Are you mounting -o writeback?
On Fri, Mar 29, 2013 at 12:28 PM, Andy <ary...@allantgroup.com> wrote: > I have been having performance issues from time to time on our > production ocfs2 volumes, so I set up a test system to try to reproduce > what I was seeing on the production systems. This is what I found out: > > I have a 2 node test system sharing a 2TB volume with a journal size of > 256MB. I can easily trigger the slowdown by starting to processes to > write a 10GB file each, then I delete a different large file (7GB+) > while the other processes are writing. The slowdown is significant and > very disruptive. Not only did it take over 3 minutes to delete the > file, every else with pause when entering that directory too. A du > command with stop and nfs access to that file system will think the > server is not responding. Under heavier amounts of writes, I have had a > delete takes 13mins for a 8GB file, and NFS mounts return I/O errors. > We often deal with large files, so this situation above is fairly common. > > I would like any ideas that would provide smoother performance of the > OCFS2 volume and somehow eliminate the long pauses during deletes. > > Thanks, > > Andy > > _______________________________________________ > Ocfs2-users mailing list > Ocfs2-users@oss.oracle.com > https://oss.oracle.com/mailman/listinfo/ocfs2-users >
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