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Add support for additional metrics on Linux in zfs input (#3565)

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This commit is contained in:
Richard Elling
2018-01-03 17:45:48 -08:00
committed by Daniel Nelson
parent 1ea8d648dc
commit f13afea7d9
4 changed files with 261 additions and 45 deletions
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11
plugins/inputs/zfs/zfs_linux.go
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@@ -80,7 +80,11 @@ func gatherPoolStats(pool poolInfo, acc telegraf.Accumulator) error {
func (z *Zfs) Gather(acc telegraf.Accumulator) error {
kstatMetrics := z.KstatMetrics
if len(kstatMetrics) == 0 {
kstatMetrics = []string{"arcstats", "zfetchstats", "vdev_cache_stats"}
// vdev_cache_stats is deprecated
// xuio_stats are ignored because as of Sep-2016, no known
// consumers of xuio exist on Linux
kstatMetrics = []string{"abdstats", "arcstats", "dnodestats", "dbufcachestats",
"dmu_tx", "fm", "vdev_mirror_stats", "zfetchstats", "zil"}
}
kstatPath := z.KstatPath
@@ -104,7 +108,7 @@ func (z *Zfs) Gather(acc telegraf.Accumulator) error {
for _, metric := range kstatMetrics {
lines, err := internal.ReadLines(kstatPath + "/" + metric)
if err != nil {
return err
continue
}
for i, line := range lines {
if i == 0 || i == 1 {
@@ -115,6 +119,9 @@ func (z *Zfs) Gather(acc telegraf.Accumulator) error {
}
rawData := strings.Split(line, " ")
key := metric + "_" + rawData[0]
if metric == "zil" || metric == "dmu_tx" || metric == "dnodestats" {
key = rawData[0]
}
rawValue := rawData[len(rawData)-1]
value, _ := strconv.ParseInt(rawValue, 10, 64)
fields[key] = value