2018-01-31 15:58 GMT+01:00 Bryan Banister <bbanis...@jumptrading.com>:
> > > > Given that this will move data around (I think), should we increase the > pg_num and pgp_num first and then see how it looks? > > > I guess adding pgs and pgps will move stuff around too, but if the PGCALC formula says you should have more then that would still be a good start. Still, a few manual reweights first to take the 85-90% ones down might be good, some move operations are going to refuse adding things to too-full OSDs, so you would not want to get accidentally bumped above such a limit due to some temp-data being created during moves. Also, dont bump pgs like crazy, you can never move down. Aim for getting ~100 per OSD at most, and perhaps even then in smaller steps so that the creation (and evening out of data to the new empty PGs) doesn't kill normal client I/O perf in the meantime. -- May the most significant bit of your life be positive.
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