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
