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From "Jeffrey Zhong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-8680) distributedLogReplay performance regression
Date Mon, 03 Jun 2013 18:09:20 GMT
Jeffrey Zhong created HBASE-8680:

             Summary: distributedLogReplay performance regression
                 Key: HBASE-8680
                 URL: https://issues.apache.org/jira/browse/HBASE-8680
             Project: HBase
          Issue Type: Bug
          Components: MTTR
            Reporter: Jeffrey Zhong
            Assignee: Jeffrey Zhong

The JIRA is to check in changes to address performance issues found during my performance
testing as following:
1) When WALEdits belongs to a region which split/merged later incur extra waitUntilRegionOnline
RPC call
2) Using a single shared connection for replaying archives better performance. Everytime creating
a new connection, it incurs 4+ seconds to establish a connection to ZK.
3) other small modifications to mitigate excessive logging

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