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https://issues.apache.org/jira/browse/HADOOP-6099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12728892#action_12728892
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dhruba borthakur commented on HADOOP-6099:
------------------------------------------

The core test failed beucase of this reason

{quote}
Warning: bad ps syntax, perhaps a bogus '-'? See http://procps.sf.net/faq.html
     [exec] /usr/bin/kill -9 22462 
     [exec] /usr/bin/xargs: /usr/bin/kill: No such file or directory
     [exec] /home/hudson/tools/ant/latest/bin/ant 
-Dversion=791937_HADOOP-6099_PATCH-12412894 -DHadoopPatchProcess= 
-Dtest.junit.output.format=xml -Dtest.output=yes -Dcompile.c++=yes 
-Dforrest.home=/home/nigel/tools/forrest/latest 
-Djava5.home=/home/hudson/tools/java/latest1.5 create-c++-configure test-core
     [exec] Buildfile: build.xml
     [exec] 
     [exec] BUILD FAILED
     [exec] Target "create-c++-configure" d
{quote}

Is this a problem with the HadoopQA framework?

> Allow configuring the IPC module to send pings
> ----------------------------------------------
>
>                 Key: HADOOP-6099
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6099
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>             Fix For: 0.21.0
>
>         Attachments: ipcPing.txt, ipcPing2.txt
>
>
> The IPC Client sets a socketTimeout for the time period specified by the 
> pingInterval and then sends a ping every pingInterval. This means that if a 
> RPC server does not respond to a RPC client, then the RPC client blocks 
> forever. This is a problem for applications that wants to switch quickly from 
> one un-responsive HDFS cluster  to a good one. 

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