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  1. Hive
  2. HIVE-11965

add heartbeat count for each lock/transaction

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Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 0.14.0
    • None
    • Transactions
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    Description

      We should add a HEARTBEAT_COUNT column to HIVE_LOCKS and TXNS tables so that queries that update LAST_HEARTBEAT also set HEARTBEAT_COUNT=HEARTBEAT_COUNT + 1.

      This should only be set on explicit heartbeat call, not ones resulting from commits, etc.

      This has low overhead but allows us to detect clients that heartbeat more often than is necessary thus creating useless extra load on metastore.

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          depends upon

          Sub-task - The sub-task of the issue HIVE-12832 RDBMS schema changes for HIVE-11388

          • Major - Major loss of function.
          • Closed
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              Unassigned Unassigned
              ekoifman Eugene Koifman
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              Dates

                Created:
                Updated: