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From "Vinod K V (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-744) Support in DistributedCache to share cache files with other users after HADOOP-4493
Date Mon, 22 Mar 2010 07:18:27 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Vinod K V updated MAPREDUCE-744:

     Component/s: security
    Release Note: Fixed DistributedCache to support sharing of the local cache files with
other users on the same TaskTracker. The cache files are checked at the client side for public/private
access on the file system, and that information is passed in the configuration. The TaskTrackers
look at the configuration for each file during task localization, and, if the file was public
on the filesystem, they are localized to a common space for sharing by all users' tasks on
the TaskTracker. Else the file is localized to the user's private directory on the local filesystem.

> Support in DistributedCache to share cache files with other users after HADOOP-4493
> -----------------------------------------------------------------------------------
>                 Key: MAPREDUCE-744
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-744
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: distributed-cache, security, tasktracker
>            Reporter: Vinod K V
>            Assignee: Devaraj Das
>             Fix For: 0.22.0
>         Attachments: 744-1.patch, 744-2.patch, 744-3.patch, 744-4.patch, 744-5.patch,
744-6-y20.patch, 744-6.patch, 744-early.patch
> HADOOP-4493 aims to completely privatize the files distributed to TT via DistributedCache.
This jira issues focuses on sharing some/all of these files with all other users.

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