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https://issues.apache.org/jira/browse/HADOOP-10888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14074011#comment-14074011
 ] 

Yongjun Zhang commented on HADOOP-10888:
----------------------------------------

Somehow I got a typo in the paste, repaste the dump from the debug run:
{code}
YJD /etc/hosts contents:
127.0.0.1       localhost
   asf900.ygridcore.net       asf900

# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

YJD hostname contents:
asf900
{code}
where "asf900" is the result of "hostname" command. 


> org.apache.hadoop.ipc.TestIPC.testRetryProxy failed often with timeout
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-10888
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10888
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.5.0
>            Reporter: Yongjun Zhang
>            Assignee: Yongjun Zhang
>         Attachments: HADOOP-10888.001.patch, HADOOP-10888.002.patch, 
> HADOOP-10888.003.dbg.patch
>
>
> As an example, 
> https://builds.apache.org/job/PreCommit-HADOOP-Build/4333//testReport/org.apache.hadoop.ipc/TestIPC/testRetryProxy/
> {code}
> Error Message
> test timed out after 60000 milliseconds
> Stacktrace
> java.lang.Exception: test timed out after 60000 milliseconds
>       at java.net.Inet4AddressImpl.getLocalHostName(Native Method)
>       at java.net.InetAddress.getLocalHost(InetAddress.java:1374)
>       at org.apache.hadoop.net.NetUtils.getConnectAddress(NetUtils.java:372)
>       at org.apache.hadoop.net.NetUtils.getConnectAddress(NetUtils.java:359)
>       at 
> org.apache.hadoop.ipc.TestIPC$TestInvocationHandler.invoke(TestIPC.java:212)
>       at org.apache.hadoop.ipc.$Proxy11.dummyRun(Unknown Source)
>       at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>       at java.lang.reflect.Method.invoke(Method.java:597)
>       at 
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
>       at 
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:101)
>       at org.apache.hadoop.ipc.$Proxy11.dummyRun(Unknown Source)
>       at org.apache.hadoop.ipc.TestIPC.testRetryProxy(TestIPC.java:1060)
> {code}



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