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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3842) NMProxy should retry on NMNotYetReadyException
Date Tue, 23 Jun 2015 00:44:02 GMT

     [ https://issues.apache.org/jira/browse/YARN-3842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karthik Kambatla updated YARN-3842:
-----------------------------------
    Summary: NMProxy should retry on NMNotYetReadyException  (was: NM restarts could lead
to app failures)

> NMProxy should retry on NMNotYetReadyException
> ----------------------------------------------
>
>                 Key: YARN-3842
>                 URL: https://issues.apache.org/jira/browse/YARN-3842
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>            Reporter: Karthik Kambatla
>            Assignee: Robert Kanter
>            Priority: Critical
>         Attachments: MAPREDUCE-6409.001.patch, MAPREDUCE-6409.002.patch, YARN-3842.001.patch,
YARN-3842.002.patch
>
>
> Consider the following scenario:
> 1. RM assigns a container on node N to an app A.
> 2. Node N is restarted
> 3. A tries to launch container on node N.
> 3 could lead to an NMNotYetReadyException depending on whether NM N has registered with
the RM. In MR, this is considered a task attempt failure. A few of these could lead to a task/job
failure.



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