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https://issues.apache.org/jira/browse/HBASE-12424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14201306#comment-14201306
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Hadoop QA commented on HBASE-12424:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12679980/HBASE-12424.patch
against trunk revision .
ATTACHMENT ID: 12679980
{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 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:red}-1 checkstyle{color}. The applied patch generated
3784 checkstyle errors (more than the trunk's current 3782 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 site goal succeeds with this patch.
{color:green}+1 core tests{color}. The patch passed unit tests in .
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-rest.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/newPatchFindbugsWarningshbase-annotations.html
Checkstyle Errors:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//artifact/patchprocess/checkstyle-aggregate.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/11609//console
This message is automatically generated.
> Finer grained logging and metrics for split transactions
> --------------------------------------------------------
>
> Key: HBASE-12424
> URL: https://issues.apache.org/jira/browse/HBASE-12424
> Project: HBase
> Issue Type: Improvement
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Fix For: 2.0.0, 0.98.8, 0.99.2
>
> Attachments:
> 0001-HBASE-12424-Finer-grained-logging-and-metrics-for-sp.patch,
> 0002-HBASE-12424-Finer-grained-logging-and-metrics-for-sp.patch,
> 0003-HBASE-12424-Finer-grained-logging-and-metrics-for-sp.patch,
> HBASE-12424.patch, HBASE-12424.patch, HowHBaseRegionSplitsareImplemented.pdf
>
>
> A split transaction is a complex orchestration of activity between the
> RegionServer, Master, ZooKeeper, and HDFS NameNode. We have some visibility
> into the time taken by various phases of the split transaction in the logs.
> We will see "Starting split of region $PARENT" before the transaction begins,
> before the parent is offlined. Later we will see "Opening $DAUGHTER" as one
> of the last steps in the transaction, this is after the parent has been
> flushed, offlined, and closed. Finally ""Region split, hbase:meta updated,
> and report to master ... Split took $TIME" after all steps are complete and
> including the total running time of the transaction.
> For debugging the cause(s) of long running split transactions it would be
> useful to know the distribution of time spent in all of the phases of the
> split transaction.
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