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https://issues.apache.org/jira/browse/HBASE-12561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14333087#comment-14333087
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Hadoop QA commented on HBASE-12561:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12698850/hbase-12561-v1.patch
against master branch at commit 78da65c412076695d516a4afc196551db3eaa6ff.
ATTACHMENT ID: 12698850
{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:green}+1 site{color}. The mvn site goal succeeds with this patch.
{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.coprocessor.TestMasterObserver.testRegionTransitionOperations(TestMasterObserver.java:1604)
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-rest.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-annotations.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Checkstyle Errors:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//artifact/patchprocess/checkstyle-aggregate.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/12938//console
This message is automatically generated.
> Replicas of regions can be cached from different instances of the table in
> MetaCache
> ------------------------------------------------------------------------------------
>
> Key: HBASE-12561
> URL: https://issues.apache.org/jira/browse/HBASE-12561
> Project: HBase
> Issue Type: Sub-task
> Reporter: Enis Soztutar
> Assignee: Enis Soztutar
> Fix For: 2.0.0, 1.1.0
>
> Attachments: hbase-12561-v1.patch
>
>
> In testing, we have observed that if a client caches some regions with
> replicas in MetaCache, and then the table is recreated, the cache does not
> get invalidated. Upon caching more entries from a new instance of the table
> we can have entries for replicas from different instances of a table
> (remember that metacache is row based)
> On async wal replay (HBASE-11568), we have an elaborate mechanism to track
> region replica locations and skip replaying wal entries if the current region
> replica is not the same region replica from the original wal edit. This
> prevents replaying entries of older tables with the same name to the region
> replicas as well as replaying older entries from split (or merged) regions
> from old parent to new daughters.
> Trace level logging in my test setup showed that we were skipping some
> entries because of a case, where we would have region locations (of the same
> range) cached from different instances of the table (meaning some replicas
> are from already deleted table vs some entries from new table). This was
> causing superfluous skipping entries.
> The fix can be when we are merging entries for the same range, we simply
> check the other entries and delete those that do not match the new region id.
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