You are viewing a plain text version of this content. The canonical link for it is here.
Posted to hdfs-dev@hadoop.apache.org by "Bikas Saha (Created) (JIRA)" <ji...@apache.org> on 2012/03/15 03:44:38 UTC
[jira] [Created] (HDFS-3096) dfs.datanode.data.dir.perm is set to
755 instead of 700
dfs.datanode.data.dir.perm is set to 755 instead of 700
-------------------------------------------------------
Key: HDFS-3096
URL: https://issues.apache.org/jira/browse/HDFS-3096
Project: Hadoop HDFS
Issue Type: Bug
Components: data-node
Affects Versions: 1.0.0, 0.23.0
Reporter: Bikas Saha
Assignee: Bikas Saha
Fix For: 0.23.2, 1.0.2
dfs.datanode.data.dir.perm is used by the datanode to set the permissions of it data directories. This is set by default to 755 which gives read permissions to everyone to that directory, opening up possibility of reading the data blocks by anyone in a secure cluster. Admins can over-ride this config but its sub-optimal practice for the default to be weak. IMO, the default should be strong and the admins can relax it if necessary.
The fix is to change default permissions to 700.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira