On Tue, Sep 20, 2016 at 11:26 AM, Wido den Hollander <wido@xxxxxxxx> wrote: > >> Op 20 september 2016 om 19:27 schreef Gregory Farnum <gfarnum@xxxxxxxxxx>: >> >> >> In librados getting a stat is basically equivalent to reading a small >> object; there's not an index or anything so FileStore needs to descend its >> folder hierarchy. If looking at metadata for all the objects in the system >> efficiently is important you'll want to layer an index in somewhere. >> -Greg >> > > Should we expect a improvement here with BlueStore vs FileStore? That would basically be a RocksDB lookup on the OSD, right? I think it will be at least a little better, since as you say it's a RocksDB lookup? But I haven't paid BlueStore a ton of attention and even that will cost a lot more than something like a mostly-in-memory database. -Greg _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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