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  1. HBase
  2. HBASE-4274

RS should periodically ping its HLog pipeline even if no writes are arriving

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Won't Fix
    • 0.92.0
    • None
    • regionserver, wal
    • None

    Description

      If you restart HDFS underneath HBase, when HBase isn't taking any write load, the region servers won't "notice" that there's any problem until the next time they take a write, at which point they will abort (because the pipeline is gone from beneath them). It would be better if they wrote some garbage to their HLog once every few seconds as a sort of keepalive, so they will aggressively abort as soon as there's an issue.

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-4222 Make HLog more resilient to write pipeline failures

          • Major - Major loss of function.
          • Closed

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              Unassigned Unassigned
              tlipcon Todd Lipcon
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              Dates

                Created:
                Updated:
                Resolved: