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  1. ZooKeeper
  2. ZOOKEEPER-1674

There is no need to clear & load the database across leader election

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
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      Description

      It is interesting to notice the piece of codes in QuorumPeer.java

      /* ZKDatabase is a top level member of quorumpeer

      • which will be used in all the zookeeperservers
      • instantiated later. Also, it is created once on
      • bootup and only thrown away in case of a truncate
      • message from the leader
        */
        private ZKDatabase zkDb;

      It is introduced by ZOOKEEPER-596. Now, we just drop the database every leader election.

      We can keep it safely with ZOOKEEPER-1549.

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              • Assignee:
                Unassigned
                Reporter:
                fanster.z Jacky007
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                • Created:
                  Updated: