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  1. HBase
  2. HBASE-6974

Metric for blocked updates

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • None
    • 0.94.3, 0.95.0
    • None
    • None
    • Reviewed

    Description

      When the disc subsystem cannot keep up with a sustained high write load, a region will eventually block updates to throttle clients.
      (HRegion.checkResources).

      It would be nice to have a metric for this, so that these occurrences can be tracked.

      Attachments

        1. 6974-v5.txt
          8 kB
          Lars Hofhansl
        2. HBASE-6974.patch
          5 kB
          Michael Drzal
        3. HBASE-6974-v2.patch
          8 kB
          Michael Drzal
        4. HBASE-6974-v3.patch
          8 kB
          Michael Drzal
        5. HBASE-6974-v4.patch
          9 kB
          Michael Drzal

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. HBASE-9731 updatesBlockedSeconds RegionServer metric should not be a histogram

          • Major - Major loss of function.
          • Closed
          There are no Sub-Tasks for this issue.

          Activity

            People

              mdrzal Michael Drzal
              larsh Lars Hofhansl
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              Dates

                Created:
                Updated:
                Resolved: