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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12931) The existing KeyValues in memstore are not removed completely after inserting cell into memStore
Date Sat, 07 Mar 2015 17:43:38 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14351714#comment-14351714
] 

Hadoop QA commented on HBASE-12931:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12703245/HBASE-12931.patch
  against master branch at commit 95fc53f1056238e0b5f65df7f3015f2aec3d0a20.
  ATTACHMENT ID: 12703245

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified
tests.

    {color:green}+1 hadoop versions{color}. The patch compiles with all supported hadoop versions
(2.4.1 2.5.2 2.6.0)

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

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac 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 increase the total number
of 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:red}-1 site{color}.  The patch appears to cause mvn site goal to fail.

     {color:red}-1 core tests{color}.  The patch failed these unit tests:
     

     {color:red}-1 core zombie tests{color}.  There are 1 zombie test(s): 	at org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat.testMRIncrementalLoadWithSplit(TestHFileOutputFormat.java:378)

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-rest.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-annotations.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//artifact/patchprocess/checkstyle-aggregate.html

  Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/13135//console

This message is automatically generated.

> The existing KeyValues in memstore are not removed completely after inserting cell into
memStore 
> -------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-12931
>                 URL: https://issues.apache.org/jira/browse/HBASE-12931
>             Project: HBase
>          Issue Type: Bug
>            Reporter: ChiaPing Tsai
>            Assignee: ChiaPing Tsai
>            Priority: Minor
>             Fix For: 2.0.0, 1.1.0
>
>         Attachments: HBASE-12931.patch
>
>
> If I'm not wrong, the UPSERT method of memStore should remove all existing KeyValues
except the newer version.
> In memStore,
> {code:title=DefaultMemStore.java|borderStyle=solid}
> int versIionsVisible = 0;
> ...
> if (cur.getTypeByte() == KeyValue.Type.Put.getCode() &&
>             cur.getSequenceId() <= readpoint) {
>           if (versionsVisible > 1) {
>             // if we get here we have seen at least one version visible to the oldest
scanner,
>             // which means we can prove that no scanner will see this version
>             // false means there was a change, so give us the size.
>             long delta = heapSizeChange(cur, true);
>             addedSize -= delta;
>             this.size.addAndGet(-delta);
>             it.remove();
>             setOldestEditTimeToNow();
>           } else {
>             versionsVisible++;
>           }
> {code}
> Does "versionsVisible > 1" should be changed to "versionsVisible >= 1" ?
> thanks.



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