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ZFS Collector: Add dmu_tx functionality

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Signed-Off-By: Joe Handzik <joseph.t.handzik@hpe.com>
This commit is contained in:
Joe Handzik 2017-01-23 12:56:43 -06:00
commit 94fb93a9f3
5 changed files with 120 additions and 8 deletions
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19
collector/zfs_linux.go
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@ -29,6 +29,7 @@ import (
const (
zfsProcpathBase = "spl/kstat/zfs/"
zfsArcstatsExt = "arcstats"
zfsDmuTxExt = "dmu_tx"
zfsFmExt = "fm"
zfsFetchstatsExt = "zfetchstats"
zfsVdevCacheStatsExt = "vdev_cache_stats"
@ -117,7 +118,19 @@ func (c *zfsCollector) updateFm(ch chan<- prometheus.Metric) (err error) {
})
}
func (c *zfsCollector) parseProcfsFile(reader io.Reader, fmt_ext string, handler func(zfsSysctl, zfsMetricValue)) (err error) {
func (c *zfsCollector) updateDmuTx(ch chan<- prometheus.Metric) (err error) {
file, err := c.openProcFile(filepath.Join(zfsProcpathBase, zfsDmuTxExt))
if err != nil {
return err
}
defer file.Close()
return c.parseProcfsFile(file, zfsDmuTxExt, func(s zfsSysctl, v zfsMetricValue) {
ch <- c.constSysctlMetric(dmuTx, s, v)
})
}
func (c *zfsCollector) parseProcfsFile(reader io.Reader, fmtExt string, handler func(zfsSysctl, zfsMetricValue)) (err error) {
scanner := bufio.NewScanner(reader)
parseLine := false
@ -135,7 +148,7 @@ func (c *zfsCollector) parseProcfsFile(reader io.Reader, fmt_ext string, handler
continue
}
key := fmt.Sprintf("kstat.zfs.misc.%s.%s", fmt_ext, parts[0])
key := fmt.Sprintf("kstat.zfs.misc.%s.%s", fmtExt, parts[0])
value, err := strconv.Atoi(parts[2])
if err != nil {
@ -145,7 +158,7 @@ func (c *zfsCollector) parseProcfsFile(reader io.Reader, fmt_ext string, handler
}
if !parseLine {
return fmt.Errorf("did not parse a single %q metric", fmt_ext)
return fmt.Errorf("did not parse a single %q metric", fmtExt)
}
return scanner.Err()