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