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  1. HBase
  2. HBASE-17509

Remove the mvcc preassign lock and take usage of MVCC internal lock instead

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • None
    • None
    • None
    • None

    Description

      This is an improvement on current mvcc preassign implementation introduced by HBASE-16698, as well as an easier way to unify the logic of put, append and increment. Thanks Apache9 for contributing the initial idea, will try this out in this JIRA to see how it works.

      Could also be regarded as a first try of HBASE-16873

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          is superceded by

          Bug - A problem which impairs or prevents the functions of the product. HBASE-17471 Region Seqid will be out of order in WAL if using mvccPreAssign

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-16873 WAL: SequenceId assign with less friction

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-16698 Performance issue: handlers stuck waiting for CountDownLatch inside WALKey#getWriteEntry under high writing workload

          • Major - Major loss of function.
          • Resolved

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              liyu Yu Li
              liyu Yu Li
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                Created:
                Updated:
                Resolved: