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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3695) EOFException shouldn't be retry forever in RMProxy
Date Thu, 21 May 2015 22:48:17 GMT

    [ https://issues.apache.org/jira/browse/YARN-3695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14555192#comment-14555192
] 

Junping Du commented on YARN-3695:
----------------------------------

bq. Junping Du, we have seen in some cases EOFException is thrown when connection loses. see
YARN-2841
I see. Thanks [~jianhe] for sharing the background here. Now I agree EOFException shouldn't
be a problem for retry. 

bq. Seems I forgot to fix retry policy FOREVER in ServerProxy as part of YARN-3646.
No problem. We can fix the same issue in this JIRA given EOFException deserve a retry also.
I will update JIRA name to reflect this. Please feel free to take this JIRA if you want to
work on it. Thx!

> EOFException shouldn't be retry forever in RMProxy
> --------------------------------------------------
>
>                 Key: YARN-3695
>                 URL: https://issues.apache.org/jira/browse/YARN-3695
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Junping Du
>
> YARN-3646 fix the retry forever policy that it only applies on limited exceptions rather
than all exceptions. Here, we may want to review these exceptions. At least, exception EOFException
shouldn't retry forever.
> {code}
>     exceptionToPolicyMap.put(EOFException.class, retryPolicy);
>     exceptionToPolicyMap.put(ConnectException.class, retryPolicy);
>     exceptionToPolicyMap.put(NoRouteToHostException.class, retryPolicy);
>     exceptionToPolicyMap.put(UnknownHostException.class, retryPolicy);
>     exceptionToPolicyMap.put(ConnectTimeoutException.class, retryPolicy);
>     exceptionToPolicyMap.put(RetriableException.class, retryPolicy);
>     exceptionToPolicyMap.put(SocketException.class, retryPolicy);
> {code}



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