We've had this for a while. We just monitor memory usage and restart the mon
services when 1 or more reach 80%.
Sent from my iPhone
> On Nov 18, 2016, at 3:35 AM, Corin Langosch <corin.lango...@netskin.com>
> wrote:
>
> Hi,
>
> about 2 weeks ago I upgraded a rather small cluster from ceph 0.94.2 to
> 0.94.9. The upgrade went fine, the cluster is running stable. But I just
> noticed that one monitor is already eating 20 GB of memory, growing slowly
> over time. The other 2 mons look fine. The disk space used by the problematic
> mon looks fine too.
>
> ceph -w
> cluster 4ac0e21b-6ea2-4ac7-8114-122bd9ba55d6
> health HEALTH_OK
> monmap e5: 3 mons at
> {a=10.0.0.5:6789/0,b=10.0.0.6:6789/0,c=10.0.0.7:6789/0}
> election epoch 856, quorum 0,1,2 a,b,c
> osdmap e27838: 19 osds: 9 up, 9 in
> pgmap v104865438: 4096 pgs, 1 pools, 3225 GB data, 809 kobjects
> 6463 GB used, 1955 GB / 8419 GB avail
> 4096 active+clean
> client io 1484 kB/s rd, 14217 kB/s wr, 2026 op/s
>
>
> ps aux | grep ceph
> root 5958 1.2 15.7 21194296 20821228 ? Sl Nov05 238:33
> /usr/bin/ceph-mon -i c --pid-file /var/run/ceph/mon.c.pid -c
> /etc/ceph/ceph.conf --cluster ceph
> root 7457 38.5 0.3 1660028 509008 ? Ssl Nov05 7125:00
> /usr/bin/ceph-osd -i 18 --pid-file /var/run/ceph/osd.18.pid -c
> /etc/ceph/ceph.conf --cluster ceph
> root 7981 25.8 0.4 1661064 543684 ? Ssl Nov05 4775:44
> /usr/bin/ceph-osd -i 9 --pid-file /var/run/ceph/osd.9.pid -c
> /etc/ceph/ceph.conf --cluster ceph
>
>
> ps aux | grep ceph
> root 12704 2.0 0.1 532184 93468 ? Sl Nov05 374:16
> /usr/bin/ceph-mon -i a --pid-file /var/run/ceph/mon.a.pid -c
> /etc/ceph/ceph.conf --cluster ceph
> root 14587 32.3 0.8 1682720 581752 ? Ssl Nov05 5970:53
> /usr/bin/ceph-osd -i 16 --pid-file /var/run/ceph/osd.16.pid -c
> /etc/ceph/ceph.conf --cluster ceph
> root 14919 28.8 0.7 1680144 526052 ? Ssl Nov05 5328:17
> /usr/bin/ceph-osd -i 3 --pid-file /var/run/ceph/osd.3.pid -c
> /etc/ceph/ceph.conf --cluster ceph
>
>
> ps aux | grep ceph
> root 19114 1.3 0.2 508000 157724 ? Sl Nov05 256:53
> /usr/bin/ceph-mon -i b --pid-file /var/run/ceph/mon.b.pid -c
> /etc/ceph/ceph.conf --cluster ceph
> root 20155 34.3 0.7 1652784 516072 ? Ssl Nov05 6341:37
> /usr/bin/ceph-osd -i 17 --pid-file /var/run/ceph/osd.17.pid -c
> /etc/ceph/ceph.conf --cluster ceph
> root 20508 33.2 0.7 1666276 510496 ? Ssl Nov05 6135:04
> /usr/bin/ceph-osd -i 6 --pid-file /var/run/ceph/osd.6.pid -c
> /etc/ceph/ceph.conf --cluster ceph
>
>
> dpkg -l | grep ceph
> ii ceph 0.94.9-1trusty
> amd64 distributed storage and file system
> ii ceph-common 0.94.9-1trusty
> amd64 common utilities to mount and interact with a ceph storage
> cluster
> ii ceph-fs-common 0.94.9-1trusty
> amd64 common utilities to mount and interact with a ceph file system
> ii ceph-fuse 0.94.9-1trusty
> amd64 FUSE-based client for the Ceph distributed file system
> ii ceph-mds 0.94.9-1trusty
> amd64 metadata server for the ceph distributed file system
> ii ceph-test 0.94.9-1trusty
> amd64 Ceph test and benchmarking tools
> ii libcephfs1 0.94.9-1trusty
> amd64 Ceph distributed file system client library
> ii python-cephfs 0.94.9-1trusty
> amd64 Python libraries for the Ceph libcephfs library
>
> /var/lib/ceph/mon/ceph-c# du -h
> 108K ./auth
> 88K ./auth_gv
> 2.1M ./logm
> 2.0M ./logm_gv
> 24K ./mdsmap
> 4.0K ./mdsmap_gv
> 4.0K ./mkfs
> 40K ./monmap
> 20K ./monmap_gv
> 4.2M ./osdmap
> 15M ./osdmap_full
> 4.2M ./osdmap_gv
> 13M ./pgmap
> 2.0M ./pgmap_gv
> 201M ./store.db
> 243M .
>
> Is this a known bug? Any workaround or fix available?
>
> Thanks
> Corin
>
________________________________
[cid:imageee4aef.JPG@8bdea070.45933187]<https://storagecraft.com> David
Turner | Cloud Operations Engineer | StorageCraft Technology
Corporation<https://storagecraft.com>
380 Data Drive Suite 300 | Draper | Utah | 84020
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