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https://issues.apache.org/jira/browse/HADOOP-4434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12645442#action_12645442
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Hadoop QA commented on HADOOP-4434:
-----------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12393353/HADOOP-4434.patch
against trunk revision 711734.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 12 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 warnings.
+1 Eclipse classpath. The patch retains Eclipse classpath integrity.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3540/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3540/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3540/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3540/console
This message is automatically generated.
> Improve log rotation and reduce communication between agent and logging
> process, make agent more fault tolerant
> ---------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-4434
> URL: https://issues.apache.org/jira/browse/HADOOP-4434
> Project: Hadoop Core
> Issue Type: Improvement
> Environment: Redhat Enterprise Linux 4.5, Java 6
> Reporter: Eric Yang
> Assignee: Eric Yang
> Attachments: HADOOP-4434.patch
>
> Original Estimate: 96h
> Remaining Estimate: 96h
>
> - Chukwa Agent does not handle rotated log correctly. The current design
> requires the logging process to pause the agent, rotate the log, then resume
> the log streaming. The three communication between the running process and
> chukwa agent could become a problem when either or one of the process is
> down. The implementation should be able to detect log rotation in the chukwa
> agent.
> - Chukwa Agent should detect and prevent the same log being streamed more
> than once.
> - Chukwa Agent should synchronize data streaming addition when picking up the
> check point file.
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