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Add a collector for NFS client statistics.

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This change adds a new collector called "nfs" that parses the contents
of /proc/net/rpc/nfs and turns it into metrics. It can be used to
inspect the number of operations per type, but also to keep an eye on an
extraneous number of retransmissions, which may indicate connectivity
issues.

I've picked the name "nfs", as most operating systems use "nfs" for the
client component and "nfsd" as the server component. If we want to add
stats for the NFS server as well, we'd better call such a collector
"nfsd".
This commit is contained in:
Ed Schouten 2016-11-29 14:32:52 +01:00 • committed by Ed Schouten
commit a696830c38
5 changed files with 289 additions and 0 deletions
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collector/fixtures/proc/net/rpc/nfs Normal file
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net 70 70 69 45
rpc 1218785755 374636 1218815394
proc2 18 16 57 74 52 71 73 45 86 0 52 83 61 17 53 50 23 70 82
proc3 22 0 1061909262 48906 4077635 117661341 5 29391916 2570425 2993289 590 0 0 7815 15 1130 0 3983 92385 13332 2 1 23729
proc4 48 98 51 54 83 85 23 24 1 28 73 68 83 12 84 39 68 59 58 88 29 74 69 96 21 84 15 53 86 54 66 56 97 36 49 32 85 81 11 58 32 67 13 28 35 90 1 26 0