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https://issues.apache.org/jira/browse/HBASE-5360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13289848#comment-13289848
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Hadoop QA commented on HBASE-5360:
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-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12531032/hbase-5360.path
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 6 new or modified tests.
+1 hadoop2.0. The patch compiles against the hadoop 2.0 profile.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
-1 findbugs. The patch appears to introduce 4 new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed these unit tests:
org.apache.hadoop.hbase.master.TestSplitLogManager
org.apache.hadoop.hbase.client.TestFromClientSide
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/2112//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/2112//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/2112//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/2112//console
This message is automatically generated.
> [uberhbck] Add options for how to handle offline split parents.
> ----------------------------------------------------------------
>
> Key: HBASE-5360
> URL: https://issues.apache.org/jira/browse/HBASE-5360
> Project: HBase
> Issue Type: Improvement
> Components: hbck
> Affects Versions: 0.90.7, 0.92.1, 0.94.0
> Reporter: Jonathan Hsieh
> Assignee: Jimmy Xiang
> Attachments: hbase-5360.path
>
>
> In a recent case, we attempted to repair a cluster that suffered from
> HBASE-4238 that had about 6-7 generations of "leftover" split data. The hbck
> repair options in an development version of HBASE-5128 treat HDFS as ground
> truth but didn't check SPLIT and OFFLINE flags only found in meta. The net
> effect was that it essentially attempted to merge many regions back into its
> eldest geneneration's parent's range.
> More safe guards to prevent "mega-merges" are being added on HBASE-5128.
> This issue would automate the handling of the "mega-merge" avoiding cases
> such as "lingering grandparents". The strategy here would be to add more
> checks against .META., and perform part of the catalog janitor's
> responsibilities for lingering grandparents. This would potentially include
> options to sideline regions, deleting grandparent regions, min size for
> sidelining, and mechanisms for cleaning .META..
> Note: There already exists an mechanism to reload these regions -- the bulk
> loaded mechanisms in LoadIncrementalHFiles can be used to re-add grandparents
> (automatically splitting them if necessary) to HBase.
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