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https://issues.apache.org/jira/browse/HBASE-13651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14540735#comment-14540735
]
Hadoop QA commented on HBASE-13651:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12732313/HBASE-13651-v0.patch
against master branch at commit befb46c4d5e7f2d5ce41199fbf9ca2fb7bf43cfc.
ATTACHMENT ID: 12732313
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 2 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 protoc{color}. The applied patch does not increase the
total number of protoc 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
1899 checkstyle errors (more than the master's current 1896 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:red}-1 lineLengths{color}. The patch introduces the following lines
longer than 100:
+ moreCellsInRow ? NextState.SIZE_LIMIT_REACHED_MID_ROW :
NextState.SIZE_LIMIT_REACHED;
+ moreCellsInRow ? NextState.TIME_LIMIT_REACHED_MID_ROW :
NextState.TIME_LIMIT_REACHED;
+ return new
NotServingRegionException(getRegionInfo().getRegionNameAsString() +" is
closing");
{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 .
{color:red}-1 core zombie tests{color}. There are 1 zombie test(s):
at org.apache.hadoop.hbase.master.TestRegionState.test(TestRegionState.java:36)
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/14027//testReport/
Release Findbugs (version 2.0.3) warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/14027//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors:
https://builds.apache.org/job/PreCommit-HBASE-Build/14027//artifact/patchprocess/checkstyle-aggregate.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/14027//console
This message is automatically generated.
> Handle StoreFileScanner FileNotFoundException
> ---------------------------------------------
>
> Key: HBASE-13651
> URL: https://issues.apache.org/jira/browse/HBASE-13651
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.94.27, 0.98.10.1
> Reporter: Matteo Bertozzi
> Assignee: Matteo Bertozzi
> Priority: Minor
> Attachments: HBASE-13651-0.94-draft.patch, HBASE-13651-draft.patch,
> HBASE-13651-v0-0.94.patch, HBASE-13651-v0-0.98.patch,
> HBASE-13651-v0-branch-1.patch, HBASE-13651-v0.patch
>
>
> Example:
> * Machine-1 is serving Region-X and start compaction
> * Machine-1 goes in GC pause
> * Region-X gets reassigned to Machine-2
> * Machine-1 exit from the GC pause
> * Machine-1 (re)moves the compacted files
> * Machine-1 get the lease expired and shutdown
> Machine-2 has now tons of FileNotFoundException on scan. If we reassign the
> region everything is ok, because we pickup the files compacted by Machine-1.
> This problem doesn't happen in the new code 1.0+ (i think but I haven't
> checked, it may be 1.1) where we write on the WAL the compaction event before
> (re)moving the files.
> A workaround is handling FileNotFoundException and refresh the store files,
> or shutdown the region and reassign. the first one is easy in 1.0+ the second
> one requires more work because at the moment we don't have the code to notify
> the master that the RS is closing the region, alternatively we can shutdown
> the entire RS (it is not a good solution but the case is rare enough)
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