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Enable IPVS collector by default (#623) 

* Silence error output when no IPVS present.
* Enable by default.
* Update end-to-end fixture.
* Update README.
This commit is contained in:
Ben Kochie 2017-07-26 15:20:28 +02:00 committed by GitHub
parent efe5f62717
commit 46c31d8a7e
5 changed files with 56 additions and 2 deletions
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2
README.md
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@ -33,6 +33,7 @@ filefd | Exposes file descriptor statistics from `/proc/sys/fs/file-nr`. | Linux
filesystem | Exposes filesystem statistics, such as disk space used. | Darwin, Dragonfly, FreeBSD, Linux, OpenBSD
hwmon | Expose hardware monitoring and sensor data from `/sys/class/hwmon/`. | Linux
infiniband | Exposes network statistics specific to InfiniBand configurations. | Linux
ipvs | Exposes IPVS status from `/proc/net/ip_vs` and stats from `/proc/net/ip_vs_stats`. | Linux
loadavg | Exposes load average. | Darwin, Dragonfly, FreeBSD, Linux, NetBSD, OpenBSD, Solaris
mdadm | Exposes statistics about devices in `/proc/mdstat` (does nothing if no `/proc/mdstat` present). | Linux
meminfo | Exposes memory statistics. | Darwin, Dragonfly, FreeBSD, Linux
@ -57,7 +58,6 @@ buddyinfo | Exposes statistics of memory fragments as reported by /proc/buddyinf
devstat | Exposes device statistics | Dragonfly, FreeBSD
drbd | Exposes Distributed Replicated Block Device statistics | Linux
interrupts | Exposes detailed interrupts statistics. | Linux, OpenBSD
ipvs | Exposes IPVS status from `/proc/net/ip_vs` and stats from `/proc/net/ip_vs_stats`. | Linux
ksmd | Exposes kernel and system statistics from `/sys/kernel/mm/ksm`. | Linux
logind | Exposes session counts from [logind](http://www.freedesktop.org/wiki/Software/systemd/logind/). | Linux
meminfo\_numa | Exposes memory statistics from `/proc/meminfo_numa`. | Linux

46
collector/fixtures/e2e-output.txt
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@ -862,6 +862,51 @@ node_infiniband_unicast_packets_transmitted_total{device="mlx4_0",port="2"} 0
# HELP node_intr Total number of interrupts serviced.
# TYPE node_intr counter
node_intr 8.885917e+06
# HELP node_ipvs_backend_connections_active The current active connections by local and remote address.
# TYPE node_ipvs_backend_connections_active gauge
node_ipvs_backend_connections_active{local_address="192.168.0.22",local_port="3306",proto="TCP",remote_address="192.168.82.22",remote_port="3306"} 248
node_ipvs_backend_connections_active{local_address="192.168.0.22",local_port="3306",proto="TCP",remote_address="192.168.83.21",remote_port="3306"} 248
node_ipvs_backend_connections_active{local_address="192.168.0.22",local_port="3306",proto="TCP",remote_address="192.168.83.24",remote_port="3306"} 248
node_ipvs_backend_connections_active{local_address="192.168.0.55",local_port="3306",proto="TCP",remote_address="192.168.49.32",remote_port="3306"} 0
node_ipvs_backend_connections_active{local_address="192.168.0.55",local_port="3306",proto="TCP",remote_address="192.168.50.26",remote_port="3306"} 0
node_ipvs_backend_connections_active{local_address="192.168.0.57",local_port="3306",proto="TCP",remote_address="192.168.50.21",remote_port="3306"} 1498
node_ipvs_backend_connections_active{local_address="192.168.0.57",local_port="3306",proto="TCP",remote_address="192.168.82.21",remote_port="3306"} 1499
node_ipvs_backend_connections_active{local_address="192.168.0.57",local_port="3306",proto="TCP",remote_address="192.168.84.22",remote_port="3306"} 0
# HELP node_ipvs_backend_connections_inactive The current inactive connections by local and remote address.
# TYPE node_ipvs_backend_connections_inactive gauge
node_ipvs_backend_connections_inactive{local_address="192.168.0.22",local_port="3306",proto="TCP",remote_address="192.168.82.22",remote_port="3306"} 2
node_ipvs_backend_connections_inactive{local_address="192.168.0.22",local_port="3306",proto="TCP",remote_address="192.168.83.21",remote_port="3306"} 1
node_ipvs_backend_connections_inactive{local_address="192.168.0.22",local_port="3306",proto="TCP",remote_address="192.168.83.24",remote_port="3306"} 2
node_ipvs_backend_connections_inactive{local_address="192.168.0.55",local_port="3306",proto="TCP",remote_address="192.168.49.32",remote_port="3306"} 0
node_ipvs_backend_connections_inactive{local_address="192.168.0.55",local_port="3306",proto="TCP",remote_address="192.168.50.26",remote_port="3306"} 0
node_ipvs_backend_connections_inactive{local_address="192.168.0.57",local_port="3306",proto="TCP",remote_address="192.168.50.21",remote_port="3306"} 0
node_ipvs_backend_connections_inactive{local_address="192.168.0.57",local_port="3306",proto="TCP",remote_address="192.168.82.21",remote_port="3306"} 0
node_ipvs_backend_connections_inactive{local_address="192.168.0.57",local_port="3306",proto="TCP",remote_address="192.168.84.22",remote_port="3306"} 0
# HELP node_ipvs_backend_weight The current backend weight by local and remote address.
# TYPE node_ipvs_backend_weight gauge
node_ipvs_backend_weight{local_address="192.168.0.22",local_port="3306",proto="TCP",remote_address="192.168.82.22",remote_port="3306"} 100
node_ipvs_backend_weight{local_address="192.168.0.22",local_port="3306",proto="TCP",remote_address="192.168.83.21",remote_port="3306"} 100
node_ipvs_backend_weight{local_address="192.168.0.22",local_port="3306",proto="TCP",remote_address="192.168.83.24",remote_port="3306"} 100
node_ipvs_backend_weight{local_address="192.168.0.55",local_port="3306",proto="TCP",remote_address="192.168.49.32",remote_port="3306"} 100
node_ipvs_backend_weight{local_address="192.168.0.55",local_port="3306",proto="TCP",remote_address="192.168.50.26",remote_port="3306"} 0
node_ipvs_backend_weight{local_address="192.168.0.57",local_port="3306",proto="TCP",remote_address="192.168.50.21",remote_port="3306"} 100
node_ipvs_backend_weight{local_address="192.168.0.57",local_port="3306",proto="TCP",remote_address="192.168.82.21",remote_port="3306"} 100
node_ipvs_backend_weight{local_address="192.168.0.57",local_port="3306",proto="TCP",remote_address="192.168.84.22",remote_port="3306"} 0
# HELP node_ipvs_connections_total The total number of connections made.
# TYPE node_ipvs_connections_total counter
node_ipvs_connections_total 2.3765872e+07
# HELP node_ipvs_incoming_bytes_total The total amount of incoming data.
# TYPE node_ipvs_incoming_bytes_total counter
node_ipvs_incoming_bytes_total 8.9991519156915e+13
# HELP node_ipvs_incoming_packets_total The total number of incoming packets.
# TYPE node_ipvs_incoming_packets_total counter
node_ipvs_incoming_packets_total 3.811989221e+09
# HELP node_ipvs_outgoing_bytes_total The total amount of outgoing data.
# TYPE node_ipvs_outgoing_bytes_total counter
node_ipvs_outgoing_bytes_total 0
# HELP node_ipvs_outgoing_packets_total The total number of outgoing packets.
# TYPE node_ipvs_outgoing_packets_total counter
node_ipvs_outgoing_packets_total 0
# HELP node_ksmd_full_scans_total ksmd 'full_scans' file.
# TYPE node_ksmd_full_scans_total counter
node_ksmd_full_scans_total 323
@ -2505,6 +2550,7 @@ node_scrape_collector_success{collector="entropy"} 1
node_scrape_collector_success{collector="filefd"} 1
node_scrape_collector_success{collector="hwmon"} 1
node_scrape_collector_success{collector="infiniband"} 1
node_scrape_collector_success{collector="ipvs"} 1
node_scrape_collector_success{collector="ksmd"} 1
node_scrape_collector_success{collector="loadavg"} 1
node_scrape_collector_success{collector="mdadm"} 1

7
collector/ipvs_linux.go
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@ -17,9 +17,11 @@ package collector
import (
"fmt"
"os"
"strconv"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/log"
"github.com/prometheus/procfs"
)
@ -106,6 +108,11 @@ func newIPVSCollector() (*ipvsCollector, error) {
func (c *ipvsCollector) Update(ch chan<- prometheus.Metric) error {
ipvsStats, err := c.fs.NewIPVSStats()
if err != nil {
// Cannot access ipvs metrics, report no error.
if os.IsNotExist(err) {
log.Debug("ipvs collector metrics are not available for this system")
return nil
}
return fmt.Errorf("could not get IPVS stats: %s", err)
}
ch <- c.connections.mustNewConstMetric(float64(ipvsStats.Connections))

1
end-to-end-test.sh
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@ -15,6 +15,7 @@ collectors=$(cat << COLLECTORS
filefd
hwmon
infiniband
ipvs
ksmd
loadavg
mdadm

2
node_exporter.go
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@ -32,7 +32,7 @@ import (
)
const (
defaultCollectors = "arp,bcache,conntrack,cpu,diskstats,entropy,edac,exec,filefd,filesystem,hwmon,infiniband,loadavg,mdadm,meminfo,netdev,netstat,sockstat,stat,textfile,time,uname,vmstat,wifi,xfs,zfs"
defaultCollectors = "arp,bcache,conntrack,cpu,diskstats,entropy,edac,exec,filefd,filesystem,hwmon,infiniband,ipvs,loadavg,mdadm,meminfo,netdev,netstat,sockstat,stat,textfile,time,uname,vmstat,wifi,xfs,zfs"
)
var (