[Lustre-discuss] File access quetsion

Ms. Megan Larko dobsonunit at gmail.com
Thu Jun 24 06:42:25 PDT 2010


Hi,

I'm following-up on my own question on 0100 file access as initially
appeared in Lustre-discuss Digest, Vol 53, Issue 3.

Having a legitimate need for some execute-only programs to run on the
cluster system, we noted the behavior that a file 0100 did execute on
a non-Lustre (ext3) file system but did not execute (permission
denied) on a Lustre 1.6.7.2_3-2.6.2.16.60_0.42.9  (SLES10SP2 kernel
2.6.16.60-0.42.9-smp).     Robin Humble filed bug number 22376 on 16
March 2010 regarding Lustre 1.8.2 for the same behavior.   NOTE:
RHumble comment #2 stated that the "permission denied" error did not
occur for her on her 2.6.18-128 kernel with Lustre version 1.6.7.2!

The Lustre Bugzilla for 22376 reports that the issue is fixed in 1.8.3
and also in the initial 2.0.0 versions of Lustre.  As RHumble did not
have the same behavior in Lustre 1.6..7.2, there were no references to
any changes to that line.

More reason to upgrade the Lustre system.

Cheers!
megan



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