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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-342) RM doesn't retry token renewals
Date Tue, 10 May 2016 20:33:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15278827#comment-15278827

Jian He commented on YARN-342:

[~daryn], is DFS client not handling the transient network failures, doing automatically retry
? I expect it would. 

> RM doesn't retry token renewals
> -------------------------------
>                 Key: YARN-342
>                 URL: https://issues.apache.org/jira/browse/YARN-342
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 3.0.0, 2.0.0-alpha, 0.23.6
>            Reporter: Daryn Sharp
>            Assignee: Kuhu Shukla
>            Priority: Critical
> The RM stops trying to renew tokens if any exception occurs during the renew.  This should
be changed to abort only if the exception is {{InvalidToken}} to allow resilience to transient
network failures, issues associated with aborted connections when the NN is overloaded, cluster
upgrades, etc.

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