I changed the logging to "error" to get rid of these messages as I was
wondering if this was part of the problem. It didn't change the
performance.
Also, I get these same errors both before and after the reboot. I only
see the slowdown after the reboot.
I have SELinux disabled. Not sure about ACL. Don't think I can turn
ACL off on XFS.
I am happy to post results of strace. Do I just do 'strace tar -xPf
boost.tar >& strace.log'?
David
------ Original Message ------
From: "Jeff Darcy" <[email protected]>
To: "David Robinson" <[email protected]>
Cc: [email protected]; "Gluster Devel"
<[email protected]>
Sent: 8/18/2015 4:49:40 PM
Subject: Re: [Gluster-users] gluster small file performance
Note: The log files attached have the "No data available" messages
parsed out to reduce the file size. There were an enormous amount of
these. One of my colleagues submitted something to the message board
about these errors in 3.7.3.
[2015-08-17 17:03:37.270219] W [fuse-bridge.c:1230:fuse_err_cbk]
0-glusterfs-fuse: 6643: REMOVEXATTR()
/boost_1_57_0/boost/accumulators/accumulators.hpp => -1 (No data
available)
[2015-08-17 17:03:37.271004] W [fuse-bridge.c:1230:fuse_err_cbk]
0-glusterfs-fuse: 6646: REMOVEXATTR()
/boost_1_57_0/boost/accumulators/accumulators.hpp => -1 (No data
available)
[2015-08-17 17:03:37.271663] W [fuse-bridge.c:1230:fuse_err_cbk]
0-glusterfs-fuse: 6648: REMOVEXATTR()
/boost_1_57_0/boost/accumulators/accumulators.hpp => -1 (No data
available)
[2015-08-17 17:03:37.274273] W [fuse-bridge.c:1230:fuse_err_cbk]
0-glusterfs-fuse: 6662: REMOVEXATTR()
/boost_1_57_0/boost/accumulators/accumulators_fwd.hpp => -1 (No data
available)
I can't help but wonder how much these are affecting your performance.
That's a lot of extra messages, and even more effort to log the
failures. When I run your tests myself, I don't see any of these and I
don't see a performance drop-off either. Maybe something ACL- or
SELinux-related? It would be extra-helpful to get a stack trace for
just one of these, to see where they're coming from.
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