ClusterCockpit/cc-metric-collector
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cc-metric-collector/collectors/nfsiostatMetric.md
Thomas Gruber a1f4dd6a6c
NFS I/O Stats Collector (#91) 
* Initial version

* Delete values for vanished mount points and  comments
2022-12-14 16:52:53 +01:00

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nfsiostat collector

  "nfsiostat": {
    "exclude_metrics": [
      "nfsio_oread"
    ],
    "exclude_filesystems" : [
        "/mnt",
    ],
    "use_server_as_stype": false
  }

The nfsiostat collector reads data from /proc/self/mountstats and outputs a handful node metrics for each NFS filesystem. If a metric or filesystem is not required, it can be excluded from forwarding it to the sink.

Metrics:

  • nfsio_nread: Bytes transferred by normal read() calls
  • nfsio_nwrite: Bytes transferred by normal write() calls
  • nfsio_oread: Bytes transferred by read() calls with O_DIRECT
  • nfsio_owrite: Bytes transferred by write() calls with O_DIRECT
  • nfsio_pageread: Pages transferred by read() calls
  • nfsio_pagewrite: Pages transferred by write() calls
  • nfsio_nfsread: Bytes transferred for reading from the server
  • nfsio_nfswrite: Pages transferred by writing to the server

The nfsiostat collector adds the mountpoint to the tags as stype=filesystem,stype-id=<mountpoint>. If the server address should be used instead of the mountpoint, use the use_server_as_stype config setting.