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Posted to yarn-issues@hadoop.apache.org by "Omkar Vinit Joshi (JIRA)" <ji...@apache.org> on 2013/11/20 03:37:20 UTC

[jira] [Updated] (YARN-1363) Get / Cancel / Renew delegation token api should be non blocking

     [ https://issues.apache.org/jira/browse/YARN-1363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Omkar Vinit Joshi updated YARN-1363:
------------------------------------

    Attachment: YARN-1363.1.patch

Work in progress patch.. YARN-1363.1.patch

> Get / Cancel / Renew delegation token api should be non blocking
> ----------------------------------------------------------------
>
>                 Key: YARN-1363
>                 URL: https://issues.apache.org/jira/browse/YARN-1363
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Omkar Vinit Joshi
>            Assignee: Omkar Vinit Joshi
>         Attachments: YARN-1363.1.patch
>
>
> Today GetDelgationToken, CancelDelegationToken and RenewDelegationToken are all blocking apis.
> * As a part of these calls we try to update RMStateStore and that may slow it down.
> * Now as we have limited number of client request handlers we may fill up client handlers quickly.



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