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Refactor NFS client collector (#816)

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* Update vendor github.com/prometheus/procfs/...

* Refactor NFS collector

Use new procfs library to parse NFS client stats.

* Ignore nfs proc file not existing.

* Refactor with reflection to walk the structs.
This commit is contained in:
Ben Kochie 2018-02-15 13:40:38 +01:00 • committed by GitHub
commit 01bd99fb1a
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5 changed files with 202 additions and 156 deletions
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13
vendor/github.com/prometheus/procfs/nfs/parse.go generated vendored
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@ -178,8 +178,17 @@ func parseV3Stats(v []uint64) (V3Stats, error) {
func parseClientV4Stats(v []uint64) (ClientV4Stats, error) {
values := int(v[0])
if len(v[1:]) != values || values < 59 {
return ClientV4Stats{}, fmt.Errorf("invalid V4Stats line %q", v)
if len(v[1:]) != values {
return ClientV4Stats{}, fmt.Errorf("invalid ClientV4Stats line %q", v)
}
// This function currently supports mapping 59 NFS v4 client stats. Older
// kernels may emit fewer stats, so we must detect this and pad out the
// values to match the expected slice size.
if values < 59 {
newValues := make([]uint64, 60)
copy(newValues, v)
v = newValues
}
return ClientV4Stats{