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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1572) Checkpointer should trigger checkpoint with specified period.
Date Thu, 13 Jan 2011 02:16:47 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12981085#action_12981085
] 

Hadoop QA commented on HDFS-1572:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12467826/1572-2.diff
  against trunk revision 1056206.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed these core unit tests:


    -1 contrib tests.  The patch failed contrib unit tests.

    -1 system test framework.  The patch failed system test framework compile.

Test results: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/93//testReport/
Findbugs warnings: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/93//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/93//console

This message is automatically generated.

> Checkpointer should trigger checkpoint with specified period.
> -------------------------------------------------------------
>
>                 Key: HDFS-1572
>                 URL: https://issues.apache.org/jira/browse/HDFS-1572
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.22.0
>            Reporter: Liyin Liang
>            Priority: Blocker
>             Fix For: 0.21.0
>
>         Attachments: 1527-1.diff, 1572-2.diff, HDFS-1572-2.patch, HDFS-1572.patch
>
>
> {code:}
>   long now = now();
>   boolean shouldCheckpoint = false;
>   if(now >= lastCheckpointTime + periodMSec) {
>     shouldCheckpoint = true;
>   } else {
>     long size = getJournalSize();
>     if(size >= checkpointSize)
>       shouldCheckpoint = true;
>   }
> {code}
> {dfs.namenode.checkpoint.period} in configuration determines the period of checkpoint.
However, with above code, the Checkpointer triggers a checkpoint every 5 minutes (periodMSec=5*60*1000).
According to SecondaryNameNode.java, the first *if*  statement should be:
>  {code:}
> if(now >= lastCheckpointTime + 1000 * checkpointPeriod) {
>  {code}

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