> Op 23 december 2016 om 16:05 schreef Wido den Hollander <wido@xxxxxxxx>: > > > > > Op 22 december 2016 om 19:00 schreef Orit Wasserman <owasserm@xxxxxxxxxx>: > > > > > > HI Maruis, > > > > On Thu, Dec 22, 2016 at 12:00 PM, Marius Vaitiekunas > > <mariusvaitiekunas@xxxxxxxxx> wrote: > > > On Thu, Dec 22, 2016 at 11:58 AM, Marius Vaitiekunas > > > <mariusvaitiekunas@xxxxxxxxx> wrote: > > >> > > >> Hi, > > >> > > >> 1) I've written before into mailing list, but one more time. We have big > > >> issues recently with rgw on jewel. because of leaked data - the rate is > > >> about 50GB/hour. > > >> > > >> We've hitted these bugs: > > >> rgw: fix put_acls for objects starting and ending with underscore > > >> (issue#17625, pr#11669, Orit Wasserman) > > >> > > >> Upgraded to jewel 10.2.5 - no luck. > > >> > > >> Also we've hitted this one: > > >> rgw: RGW loses realm/period/zonegroup/zone data: period overwritten if > > >> somewhere in the cluster is still running Hammer (issue#17371, pr#11519, > > >> Orit Wasserman) > > >> > > >> Fixed zonemaps - also no luck. > > >> > > >> We do not use multisite - only default realm, zonegroup, zone. > > >> > > >> We have no more ideas, how these data leak could happen. gc is working - > > >> we can see it in rgw logs. > > >> > > >> Maybe, someone could give any hint about this? Where should we look? > > >> > > >> > > >> 2) Another story is about removing all the leaked/orphan objects. > > >> radosgw-admin orphans find enters the loop state on stage when it starts > > >> linking objects. > > >> > > >> We've tried to change the number of shards to 16, 64 (default), 512. At > > >> the moment it's running with shards number 1. > > >> > > >> Again, any ideas how to make orphan search happen? > > >> > > >> > > >> I could provide any logs, configs, etc. if someone is ready to help on > > >> this case. > > >> > > >> > > > > How many buckets do you have ? how many object in each? > > Can you provide the output of rados ls -p .rgw.buckets ? > > Marius asked me to look into this for him, so I did. > > What I found is that at *least* three buckets have way more RADOS objects then they should. > > The .rgw.buckets pool has 35.651.590 objects totaling 76880G. > > I listed all objects in the .rgw.buckets pool and summed them per bucket, the top 5: > > 783844 default.25918901.102486 > 876013 default.25918901.3 > 3325825 default.24201682.7 > 6324217 default.84795862.29891 > 7805208 default.25933378.233873 > > So I started to rados_stat() (using Python) all the objects in the last three pools. While these stat() calls are still running. I statted about 30% of the objects and their total size is already 17511GB/17TB. > > size_kb_actual summed up for bucket default.24201682.7, default.84795862.29891 and default.25933378.233873 sums up to 12TB. > > So I'm currently at 30% of statting the objects and I'm already 5TB over the total size of these buckets. > The stat calls have finished. The grant total is 65TB. So while the buckets should consume only 12TB they seems to occupy 65TB of storage. > What I noticed is that it's mainly *shadow* objects which are all 4MB in size. > > I know that 'radosgw-admin orphans find --pool=.rgw.buckets --job-id=xyz' should also do this for me, but as mentioned, this keeps looping and hangs. > I started this tool about 20 hours ago: # radosgw-admin orphans find --pool=.rgw.buckets --job-id=wido1 --debug-rados=10 2>&1|gzip > orphans.find.wido1.log.gz It now shows me this in the logs while it is still running: 2016-12-24 13:41:00.989876 7ff6844d29c0 10 librados: omap-set-vals oid=orphan.scan.wido1.linked.27 nspace= 2016-12-24 13:41:00.993271 7ff6844d29c0 10 librados: Objecter returned from omap-set-vals r=0 storing 2 entries at orphan.scan.wido1.linked.28 2016-12-24 13:41:00.993311 7ff6844d29c0 10 librados: omap-set-vals oid=orphan.scan.wido1.linked.28 nspace= storing 1 entries at orphan.scan.wido1.linked.31 2016-12-24 13:41:00.995698 7ff6844d29c0 10 librados: Objecter returned from omap-set-vals r=0 2016-12-24 13:41:00.995787 7ff6844d29c0 10 librados: omap-set-vals oid=orphan.scan.wido1.linked.31 nspace= storing 1 entries at orphan.scan.wido1.linked.33 2016-12-24 13:41:00.997730 7ff6844d29c0 10 librados: Objecter returned from omap-set-vals r=0 2016-12-24 13:41:00.997776 7ff6844d29c0 10 librados: omap-set-vals oid=orphan.scan.wido1.linked.33 nspace= 2016-12-24 13:41:01.000161 7ff6844d29c0 10 librados: Objecter returned from omap-set-vals r=0 storing 1 entries at orphan.scan.wido1.linked.35 2016-12-24 13:41:01.000225 7ff6844d29c0 10 librados: omap-set-vals oid=orphan.scan.wido1.linked.35 nspace= 2016-12-24 13:41:01.002102 7ff6844d29c0 10 librados: Objecter returned from omap-set-vals r=0 storing 1 entries at orphan.scan.wido1.linked.36 2016-12-24 13:41:01.002167 7ff6844d29c0 10 librados: omap-set-vals oid=orphan.scan.wido1.linked.36 nspace= storing 1 entries at orphan.scan.wido1.linked.39 2016-12-24 13:41:01.004397 7ff6844d29c0 10 librados: Objecter returned from omap-set-vals r=0 It seems to still be doing something, is that correct? Wido > So for now I'll probably resort to figuring out which RADOS objects are obsolete by matching against the bucket's index, but that's a lot of manual work. > > I'd rather fix the orphans find, so I will probably run that with high logging enabled so we can have some interesting information. > > In the meantime, any hints or suggestions? > > The cluster is running v10.2.5 btw. > > > > > Orit > > > > > > > > Sorry. I forgot to mention, that we've registered two issues on tracker: > > > http://tracker.ceph.com/issues/18331 > > > http://tracker.ceph.com/issues/18258 > > > > > > -- > > > Marius Vaitiekūnas > > > > > > _______________________________________________ > > > 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 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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