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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7791) Compaction USER_PRIORITY is slightly broken
Date Thu, 07 Mar 2013 00:54:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13595366#comment-13595366
] 

Hadoop QA commented on HBASE-7791:
----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12572434/HBASE-7791-v1.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 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: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/4703//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4703//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4703//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4703//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4703//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4703//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4703//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4703//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4703//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/4703//console

This message is automatically generated.
                
> Compaction USER_PRIORITY is slightly broken
> -------------------------------------------
>
>                 Key: HBASE-7791
>                 URL: https://issues.apache.org/jira/browse/HBASE-7791
>             Project: HBase
>          Issue Type: Bug
>          Components: Compaction
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>            Priority: Minor
>         Attachments: HBASE-7791-v0.patch, HBASE-7791-v1.patch
>
>
> The code to get compaction priority is as such:
> {code}   public int getCompactPriority(int priority) {
>      // If this is a user-requested compaction, leave this at the highest priority
>      if(priority == Store.PRIORITY_USER) {
>        return Store.PRIORITY_USER;
>      } else {
>        return this.blockingStoreFileCount - this.storefiles.size();
>      }
>    }
> {code}.
> PRIORITY_USER is 1.
> The priorities are compared as numbers in HRegion, so compactions of blocking stores
will override user priority (probably intended); also, if you have blockingFiles minus one,
your priority is suddenly PRIORITY_USER, which may cause at least this:
>         LOG.debug("Warning, compacting more than " + comConf.getMaxFilesToCompact() +
>             " files because of a user-requested major compaction");
> as well as some misleading logging.

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