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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4499) [replication] Source shouldn't update ZK if it didn't progress
Date Fri, 30 Sep 2011 15:23:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13118132#comment-13118132
] 

Hudson commented on HBASE-4499:
-------------------------------

Integrated in HBase-TRUNK #2272 (See [https://builds.apache.org/job/HBase-TRUNK/2272/])
    HBASE-3130  [replication] ReplicationSource can't recover from session
               expired on remote clusters (Chris Trezzo via JD)
   HBASE-4499  [replication] Source shouldn't update ZK if it didn't progress
               (Chris Trezzo via JD)

jdcryans : 
Files : 
* /hbase/trunk/CHANGES.txt
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/replication/ReplicationPeer.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/replication/ReplicationZookeeper.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationSource.java
* /hbase/trunk/src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java
* /hbase/trunk/src/test/java/org/apache/hadoop/hbase/replication/TestReplicationPeer.java

                
> [replication] Source shouldn't update ZK if it didn't progress
> --------------------------------------------------------------
>
>                 Key: HBASE-4499
>                 URL: https://issues.apache.org/jira/browse/HBASE-4499
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.90.4
>            Reporter: Jean-Daniel Cryans
>            Assignee: Chris Trezzo
>            Priority: Minor
>             Fix For: 0.92.0
>
>         Attachments: 4499.txt
>
>
> A relatively minor optimization to be done in ReplicationSource, currently it calls ReplicationSourceManager.logPositionAndCleanOldLogs
whether it made progress or not, generating more load on ZK than necessary. The last position
should be kept around so that we can compare.

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