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https://issues.apache.org/jira/browse/HBASE-4132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13113893#comment-13113893
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Ted Yu commented on HBASE-4132:
-------------------------------

Running TestLogRolling#testLogRollOnPipelineRestart in debugger, I got:
{code}
java.lang.AssertionError: preLogRolledCalled has size of 3
        at org.junit.Assert.fail(Assert.java:91)
        at org.junit.Assert.assertTrue(Assert.java:43)
        at 
org.apache.hadoop.hbase.regionserver.wal.TestLogRolling.testLogRollOnPipelineRestart(TestLogRolling.java:311)
{code}

The first two calls were:
{code}
TestLogRolling$1.preLogRoll(Path, Path) line: 245
HLog.rollWriter(boolean) line: 564      
LogRoller.run() line: 93
{code}
The third one was:
{code}
TestLogRolling$1.preLogRoll(Path, Path) line: 245       
HLog.rollWriter(boolean) line: 564      
TestLogRolling.testLogRollOnPipelineRestart() line: 310 
{code}

> Extend the WALActionsListener API to accomodate log archival
> ------------------------------------------------------------
>
>                 Key: HBASE-4132
>                 URL: https://issues.apache.org/jira/browse/HBASE-4132
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>             Fix For: 0.94.0
>
>         Attachments: walArchive.txt, walArchive2.txt, walArchive3.txt
>
>
> The WALObserver interface exposes the log roll events. It would be nice to 
> extend it to accomodate log archival events as well.

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