Thanks for confirming, logged http://tracker.ceph.com/issues/22419 > -----Original Message----- > From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of > Stefan Kooman > Sent: 12 December 2017 20:35 > To: Nick Fisk <nick@xxxxxxxxxx> > Cc: ceph-users@xxxxxxxxxxxxxx > Subject: Re: Bluestore Compression not inheriting pool option > > Quoting Nick Fisk (nick@xxxxxxxxxx): > > Hi All, > > > > Has anyone been testing the bluestore pool compression option? > > > > I have set compression=snappy on a RBD pool. When I add a new > > bluestore OSD, data is not being compressed when backfilling, > > confirmed by looking at the perf dump results. If I then set again the > > compression type on the pool to snappy, then immediately data starts > > getting compressed. It seems like when a new OSD joins the cluster, it > > doesn't pick up the existing compression setting on the pool. > > > > Anyone seeing anything similar? I will raise a bug if anyone can confirm. > > Yes. I tried to reproduce your issue and I'm seeing the same thing. The things > I did to reproduce: > > - check for compressed objects beforehand on osd (no compressed objects > where there) > > - remove one of the osds in the cluster > > - ceph osd pool set CEPH-TEST-ONE compression_algorithm snappy > - ceph osd pool set CEPH-TEST-ONE compression_mode force > - rbd clone a rbd image > - let cluster heal again > - check for compressed bluestore objects on "new" osd (ceph daemon osd.0 > perf dump | grep blue): > > "bluestore_compressed": 0, > "bluestore_compressed_allocated": 0, > "bluestore_compressed_original": 0 > > - check for compressed bluestore objects on already existing osd (ceph > daemon > osd.1 perf dump | grep blue): > > "bluestore_compressed": 2991873, > "bluestore_compressed_allocated": 3637248, > "bluestore_compressed_original": 10895360, > > Gr. Stefan > > -- > | BIT BV http://www.bit.nl/ Kamer van Koophandel 09090351 > | GPG: 0xD14839C6 +31 318 648 688 / info@xxxxxx > _______________________________________________ > 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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