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https://issues.apache.org/jira/browse/HBASE-14524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15081168#comment-15081168
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Hadoop QA commented on HBASE-14524:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12780294/HBASE-14524.patch
against master branch at commit 9589a7d8be4d29bffcb0c711e5bd6573e8df712c.
ATTACHMENT ID: 12780294
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:green}+1 hadoop versions{color}. The patch compiles with all
supported hadoop versions (2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.0 2.6.1 2.7.0
2.7.1)
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 protoc{color}. The applied patch does not increase the
total number of protoc compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 checkstyle{color}. The applied patch does not generate new
checkstyle errors.
{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 lineLengths{color}. The patch does not introduce lines
longer than 100
{color:green}+1 site{color}. The mvn post-site goal succeeds with this
patch.
{color:green}+1 core tests{color}. The patch passed unit tests in .
{color:green}+1 zombies{color}. No zombie tests found running at the end of
the build.
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/17107//testReport/
Release Findbugs (version 2.0.3) warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/17107//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors:
https://builds.apache.org/job/PreCommit-HBASE-Build/17107//artifact/patchprocess/checkstyle-aggregate.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/17107//console
This message is automatically generated.
> Short-circuit comparison of rows in CellComparator
> --------------------------------------------------
>
> Key: HBASE-14524
> URL: https://issues.apache.org/jira/browse/HBASE-14524
> Project: HBase
> Issue Type: Improvement
> Reporter: Lars Francke
> Assignee: Lars Francke
> Priority: Minor
> Attachments: HBASE-14524.patch, HBASE-14524.patch, HBASE-14524.patch
>
>
> {{CellComparator#compareRows}} compares two rows. For Scans and Gets these
> objects can sometimes be exactly the same object.
> I see this (without fully understanding everything that's going on) for the
> first cell in each row.
> In these circumstances I think it makes sense to short-circuit the comparison
> (not do a byte comparison and class cast checks) and bail out early if the
> objects are identical.
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