Something about it is blocking the cluster. I would first try running this command. If that doesn't work, then I would restart the daemon.
# ceph osd down 13
Marking it down should force it to reassert itself to the cluster without restarting the daemon and stopping any operations it's working on. Also while it's down, the secondary OSDs for the PG should be able to handle the requests that are blocked. Check it's log to see what it's doing.
You didn't answer what your size and min_size are for your 2 pools.
On Fri, Jun 23, 2017 at 3:11 PM Daniel Davidson <danield@xxxxxxxxxxxxxxxx> wrote:
Thanks for the response:
[root@ceph-control ~]# ceph health detail | grep 'ops are blocked'
100 ops are blocked > 134218 sec on osd.13
[root@ceph-control ~]# ceph osd blocked-by
osd num_blocked
A problem with osd.13?
Dan
On 06/23/2017 02:03 PM, David Turner wrote:
# ceph health detail | grep 'ops are blocked'# ceph osd blocked-by
My guess is that you have an OSD that is in a funky state blocking the requests and the peering. Let me know what the output of those commands are.
Also what are the replica sizes of your 2 pools? It shows that only 1 OSD was last active for the 2 inactive PGs. Not sure yet if that is anything of concern, but didn't want to ignore it.
On Fri, Jun 23, 2017 at 1:16 PM Daniel Davidson <danield@xxxxxxxxxxxxxxxx> wrote:
Two of our OSD systems hit 75% disk utilization, so I added another
system to try and bring that back down. The system was usable for a day
while the data was being migrated, but now the system is not responding
when I try to mount it:
mount -t ceph ceph-0,ceph-1,ceph-2,ceph-3:6789:/ /home -o
name=admin,secretfile=/etc/ceph/admin.secret
mount error 5 = Input/output error
Here is our ceph health
[root@ceph-3 ~]# ceph -s
cluster 7bffce86-9d7b-4bdf-a9c9-67670e68ca77
health HEALTH_ERR
2 pgs are stuck inactive for more than 300 seconds
58 pgs backfill_wait
20 pgs backfilling
3 pgs degraded
2 pgs stuck inactive
76 pgs stuck unclean
2 pgs undersized
100 requests are blocked > 32 sec
recovery 1197145/653713908 objects degraded (0.183%)
recovery 47420551/653713908 objects misplaced (7.254%)
mds0: Behind on trimming (180/30)
mds0: Client biologin-0 failing to respond to capability
release
mds0: Many clients (20) failing to respond to cache pressure
monmap e3: 4 mons at
election epoch 542, quorum 0,1,2,3 ceph-0,ceph-1,ceph-2,ceph-3
fsmap e17666: 1/1/1 up {0=ceph-0=up:active}, 3 up:standby
osdmap e25535: 32 osds: 32 up, 32 in; 78 remapped pgs
flags sortbitwise,require_jewel_osds
pgmap v19199544: 1536 pgs, 2 pools, 786 TB data, 299 Mobjects
1595 TB used, 1024 TB / 2619 TB avail
1197145/653713908 objects degraded (0.183%)
47420551/653713908 objects misplaced (7.254%)
1448 active+clean
58 active+remapped+wait_backfill
17 active+remapped+backfilling
10 active+clean+scrubbing+deep
2 undersized+degraded+remapped+backfilling+peered
1 active+degraded+remapped+backfilling
recovery io 906 MB/s, 331 objects/s
Checking in on the inactive PGs
[root@ceph-control ~]# ceph health detail |grep inactive
HEALTH_ERR 2 pgs are stuck inactive for more than 300 seconds; 58 pgs
backfill_wait; 20 pgs backfilling; 3 pgs degraded; 2 pgs stuck inactive;
78 pgs stuck unclean; 2 pgs undersized; 100 requests are blocked > 32
sec; 1 osds have slow requests; recovery 1197145/653713908 objects
degraded (0.183%); recovery 47390082/653713908 objects misplaced
(7.249%); mds0: Behind on trimming (180/30); mds0: Client biologin-0
failing to respond to capability release; mds0: Many clients (20)
failing to respond to cache pressure
pg 2.1b5 is stuck inactive for 77215.112164, current state
undersized+degraded+remapped+backfilling+peered, last acting [13]
pg 2.145 is stuck inactive for 76910.328647, current state
undersized+degraded+remapped+backfilling+peered, last acting [13]
If I query, then I dont get a response:
[root@ceph-control ~]# ceph pg 2.1b5 query
Any ideas on what to do?
Dan
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