zhihai xu commented on YARN-2893:

[~jira.shegalov], thanks for the review.
I can put back catching the exception for {{if 
(UserGroupInformation.isSecurityEnabled()) {}}. I will keep the change to 
parseCredentials for Security not Enabled case, So we can reject an application 
with corrupted credentials for none-secure one. 
Are you ok with it?

> AMLaucher: sporadic job failures due to EOFException in readTokenStorageStream
> ------------------------------------------------------------------------------
>                 Key: YARN-2893
>                 URL: https://issues.apache.org/jira/browse/YARN-2893
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.4.0
>            Reporter: Gera Shegalov
>            Assignee: zhihai xu
>         Attachments: YARN-2893.000.patch, YARN-2893.001.patch, 
> YARN-2893.002.patch
> MapReduce jobs on our clusters experience sporadic failures due to corrupt 
> tokens in the AM launch context.

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