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https://issues.apache.org/jira/browse/HADOOP-3471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12601466#action_12601466
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Hadoop QA commented on HADOOP-3471:
-----------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12383148/3471-1.patch
against trunk revision 661918.
+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 passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2528/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2528/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2528/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2528/console
This message is automatically generated.
> TestIndexedSort sometimes fails
> -------------------------------
>
> Key: HADOOP-3471
> URL: https://issues.apache.org/jira/browse/HADOOP-3471
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred, test
> Reporter: Chris Douglas
> Assignee: Chris Douglas
> Fix For: 0.18.0
>
> Attachments: 3471-0.patch, 3471-1.patch
>
>
> After testing an array of equal values, TestIndexedSort::testAllEqual
> introduces a min and max value at random intervals:
> {noformat}
> int diff = r.nextInt(SAMPLE);
> values[diff] = 9;
> values[(diff + r.nextInt(SAMPLE >>> 1)) % SAMPLE] = 11;
> {noformat}
> The max value can overwrite the min value and produce a spurious failure.
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