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https://issues.apache.org/jira/browse/HADOOP-3863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12618505#action_12618505
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Hadoop QA commented on HADOOP-3863:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12387218/HADOOP-3863_0_20080730.patch
against trunk revision 680823.
+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 warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2985/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2985/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2985/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2985/console
This message is automatically generated.
> Use a thread-local rather than static ENCODER/DECODER variables in Text for
> synchronization
> -------------------------------------------------------------------------------------------
>
> Key: HADOOP-3863
> URL: https://issues.apache.org/jira/browse/HADOOP-3863
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.18.0
> Reporter: Arun C Murthy
> Assignee: Arun C Murthy
> Priority: Critical
> Fix For: 0.19.0
>
> Attachments: HADOOP-3863_0_20080730.patch
>
>
> Text.{ENCODER|DECODER} are static variables which need to be synchronized in
> Text.{read|write}String; given that lots of RPC code calls
> Text.{read|write}String the contention for this lock shows up very
> significantly on large clusters.
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