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https://issues.apache.org/jira/browse/HBASE-13036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14319501#comment-14319501
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Hadoop QA commented on HBASE-13036:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12698591/13036-1.txt
against master branch at commit 7561ae6d1257b51c0bb1ef46e52d8ede2c7c926f.
ATTACHMENT ID: 12698591
{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:red}-1 javadoc{color}. The javadoc tool appears to have generated 1
warning messages.
{color:red}-1 checkstyle{color}. The applied patch generated
1938 checkstyle errors (more than the master's current 1937 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:
org.apache.hadoop.hbase.master.TestDistributedLogSplitting
{color:red}-1 core zombie tests{color}. There are 3 zombie test(s):
at
org.apache.hadoop.hbase.TestCellUtil.testCreateCellScannerOverflow(TestCellUtil.java:239)
at
org.apache.hadoop.hbase.mapreduce.TestTableMapReduceBase.testCombiner(TestTableMapReduceBase.java:106)
at
org.apache.hadoop.hbase.mapreduce.TestLoadIncrementalHFilesSplitRecovery.testGroupOrSplitPresplit(TestLoadIncrementalHFilesSplitRecovery.java:412)
at
org.apache.hadoop.hbase.mapreduce.TestMultiTableInputFormat.testScan(TestMultiTableInputFormat.java:248)
at
org.apache.hadoop.hbase.mapreduce.TestMultiTableInputFormat.testScanEmptyToAPP(TestMultiTableInputFormat.java:187)
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-rest.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-annotations.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Checkstyle Errors:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/checkstyle-aggregate.html
Javadoc warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//artifact/patchprocess/patchJavadocWarnings.txt
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/12813//console
This message is automatically generated.
> Meta scanner should use its own threadpool
> ------------------------------------------
>
> Key: HBASE-13036
> URL: https://issues.apache.org/jira/browse/HBASE-13036
> Project: HBase
> Issue Type: Bug
> Reporter: Devaraj Das
> Assignee: Devaraj Das
> Attachments: 13036-1.txt
>
>
> Currently, during region location lookups, the meta is scanned and for this
> the scanner submits a request to the thread pool of the table in question.
> Sometimes, it might happen that many scan requests are simultaneously
> submitted on the table - let's say 256, and this is the max size of the
> thread pool. Each of these scan requests would in turn submit meta scan
> requests on the same thread pool, but they will be in the queue. The meta
> scans will not happen and the original table scans would lock up. The meta
> scans should use a different thread pool.
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