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https://issues.apache.org/jira/browse/HADOOP-10843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14095833#comment-14095833
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Hadoop QA commented on HADOOP-10843:
------------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12661350/HADOOP-10843.3.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-tools/hadoop-gridmix.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/4466//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/4466//console
This message is automatically generated.
> TestGridmixRecord unit tests failure on PowerPC
> -----------------------------------------------
>
> Key: HADOOP-10843
> URL: https://issues.apache.org/jira/browse/HADOOP-10843
> Project: Hadoop Common
> Issue Type: Bug
> Components: test, tools
> Affects Versions: 2.2.0, 2.3.0, 2.4.0, 2.4.1
> Reporter: Jinghui Wang
> Assignee: Jinghui Wang
> Attachments: HADOOP-10843.1.patch, HADOOP-10843.2.patch,
> HADOOP-10843.3.patch
>
>
> In TestGridmixRecord#binSortTest, the test expects the comparison result of
> WritableComparator.compareBytes, which uses UnsafeComparer, to be the integer
> difference rather than the documented "@return 0 if equal, < 0 if left is
> less than right, etc.".
> TestGridmixRecord#binSortTest code snippet
> {code}
> final int chk = WritableComparator.compareBytes(
> out1.getData(), 0, out1.getLength(),
> out2.getData(), 0, out2.getLength());
> assertEquals(chk, x.compareTo(y));
> assertEquals(chk, cmp.compare(
> out1.getData(), 0, out1.getLength(),
> out2.getData(), 0, out2.getLength()));
> {code}
> The code snippet below shows the Unsafe comparator behavior for
> non-little-endian machines.
> {code}
> if (!littleEndian) {
> return lessThanUnsigned(lw, rw) ? -1 : 1;
> }
> {code}
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