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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12339) WAL performance evaluation tool doesn't roll logs
Date Tue, 06 Jan 2015 20:58:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14266750#comment-14266750
] 

Hudson commented on HBASE-12339:
--------------------------------

SUCCESS: Integrated in HBase-1.0 #638 (See [https://builds.apache.org/job/HBase-1.0/638/])
HBASE-12339 WALPerformanceEvaluation should have a log roller. (enis: rev ca8846eeef1cc980194924038f831817eca67a0e)
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/LogRoller.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/wal/WALPerformanceEvaluation.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/MockRegionServerServices.java


> WAL performance evaluation tool doesn't roll logs
> -------------------------------------------------
>
>                 Key: HBASE-12339
>                 URL: https://issues.apache.org/jira/browse/HBASE-12339
>             Project: HBase
>          Issue Type: Bug
>          Components: wal
>    Affects Versions: 0.99.0
>            Reporter: Sean Busbey
>            Assignee: Sean Busbey
>             Fix For: 1.0.0, 2.0.0, 1.1.0
>
>         Attachments: HBASE-12339.1.patch.txt
>
>
> the perf eval tool for the wal never sets up a log roller and instead used to just call
the rollWriter method directly.
> Eventually it changed to call requestLogRoll instead of attempting to do the roll itself.
requestLogRoll is the same method used internal to the wal code and it relies on there being
a LogRoller to actually have rolls happen. (the method just notifies all of the listeners
for hte wal that one of them should call the roll method.)



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