Hey everyone, I've got an EC pool as part of our cephfs for colder data. When we started using it, compression was still marked experimental. Since then it has become stable so I turned compression on to "aggressive". Using 'ceph df detail' I can see that new data is getting compressed. We have a good chunk of data (~1P) that hasn't been through the compression side of things that I would love to get squished.
I know there currently isn't a way to do this in place and requires a new copy to be made so I made a simple script to "wiggle" the data. If the file is older than the date I turned compression on, and the file size is >64k: rsync the file to a new file sitting right next to the old one, delete the old one then move the new file into it's place. New inode = new file = compressed data! In theory, this works awesome. In practice however I'm not seeing the needles move as my script goes through. Does anyone have any ideas into what I may have missed for this dance? -paul Side note: People with file names that include quotes, pipes and spaces should get their accounts disabled by default. -- Paul Mezzanini Sr Systems Administrator / Engineer, Research Computing Information & Technology Services Finance & Administration Rochester Institute of Technology o:(585) 475-3245 | pfm...@rit.edu CONFIDENTIALITY NOTE: The information transmitted, including attachments, is intended only for the person(s) or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and destroy any copies of this information. ------------------------ _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
