[jira] [Commented] (MAPREDUCE-3727) jobtoken location property in jobconf refers to wrong jobtoken file

["Tom White (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13199215#comment-13199215 ] 

Tom White commented on MAPREDUCE-3727:
--------------------------------------

+1 looks good to me.
                
> jobtoken location property in jobconf refers to wrong jobtoken file
> -------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3727
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3727
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 0.23.1, 1.0.0
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>            Priority: Critical
>             Fix For: 0.23.1, 1.1.0
>
>         Attachments: MAPREDUCE-3727.patch
>
>
> Oozie launcher job (for MR/Pig/Hive/Sqoop action) reads the location of the jobtoken file from the *HADOOP_TOKEN_FILE_LOCATION* ENV var and seeds it as the *mapreduce.job.credentials.binary* property in the jobconf that will be used to launch the real (MR/Pig/Hive/Sqoop) job.
> The MR/Pig/Hive/Sqoop submission code (via Hadoop job submission) uses correctly the injected *mapreduce.job.credentials.binary* property to load the credentials and submit their MR jobs.
> The problem is that the *mapreduce.job.credentials.binary* property also makes it to the tasks of the MR/Pig/Hive/Sqoop MR jobs.
> If for some reason the MR/Pig/Hive/Sqoop MR code does some logic that triggers the credential loading, because the property is set, the credential loading fails trying to load a jobtoken file of the launcher job which does not exists in the context of the MR/Pig/Hive/Sqoop jobs.
> More specifically, we are seeing this happening with certain hive queries that trigger a conditional code within their RowContainer which then uses the FileInputFormat.getSplits() and then the TokenCache tries to load credentials for a file that is for the wrong job.

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