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https://issues.apache.org/jira/browse/HBASE-5110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13671422#comment-13671422
 ] 

Hadoop QA commented on HBASE-5110:
----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12585595/HBASE-5110_1.patch
  against trunk revision .

    {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 hadoop1.0{color}.  The patch compiles against the hadoop 
1.0 profile.

    {color:green}+1 hadoop2.0{color}.  The patch compiles against the hadoop 
2.0 profile.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any 
warning messages.

    {color:green}+1 javac{color}.  The applied patch does not increase the 
total number of javac compiler warnings.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new 
Findbugs (version 1.3.9) 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 site goal succeeds with this patch.

     {color:red}-1 core tests{color}.  The patch failed these unit tests:
                       
org.apache.hadoop.hbase.replication.TestReplicationQueueFailover

Test results: 
https://builds.apache.org/job/PreCommit-HBASE-Build/5899//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/5899//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/5899//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/5899//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/5899//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/5899//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/5899//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/5899//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/5899//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Console output: 
https://builds.apache.org/job/PreCommit-HBASE-Build/5899//console

This message is automatically generated.
                
> code enhancement - remove unnecessary if-checks in every loop in HLog class
> ---------------------------------------------------------------------------
>
>                 Key: HBASE-5110
>                 URL: https://issues.apache.org/jira/browse/HBASE-5110
>             Project: HBase
>          Issue Type: Improvement
>          Components: wal
>    Affects Versions: 0.90.1, 0.90.2, 0.90.4, 0.92.0
>            Reporter: Mikael Sitruk
>            Priority: Minor
>         Attachments: HBASE-5110_1.patch
>
>
> The HLog class (method findMemstoresWithEditsEqualOrOlderThan) has 
> unnecessary if check in a loop.
>  static byte [][] findMemstoresWithEditsEqualOrOlderThan(final long 
> oldestWALseqid,
>       final Map<byte [], Long> regionsToSeqids) {
>     //  This method is static so it can be unit tested the easier.
>     List<byte []> regions = null;
>     for (Map.Entry<byte [], Long> e: regionsToSeqids.entrySet()) {
>       if (e.getValue().longValue() <= oldestWALseqid) {
>         if (regions == null) regions = new ArrayList<byte []>();
>         regions.add(e.getKey());
>       }
>     }
>     return regions == null?
>       null: regions.toArray(new byte [][] {HConstants.EMPTY_BYTE_ARRAY});
>   }
> The following change is suggested
>   static byte [][] findMemstoresWithEditsEqualOrOlderThan(final long 
> oldestWALseqid,
>       final Map<byte [], Long> regionsToSeqids) {
>     //  This method is static so it can be unit tested the easier.
>     List<byte []> regions = new ArrayList<byte []>();
>     for (Map.Entry<byte [], Long> e: regionsToSeqids.entrySet()) {
>       if (e.getValue().longValue() <= oldestWALseqid) {
>         regions.add(e.getKey());
>       }
>     }
>     return regions.size() == 0?
>       null: regions.toArray(new byte [][] {HConstants.EMPTY_BYTE_ARRAY});
>   }

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