ClusterCockpit/cc-metric-collector
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cc-metric-collector/collectors/iostatMetric.md
brinkcoder f2f38c81af
Add exclude_devices to iostat (#133) 
* Check creation of CCMessage in NATS receiver

* add exclude_device for iostatMetric

* add md file

---------

Co-authored-by: Thomas Roehl <thomas.roehl@fau.de>
Co-authored-by: exterr2f <Robert.Externbrink@rub.de>
Co-authored-by: Thomas Gruber <Thomas.Roehl@googlemail.com>
2025-02-19 11:34:56 +01:00

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iostat collector

  "iostat": {
    "exclude_metrics": [
      "io_read_ms"
    ],
    "exclude_devices": [
      "nvme0n1p1",
      "nvme0n1p2",
      "md127"
    ]
  }

The iostat collector reads data from /proc/diskstats and outputs a handful node metrics. If a metric or device 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