now().Add(-10 * time.Second))
+ watcher := NewWALWatcher(nil, "", wt, dir, 0)
+
+ // decode a series record
+ enc := tsdb.RecordEncoder{}
+ buf := enc.Series([]tsdb.RefSeries{tsdb.RefSeries{Ref: 1234, Labels: labels.Labels{}}}, nil)
+ watcher.decodeRecord(buf)
+ testutil.Ok(t, err)
+
+ testutil.Equals(t, 1, wt.checkNumLabels())
+
+ // decode a samples record
+ buf = enc.Samples([]tsdb.RefSample{tsdb.RefSample{Ref: 100, T: 1, V: 1.0}, tsdb.RefSample{Ref: 100, T: 2, V: 2.0}}, nil)
+ watcher.decodeRecord(buf)
+ testutil.Ok(t, err)
+
+ testutil.Equals(t, 2, wt.samplesAppended)
+}
+
+func Test_decodeRecord_afterStart(t *testing.T) {
+ dir, err := ioutil.TempDir("", "decodeRecord")
+ testutil.Ok(t, err)
+ defer os.RemoveAll(dir)
+
+ wt := newWriteToMock()
+ // st := timestamp.FromTime(time.Now().Add(-10 * time.Second))
+ watcher := NewWALWatcher(nil, "", wt, dir, 1)
+
+ // decode a series record
+ enc := tsdb.RecordEncoder{}
+ buf := enc.Series([]tsdb.RefSeries{tsdb.RefSeries{Ref: 1234, Labels: labels.Labels{}}}, nil)
+ watcher.decodeRecord(buf)
+ testutil.Ok(t, err)
+
+ testutil.Equals(t, 1, wt.checkNumLabels())
+
+ // decode a samples record
+ buf = enc.Samples([]tsdb.RefSample{tsdb.RefSample{Ref: 100, T: 1, V: 1.0}, tsdb.RefSample{Ref: 100, T: 2, V: 2.0}}, nil)
+ watcher.decodeRecord(buf)
+ testutil.Ok(t, err)
+
+ testutil.Equals(t, 1, wt.samplesAppended)
+}
diff --git a/storage/remote/write.go b/storage/remote/write.go
index 93beca2f5b..f44662af1f 100644
--- a/storage/remote/write.go
+++ b/storage/remote/write.go
@@ -14,44 +14,53 @@
package remote
import (
- "github.com/prometheus/common/model"
"github.com/prometheus/prometheus/pkg/labels"
"github.com/prometheus/prometheus/storage"
)
// Appender implements scrape.Appendable.
func (s *Storage) Appender() (storage.Appender, error) {
- return s, nil
+ return ×tampTracker{
+ storage: s,
+ }, nil
+}
+
+type timestampTracker struct {
+ storage *Storage
+ samples int64
+ highestTimestamp int64
}
// Add implements storage.Appender.
-func (s *Storage) Add(l labels.Labels, t int64, v float64) (uint64, error) {
- s.mtx.RLock()
- defer s.mtx.RUnlock()
- for _, q := range s.queues {
- if err := q.Append(&model.Sample{
- Metric: labelsToMetric(l),
- Timestamp: model.Time(t),
- Value: model.SampleValue(v),
- }); err != nil {
- panic(err) // QueueManager.Append() should always return nil as per doc string.
- }
+func (t *timestampTracker) Add(_ labels.Labels, ts int64, v float64) (uint64, error) {
+ t.samples++
+ if ts > t.highestTimestamp {
+ t.highestTimestamp = ts
}
return 0, nil
}
// AddFast implements storage.Appender.
-func (s *Storage) AddFast(l labels.Labels, _ uint64, t int64, v float64) error {
- _, err := s.Add(l, t, v)
+func (t *timestampTracker) AddFast(l labels.Labels, _ uint64, ts int64, v float64) error {
+ _, err := t.Add(l, ts, v)
return err
}
// Commit implements storage.Appender.
-func (*Storage) Commit() error {
+func (t *timestampTracker) Commit() error {
+ t.storage.samplesIn.incr(t.samples)
+ t.storage.samplesInMetric.Add(float64(t.samples))
+
+ t.storage.highestTimestampMtx.Lock()
+ defer t.storage.highestTimestampMtx.Unlock()
+ if t.highestTimestamp > t.storage.highestTimestamp {
+ t.storage.highestTimestamp = t.highestTimestamp
+ t.storage.highestTimestampMetric.Set(float64(t.highestTimestamp))
+ }
return nil
}
// Rollback implements storage.Appender.
-func (*Storage) Rollback() error {
+func (*timestampTracker) Rollback() error {
return nil
}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 625f27137b..d9b7f92626 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -243,12 +243,12 @@ github.com/prometheus/procfs/xfs
github.com/prometheus/procfs/internal/util
# github.com/prometheus/tsdb v0.4.0
github.com/prometheus/tsdb
+github.com/prometheus/tsdb/fileutil
+github.com/prometheus/tsdb/wal
github.com/prometheus/tsdb/labels
github.com/prometheus/tsdb/chunkenc
github.com/prometheus/tsdb/chunks
-github.com/prometheus/tsdb/fileutil
github.com/prometheus/tsdb/index
-github.com/prometheus/tsdb/wal
# github.com/samuel/go-zookeeper v0.0.0-20161028232340-1d7be4effb13
github.com/samuel/go-zookeeper/zk
# github.com/sasha-s/go-deadlock v0.0.0-20161201235124-341000892f3d
diff --git a/web/api/v1/api_test.go b/web/api/v1/api_test.go
index 0efdd32d34..05043138e6 100644
--- a/web/api/v1/api_test.go
+++ b/web/api/v1/api_test.go
@@ -33,6 +33,7 @@ import (
"github.com/go-kit/kit/log"
"github.com/gogo/protobuf/proto"
"github.com/golang/snappy"
+ "github.com/prometheus/client_golang/prometheus"
config_util "github.com/prometheus/common/config"
"github.com/prometheus/common/model"
"github.com/prometheus/common/promlog"
@@ -279,9 +280,14 @@ func TestEndpoints(t *testing.T) {
Format: &af,
}
- remote := remote.NewStorage(promlog.New(&promlogConfig), func() (int64, error) {
+ dbDir, err := ioutil.TempDir("", "tsdb-api-ready")
+ testutil.Ok(t, err)
+ defer os.RemoveAll(dbDir)
+
+ testutil.Ok(t, err)
+ remote := remote.NewStorage(promlog.New(&promlogConfig), prometheus.DefaultRegisterer, func() (int64, error) {
return 0, nil
- }, 1*time.Second)
+ }, dbDir, 1*time.Second)
err = remote.ApplyConfig(&config.Config{
RemoteReadConfigs: []*config.RemoteReadConfig{
diff --git a/web/ui/assets_vfsdata.go b/web/ui/assets_vfsdata.go
index fd242177be..7e51f008fd 100644
--- a/web/ui/assets_vfsdata.go
+++ b/web/ui/assets_vfsdata.go
@@ -128,9 +128,9 @@ var Assets = func() http.FileSystem {
"/static/js/graph/index.js": &vfsgen۰CompressedFileInfo{
name: "index.js",
modTime: time.Date(1970, 1, 1, 0, 0, 1, 0, time.UTC),
- uncompressedSize: 35311,
+ uncompressedSize: 35376,
- compressedContent: 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},
"/static/js/prom_console.js": &vfsgen۰CompressedFileInfo{
name: "prom_console.js",
@@ -142,9 +142,9 @@ var Assets = func() http.FileSystem {
"/static/js/targets.js": &vfsgen۰CompressedFileInfo{
name: "targets.js",
modTime: time.Date(1970, 1, 1, 0, 0, 1, 0, time.UTC),
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},
"/static/vendor": &vfsgen۰DirInfo{
name: "vendor",
@@ -680,9 +680,9 @@ var Assets = func() http.FileSystem {
"/templates/targets.html": &vfsgen۰CompressedFileInfo{
name: "targets.html",
modTime: time.Date(1970, 1, 1, 0, 0, 1, 0, time.UTC),
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},
}
fs["/"].(*vfsgen۰DirInfo).entries = []os.FileInfo{
diff --git a/web/ui/static/js/graph/index.js b/web/ui/static/js/graph/index.js
index c81f3975f3..4ce5c17747 100644
--- a/web/ui/static/js/graph/index.js
+++ b/web/ui/static/js/graph/index.js
@@ -62,6 +62,12 @@ Prometheus.Graph.prototype.initialize = function() {
var graphWrapper = self.el.find("#graph_wrapper" + self.id);
self.queryForm = graphWrapper.find(".query_form");
+ // Auto-resize the text area on input or mouseclick
+ var resizeTextarea = function(el) {
+ var offset = el.offsetHeight - el.clientHeight;
+ $(el).css('height', 'auto').css('height', el.scrollHeight + offset);
+ };
+
self.expr = graphWrapper.find("textarea[name=expr]");
self.expr.keypress(function(e) {
const enter = 13;
@@ -69,14 +75,13 @@ Prometheus.Graph.prototype.initialize = function() {
self.queryForm.submit();
e.preventDefault();
}
-
- // Auto-resize the text area on input.
- var offset = this.offsetHeight - this.clientHeight;
- var resizeTextarea = function(el) {
- $(el).css('height', 'auto').css('height', el.scrollHeight + offset);
- };
$(this).on('keyup input', function() { resizeTextarea(this); });
});
+
+ self.expr.click(function(e) {
+ resizeTextarea(this);
+ });
+
self.expr.change(self.handleChange);
self.rangeInput = self.queryForm.find("input[name=range_input]");
diff --git a/web/ui/static/js/targets.js b/web/ui/static/js/targets.js
index b6cfe2660f..c92139d8be 100644
--- a/web/ui/static/js/targets.js
+++ b/web/ui/static/js/targets.js
@@ -21,6 +21,14 @@ function showUnhealthy(_, container) {
}
function init() {
+ if (!localStorage.selectedTab || localStorage.selectedTab == "all-targets"){
+ $("#all-targets").parent().addClass("active");
+ $(".table-container").each(showAll);
+ } else if (localStorage.selectedTab == "unhealthy-targets") {
+ $("#unhealthy-targets").parent().addClass("active");
+ $(".table-container").each(showUnhealthy);
+ }
+
$("button.targets").click(function () {
const tableTitle = $(this).closest("h2").find("a").attr("id");
@@ -45,8 +53,10 @@ function init() {
if (target === "all-targets") {
$(".table-container").each(showAll);
+ localStorage.setItem("selectedTab", "all-targets");
} else if (target === "unhealthy-targets") {
$(".table-container").each(showUnhealthy);
+ localStorage.setItem("selectedTab", "unhealthy-targets");
}
});
}
diff --git a/web/ui/templates/targets.html b/web/ui/templates/targets.html
index 2b3987ac3c..2a19004d52 100644
--- a/web/ui/templates/targets.html
+++ b/web/ui/templates/targets.html
@@ -8,7 +8,7 @@
<div class="container-fluid">
<h1>Targets</h1>
<div id="showTargets" class="btn-group btn-group-toggle" data-toggle="buttons">
- <label class="btn btn-primary active">
+ <label class="btn btn-primary">
<input type="radio" name="targets" id="all-targets" autocomplete="off" checked> All
</label>
<label class="btn btn-primary ml-1">
diff --git a/web/web_test.go b/web/web_test.go
index 4c8ec63ecc..06115aaa04 100644
--- a/web/web_test.go
+++ b/web/web_test.go
@@ -25,6 +25,10 @@ import (
"testing"
"time"
+ "github.com/prometheus/prometheus/config"
+ "github.com/prometheus/prometheus/notifier"
+ "github.com/prometheus/prometheus/rules"
+ "github.com/prometheus/prometheus/scrape"
"github.com/prometheus/prometheus/storage/tsdb"
"github.com/prometheus/prometheus/util/testutil"
libtsdb "github.com/prometheus/tsdb"
@@ -101,8 +105,8 @@ func TestReadyAndHealthy(t *testing.T) {
Context: nil,
Storage: &tsdb.ReadyStorage{},
QueryEngine: nil,
- ScrapeManager: nil,
- RuleManager: nil,
+ ScrapeManager: &scrape.Manager{},
+ RuleManager: &rules.Manager{},
Notifier: nil,
RoutePrefix: "/",
EnableAdminAPI: true,
@@ -118,6 +122,10 @@ func TestReadyAndHealthy(t *testing.T) {
opts.Flags = map[string]string{}
webHandler := New(nil, opts)
+
+ webHandler.config = &config.Config{}
+ webHandler.notifier = ¬ifier.Manager{}
+
go func() {
err := webHandler.Run(context.Background())
if err != nil {
@@ -159,6 +167,46 @@ func TestReadyAndHealthy(t *testing.T) {
testutil.Ok(t, err)
testutil.Equals(t, http.StatusServiceUnavailable, resp.StatusCode)
+ resp, err = http.Get("http://localhost:9090/graph")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusServiceUnavailable, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/alerts")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusServiceUnavailable, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/flags")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusServiceUnavailable, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/rules")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusServiceUnavailable, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/service-discovery")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusServiceUnavailable, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/targets")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusServiceUnavailable, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/config")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusServiceUnavailable, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/status")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusServiceUnavailable, resp.StatusCode)
+
// Set to ready.
webHandler.Ready()
@@ -191,6 +239,41 @@ func TestReadyAndHealthy(t *testing.T) {
testutil.Ok(t, err)
testutil.Equals(t, http.StatusOK, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/alerts")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusOK, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/flags")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusOK, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/rules")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusOK, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/service-discovery")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusOK, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/targets")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusOK, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/config")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusOK, resp.StatusCode)
+
+ resp, err = http.Get("http://localhost:9090/status")
+
+ testutil.Ok(t, err)
+ testutil.Equals(t, http.StatusOK, resp.StatusCode)
}
func TestRoutePrefix(t *testing.T) {