> Op 7 november 2017 om 22:54 schreef Scottix <scottix@xxxxxxxxx>: > > > Hey, > I recently updated to luminous and started deploying bluestore osd nodes. I > normally set osd_max_backfills = 1 and then ramp up as time progresses. > > Although with bluestore it seems like I wasn't able to do this on the fly > like I used to with XFS. > > ceph tell osd.* injectargs '--osd-max-backfills 5' > > osd.34: osd_max_backfills = '5' > osd.35: osd_max_backfills = '5' rocksdb_separate_wal_dir = 'false' (not > observed, change may require restart) > osd.36: osd_max_backfills = '5' > osd.37: osd_max_backfills = '5' > > As I incorporate more bluestore osds not being able to control this is > going to drastically affect recovery speed and with the default as 1, on a > big rebalance, I would be afraid restarting a bunch of osd. > Are you sure the backfills are really not increasing? If you re-run the command, what does it output? I've seen this as well, but the backfills seemed to increase anyway. Wido > Any advice in how to control this better? > > Thanks, > Scott > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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