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  1. HBase
  2. HBASE-15973

PeriodicMemstoreFlusher is causing excessive flushes when back-in-time inserts are happening

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Not A Problem
    • None
    • None
    • None
    • None

    Description

      In a production cluster, we have noticed a case where flushes were happening for 200-400KB in sizes. Turns out the periodic memstore flusher is force flushing because cells with older timestamps (in this case days old) were being inserted.

      We have periodic memstore flusher with 1 hour defaulted, so in a case where replication is lagging, or phoenix secondary index rebuild or the user doing back-in-time inserts with cell timestamps older than 1 hour, we will flush extremely frequently.

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            Unassigned Unassigned
            enis Enis Soztutar
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              Updated:
              Resolved: