ClusterCockpit/cc-metric-collector
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cc-metric-collector/collectors/iostatMetric.md
Thomas Gruber 435528fa97
Split diskstat Collector (#38) 
* Split diskstats (free, total space) and iostats (reads, writes, ...

* Add iostat Collector to CollectorManager
2022-02-21 12:44:26 +01:00

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iostat collector

  "iostat": {
    "exclude_metrics": [
      "read_ms"
    ],
  }

The iostat collector reads data from /proc/diskstats and outputs a handful node metrics. If a metric is not required, it can be excluded from forwarding it to the sink.

Metrics:

  • io_reads
  • io_reads_merged
  • io_read_sectors
  • io_read_ms
  • io_writes
  • io_writes_merged
  • io_writes_sectors
  • io_writes_ms
  • io_ioops
  • io_ioops_ms
  • io_ioops_weighted_ms
  • io_discards
  • io_discards_merged
  • io_discards_sectors
  • io_discards_ms
  • io_flushes
  • io_flushes_ms

The device name is added as tag device. For more details, see https://www.kernel.org/doc/html/latest/admin-guide/iostats.html