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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12054) RPC client should not retry for InvalidToken exceptions
Date Thu, 04 Jun 2015 18:15:39 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14573303#comment-14573303
] 

Arpit Agarwal commented on HADOOP-12054:
----------------------------------------

Hi [~varun_saxena], thanks for taking this up.

It looks like the new test case passes even after reverting the change to RetryPolicies.java.
I did not spend any time debugging it though. Do you see the same?

> RPC client should not retry for InvalidToken exceptions
> -------------------------------------------------------
>
>                 Key: HADOOP-12054
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12054
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 2.4.0
>            Reporter: Daryn Sharp
>            Assignee: Varun Saxena
>            Priority: Critical
>         Attachments: HADOOP-12054.01.patch
>
>
> An InvalidToken exception is thrown for expired or cancelled tokens.  An InvalidToken
not wrapped in a RetriableException must be considered fatal by the retry proxies or clients
will spam the service with failed connections.  Depending on the context, a service may be
degraded when spammed with thousands of connection failures.



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