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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13437) ThriftServer leaks ZooKeeper connections
Date Wed, 22 Apr 2015 06:20:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14506506#comment-14506506

Hadoop QA commented on HBASE-13437:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against master branch at commit 23960207527b685609cd01259efbeb98f077b209.
  ATTACHMENT ID: 12727136

    {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

    {color:red}-1 javac{color}.  The patch appears to cause mvn compile goal to fail with
Hadoop version 2.4.1.

    Compilation errors resume:
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build@2/hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestConnectionCache.java:[23,31]
cannot find symbol
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build@2/hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestConnectionCache.java:[28,11]
cannot find symbol
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.2:testCompile
(default-testCompile) on project hbase-server: Compilation failure: Compilation failure:
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build@2/hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestConnectionCache.java:[23,31]
cannot find symbol
[ERROR] symbol:   class MediumTests
[ERROR] location: package org.apache.hadoop.hbase
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build@2/hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestConnectionCache.java:[28,11]
cannot find symbol
[ERROR] symbol: class MediumTests
[ERROR] -> [Help 1]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] For more information about the errors and possible solutions, please read the following
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :hbase-server

Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/13770//console

This message is automatically generated.

> ThriftServer leaks ZooKeeper connections
> ----------------------------------------
>                 Key: HBASE-13437
>                 URL: https://issues.apache.org/jira/browse/HBASE-13437
>             Project: HBase
>          Issue Type: Bug
>          Components: Thrift
>    Affects Versions: 0.98.8
>            Reporter: Winger Pun
>         Attachments: HBASE-13437_1.patch, hbase-13437-fix.patch
> HBase ThriftServer will cache Zookeeper connection in memory using org.apache.hadoop.hbase.util.ConnectionCache.
This class has a mechanism called chore to clean up connections idle for too long(default
is 10 min). But method timedOut for testing whether idle exceed for maxIdleTime always return
false which leads to never release the Zookeeper connection. If we send request to ThriftServer
every maxIdleTime then ThriftServer will keep thousands of Zookeeper Connection soon.

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