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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4705) [HOD] Grant read permissions for files/directories created by hod as part of provisioning hadoop clusters
Date Fri, 05 Dec 2008 07:58:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12653675#action_12653675
] 

Hemanth Yamijala commented on HADOOP-4705:
------------------------------------------

Following some offline discussions between Marco and others, we decided the following:

- It was OK to open up permissions for the job tracker history file to be group readable.
There is no sensitive data there to be of a problem in shared clusters.
- This would require changes in both HOD and Hadoop. HOD creates the directories where the
history files are created, and it should set the execute bit on them. Hadoop should create
the history files with the right permissions.

In view of this, I've filed HADOOP-4782 for addressing this in HOD and HADOOP-4783 for addressing
this in Hadoop.

> [HOD] Grant read permissions for files/directories created by hod as part of provisioning
hadoop clusters
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-4705
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4705
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: contrib/hod
>            Reporter: Hemanth Yamijala
>            Assignee: Hemanth Yamijala
>             Fix For: 0.20.0
>
>         Attachments: hadoop-4705-1.txt, hadoop-4705-2.txt, hadoop-4705-3.txt, hadoop-4705.txt
>
>
> When HOD creates the log, work and temp directories for Hadoop, it creates them with
permissions 0700. This is too restrictive for applications like Chukwa which need access to
files in this directory for generating Hadoop metrics. This is a request to allow read permissions
to other applications.

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