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From "Vlad Dogaru (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-4192) Optimize HLog for Throughput Using Delayed RPCs
Date Thu, 11 Aug 2011 06:55:27 GMT
Optimize HLog for Throughput Using Delayed RPCs
-----------------------------------------------

                 Key: HBASE-4192
                 URL: https://issues.apache.org/jira/browse/HBASE-4192
             Project: HBase
          Issue Type: New Feature
          Components: wal
    Affects Versions: 0.92.0
            Reporter: Vlad Dogaru
            Priority: Minor


Introduce a new HLog configuration parameter (batchEntries) for more aggressive batching of
appends.  If this is enabled, HLog appends are not written to the HLog writer immediately,
but batched and written either periodically or when a sync is requested.  Because sync times
become larger, they use delayed RPCs to free up RPC handler threads.


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