Merge pull request #59 from prometheus/feature/snappy
Include Snappy in Runtime.
This commit is contained in:
Tobias Schmidt
commit
af487c85e3
3
Makefile
3
Makefile
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@ -11,7 +11,7 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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TEST_ARTIFACTS = prometheus search_index
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TEST_ARTIFACTS = prometheus prometheus.build search_index
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all: test
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@ -21,6 +21,7 @@ test: build
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build:
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$(MAKE) -C model
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go build ./...
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go build -o prometheus.build
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clean:
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rm -rf $(TEST_ARTIFACTS)
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@ -14,6 +14,7 @@
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GO_VERSION := 1.0.3
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LEVELDB_VERSION := 1.7.0
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PROTOCOL_BUFFERS_VERSION := 2.4.1
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SNAPPY_VERSION := 1.0.5
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OVERLAY_ROOT := ${HOME}/overlay_root
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@ -24,7 +25,7 @@ export CFLAGS := $(CFLAGS) -I$(OVERLAY_ROOT)/include
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export CXXFLAGS := $(CXXFLAGS) -I$(OVERLAY_ROOT)/include
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export CPPFLAGS := $(CPPFLAGS) -I$(OVERLAY_ROOT)/include
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export LDFLAGS := $(LDFLAGS) -L$(OVERLAY_ROOT)/lib
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export CGO_CFLAGS := $(CFLAGS)
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export CGO_CFLAGS := $(CFLAGS) -lsnappy
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export CGO_LDFLAGS := $(LDFLAGS)
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GO_GET := go get -u -v -x
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@ -114,7 +115,7 @@ instrumentation-stamp: go source
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leveldb: leveldb-stamp
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leveldb-stamp: cc rsync leveldb-$(LEVELDB_VERSION).tar.gz overlay
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leveldb-stamp: cc rsync leveldb-$(LEVELDB_VERSION).tar.gz snappy overlay
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tar xzvf leveldb-$(LEVELDB_VERSION).tar.gz
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$(MAKE) -C leveldb-$(LEVELDB_VERSION)
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rsync -av "leveldb-$(LEVELDB_VERSION)/include/" "$(OVERLAY_ROOT)/include/"
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@ -128,7 +129,7 @@ leveldb-$(LEVELDB_VERSION).tar.gz: wget
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levigo: levigo-stamp
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levigo-stamp: leveldb go source
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levigo-stamp: leveldb go snappy source
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$(GO_GET) github.com/jmhodges/levigo
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touch $@
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@ -141,9 +142,23 @@ test: test-stamp
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test-stamp: preparation source
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cd ${GOPATH}/src/github.com/prometheus
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$(MAKE) build
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$(MAKE) test
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touch $@
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snappy-$(SNAPPY_VERSION).tar.gz: wget
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$(WGET) http://snappy.googlecode.com/files/snappy-$(SNAPPY_VERSION).tar.gz
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tar xzvf snappy-$(SNAPPY_VERSION).tar.gz
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cd snappy-$(SNAPPY_VERSION) && ./configure --prefix="$(OVERLAY_ROOT)"
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$(MAKE) -C snappy-$(SNAPPY_VERSION)
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$(MAKE) -C snappy-$(SNAPPY_VERSION) install
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snappy: snappy-stamp
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tar xzvf snappy-$(SNAPPY_VERSION).tar.gz
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snappy-stamp: cc overlay rsync snappy-$(SNAPPY_VERSION).tar.gz
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touch $@
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source: source-stamp
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source-stamp:
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@ -156,8 +171,10 @@ clean:
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-rm -rf "$(OVERLAY_ROOT)"
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-rm -rf leveldb-$(LEVELDB_VERSION)
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-rm -rf protobuf-$(PROTOCOL_BUFFERS_VERSION)
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-rm -rf snappy-$(SNAPPY_VERSION)
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-rm leveldb-$(LEVELDB_VERSION).tar.gz
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-rm protobuf-$(PROTOCOL_BUFFERS_VERSION).tar.bz2
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-rm snappy-$(SNAPPY_VERSION).tar.gz
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.PHONY: all bison build-dependencies cc clean go goprotobuf gorest instrumentation leveldb levigo mercurial overlay preparation protoc rsync source test wget
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.PHONY: all bison build-dependencies cc clean go goprotobuf gorest instrumentation leveldb levigo mercurial overlay preparation protoc rsync snappy source test wget
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@ -22,6 +22,7 @@ action if some condition is observed to be true.
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5. Levigo, a Go-wrapper around LevelDB's C library: (https://github.com/jmhodges/levigo).
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6. GoRest, a RESTful style web-services framework: (http://code.google.com/p/gorest/).
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7. Prometheus Client, Prometheus in Prometheus (https://github.com/matttproud/golang_instrumentation).
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8. Snappy, a compression library for LevelDB and Levigo (code.google.com/p/snappy/).
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## Getting started
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@ -22,7 +22,9 @@ import (
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)
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var (
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leveldbFlushOnMutate = flag.Bool("leveldbFlushOnMutate", true, "Whether LevelDB should flush every operation to disk upon mutation before returning (bool).")
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leveldbFlushOnMutate = flag.Bool("leveldbFlushOnMutate", true, "Whether LevelDB should flush every operation to disk upon mutation before returning (bool).")
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leveldbUseSnappy = flag.Bool("leveldbUseSnappy", true, "Whether LevelDB attempts to use Snappy for compressing elements (bool).")
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leveldbUseParanoidChecks = flag.Bool("leveldbUseParanoidChecks", true, "Whether LevelDB uses expensive checks (bool).")
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)
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type LevelDBPersistence struct {
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@ -44,7 +46,12 @@ type iteratorCloser struct {
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func NewLevelDBPersistence(storageRoot string, cacheCapacity, bitsPerBloomFilterEncoded int) (p *LevelDBPersistence, err error) {
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options := levigo.NewOptions()
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options.SetCreateIfMissing(true)
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options.SetParanoidChecks(true)
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options.SetParanoidChecks(*leveldbUseParanoidChecks)
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compression := levigo.NoCompression
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if *leveldbUseSnappy {
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compression = levigo.SnappyCompression
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}
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options.SetCompression(compression)
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cache := levigo.NewLRUCache(cacheCapacity)
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options.SetCache(cache)
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