[HOD] Provide execute access to JT history directory path for group
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Key: HADOOP-4919
URL: https://issues.apache.org/jira/browse/HADOOP-4919
Project: Hadoop Core
Issue Type: Bug
Components: contrib/hod
Reporter: Hemanth Yamijala
Assignee: Peeyush Bishnoi
Fix For: 0.18.3
HADOOP-4782 was opened to discuss the right level of access required for Chukwa
to be able to read JT history logs under HOD provisioned directories. This was
in turn required because HADOOP-4705, which provided world readable rights for
all directories provisioned by HOD was found to be very unsecure for shared
clusters. As per discussions on these two jiras, we decided to NOT change HOD's
default behavior (of not granting access) for Hadoop 0.20, and providing very
restricted access for Hadoop 0.18.3 (only execute permissions for group on the
directory path until the history directory on the JT node).
HADOOP-4782 tracked the reversal of the changes in HADOOP-4705 for Hadoop 0.20.
This issue is being opened to make the restricted change in Hadoop 0.18.3. The
patch submitted on HADOOP-4782 for Hadoop 0.18.3 can just be uploaded here. I
am filing a new jira only because the nature of the fixes is different in
spirit for the two versions.
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