Hi,
We had a BOF on Rebalance at the Gluster Summit to get feedback from
Gluster users.
- Performance has improved over the last few releases and it works well for
large files.
- However, it is still not fast enough on volumes which contain a lot of
directories and small files. The bottleneck appears to be the
single-threaded filesystem crawl.
- Scripts using the fix-layout and file migration virtual xattrs to
rebalance volumes which are available via the mount point would be helpful
- Rebalance is currently broken on volumes with ZFS bricks (and other FS
where fallocate is not available). A fix for this is being worked on [1]
and should be ready soon.
- The rebalance status output is satisfactory
Amar, Susant, Raghavendra, please add if I have missed something.
Regards,
Nithya
[1] https://review.gluster.org/18573
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