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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13604) Abort retry loop when RPC has an unrecoverable error
Date Mon, 19 Sep 2016 15:53:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15503824#comment-15503824
] 

Steve Loughran commented on HADOOP-13604:
-----------------------------------------

I'm supportive of this. Given it's reference to That Which Must Not be Named, linking to HADOOP-12649

> Abort retry loop when RPC has an unrecoverable error
> ----------------------------------------------------
>
>                 Key: HADOOP-13604
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13604
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Henry Robinson
>            Assignee: Xiao Chen
>
> I've seen an issue where, after an RPC client hit an error obtaining a TGT from Kerberos,
the RPC client continues to retry even though there's no chance of success (the no login window
is set to 600s).
> In this particular deployment, the client retries 15 times at 15s intervals, leading
to a delay of more than three minutes before the failure is bubbled up to the client when
the RPC ultimately fails.
> Unrecoverable errors (like failures to login to Kerberos) should lead to fast aborts
of the retry loop.



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