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https://issues.apache.org/jira/browse/HBASE-11935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14129238#comment-14129238
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Hadoop QA commented on HBASE-11935:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12667848/hbase-11935-trunk-v2.patch
against trunk revision .
ATTACHMENT ID: 12667848
{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 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 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.replication.regionserver.TestReplicationThrottler
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/10817//console
This message is automatically generated.
> Unbounded creation of Replication Failover workers
> --------------------------------------------------
>
> Key: HBASE-11935
> URL: https://issues.apache.org/jira/browse/HBASE-11935
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.99.0, 2.0.0, 0.94.23, 0.98.6
> Reporter: Lars Hofhansl
> Assignee: Jesse Yates
> Priority: Critical
> Fix For: 2.0.0, 0.98.7, 0.94.24, 0.99.1
>
> Attachments: hbase-11935-0.98-v0.patch, hbase-11935-0.98-v1.patch,
> hbase-11935-trunk-v0.patch, hbase-11935-trunk-v1.patch,
> hbase-11935-trunk-v2.patch
>
>
> We just ran into a production incident with TCP SYN storms on port 2181
> (zookeeper).
> In our case the slave cluster was not running. When we bounced the primary
> cluster we saw an "unbounded" number of failover threads all hammering the
> hosts on the slave ZK machines (which did not run ZK at the time)... Causing
> overall degradation of network performance between datacenters.
> Looking at the code we noticed that the thread pool handling of the Failover
> workers was probably unintended.
> Patch coming soon.
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