Default OSD settings for compression and the pool has `compression_mode: aggressive`. From my understanding, that should not bother compressing anything except for the specific pool. First I tested this with an EC data pool, but it didn't compress anything. I thought this might be a thing with EC sharding so I tested with a replica pool with 100 copies of the same 10GB file and 1TB of zero's. Neither test seemed to show any compression.
On Wed, Jun 27, 2018 at 6:38 AM Igor Fedotov <ifedo...@suse.de> wrote: > And yes - first 3 parameters from this list are the right and the only way > to inspect compression effectiveness so far. > > > Corresponding updates to show that with "ceph df" are on the way and are > targeted for Nautilus. > > > Thanks, > > Igor > > On 6/26/2018 4:53 PM, David Turner wrote: > > ceph daemon osd.1 perf dump | grep bluestore | grep compress > "bluestore_compressed": 0, > "bluestore_compressed_allocated": 0, > "bluestore_compressed_original": 0, > "bluestore_extent_compress": 35372, > > I filled up an RBD in a compressed pool (aggressive) in my test cluster > with 1TB of zeros. The bluestore OSDs in the cluster all show similar to > this. Am I missing something here? Is there any other method to > determining compression ratios? > > On Tue, Dec 5, 2017 at 1:25 AM Rafał Wądołowski < > rwadolow...@cloudferro.com> wrote: > >> Finally, I've founded the command: >> >> >> ceph daemon osd.1 perf dump | grep bluestore >> >> >> And there you have compressed data >> Regards, >> >> Rafał Wądołowski >> >> >> http://cloudferro.com/ >> On 04.12.2017 14:17, Rafał Wądołowski wrote: >> >> Hi, >> >> Is there any command or tool to show effectiveness of bluestore >> compression? >> >> I see the difference (in ceph osd df tree), while uploading a object to >> ceph, but maybe there are more friendly method to do it. >> >> >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> > > > _______________________________________________ > ceph-users mailing > listceph-us...@lists.ceph.comhttp://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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