Resolution confirmed!
$ ceph -s
cluster:
id: eea7b78c-b138-40fc-9f3e-3d77afb770f0
health: HEALTH_OK
services:
mon: 3 daemons, quorum desktop,mon1,nuc2
mgr: desktop(active), standbys: mon1
osd: 3 osds: 3 up, 3 in
data:
pools: 19 pools, 372 pgs
objects: 54243 objects, 71722 MB
usage: 129 GB used, 27812 GB / 27941 GB avail
pgs: 372 active+clean
On Tue, Jul 18, 2017 at 8:47 PM Roger Brown <rogerpbrown@xxxxxxxxx> wrote:
Ah, that was the problem!So I edited the crushmap (http://docs.ceph.com/docs/master/rados/operations/crush-map/) with a weight of 10.000 for all three 10TB OSD hosts. The instant result was all those pgs with only 2 OSDs were replaced with 3 OSDs while the cluster started rebalancing the data. I trust it will complete with time and I'll be good to go!New OSD tree:$ ceph osd treeID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY-1 30.00000 root default-5 10.00000 host osd13 10.00000 osd.3 up 1.00000 1.00000-6 10.00000 host osd24 10.00000 osd.4 up 1.00000 1.00000-2 10.00000 host osd30 10.00000 osd.0 up 1.00000 1.00000Kudos to Brad Hubbard for steering me in the right direction!On Tue, Jul 18, 2017 at 8:27 PM Brad Hubbard <bhubbard@xxxxxxxxxx> wrote:ID WEIGHT TYPE NAME
-5 1.00000 host osd1
-6 9.09560 host osd2
-2 9.09560 host osd3
The weight allocated to host "osd1" should presumably be the same as
the other two hosts?
Dump your crushmap and take a good look at it, specifically the
weighting of "osd1".
On Wed, Jul 19, 2017 at 11:48 AM, Roger Brown <rogerpbrown@xxxxxxxxx> wrote:
> I also tried ceph pg query, but it gave no helpful recommendations for any
> of the stuck pgs.
>
>
> On Tue, Jul 18, 2017 at 7:45 PM Roger Brown <rogerpbrown@xxxxxxxxx> wrote:
>>
>> Problem:
>> I have some pgs with only two OSDs instead of 3 like all the other pgs
>> have. This is causing active+undersized+degraded status.
>>
>> History:
>> 1. I started with 3 hosts, each with 1 OSD process (min_size 2) for a 1TB
>> drive.
>> 2. Added 3 more hosts, each with 1 OSD process for a 10TB drive.
>> 3. Removed the original 3 1TB OSD hosts from the osd tree (reweight 0,
>> wait, stop, remove, del osd&host, rm).
>> 4. The last OSD to be removed would never return to active+clean after
>> reweight 0. It returned undersized instead, but I went on with removal
>> anyway, leaving me stuck with 5 undersized pgs.
>>
>> Things tried that didn't help:
>> * give it time to go away on its own
>> * Replace replicated default.rgw.buckets.data pool with erasure-code 2+1
>> version.
>> * ceph osd lost 1 (and 2)
>> * ceph pg repair (pgs from dump_stuck)
>> * googled 'ceph pg undersized' and similar searches for help.
>>
>> Current status:
>> $ ceph osd tree
>> ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY
>> -1 19.19119 root default
>> -5 1.00000 host osd1
>> 3 1.00000 osd.3 up 1.00000 1.00000
>> -6 9.09560 host osd2
>> 4 9.09560 osd.4 up 1.00000 1.00000
>> -2 9.09560 host osd3
>> 0 9.09560 osd.0 up 1.00000 1.00000
>> $ ceph pg dump_stuck
>> ok
>> PG_STAT STATE UP UP_PRIMARY ACTING ACTING_PRIMARY
>> 88.3 active+undersized+degraded [4,0] 4 [4,0] 4
>> 97.3 active+undersized+degraded [4,0] 4 [4,0] 4
>> 85.6 active+undersized+degraded [4,0] 4 [4,0] 4
>> 87.5 active+undersized+degraded [0,4] 0 [0,4] 0
>> 70.0 active+undersized+degraded [0,4] 0 [0,4] 0
>> $ ceph osd pool ls detail
>> pool 70 'default.rgw.rgw.gc' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 4 pgp_num 4 last_change 548 flags hashpspool
>> stripe_width 0
>> pool 83 'default.rgw.buckets.non-ec' replicated size 3 min_size 2
>> crush_rule 0 object_hash rjenkins pg_num 8 pgp_num 8 last_change 576 owner
>> 18446744073709551615 flags hashpspool stripe_width 0
>> pool 85 'default.rgw.control' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 8 pgp_num 8 last_change 652 flags hashpspool
>> stripe_width 0
>> pool 86 'default.rgw.data.root' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 8 pgp_num 8 last_change 653 flags hashpspool
>> stripe_width 0
>> pool 87 'default.rgw.gc' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 8 pgp_num 8 last_change 654 flags hashpspool
>> stripe_width 0
>> pool 88 'default.rgw.lc' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 8 pgp_num 8 last_change 600 flags hashpspool
>> stripe_width 0
>> pool 89 'default.rgw.log' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 8 pgp_num 8 last_change 655 flags hashpspool
>> stripe_width 0
>> pool 90 'default.rgw.users.uid' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 8 pgp_num 8 last_change 662 flags hashpspool
>> stripe_width 0
>> pool 91 'default.rgw.users.email' replicated size 3 min_size 2 crush_rule
>> 0 object_hash rjenkins pg_num 8 pgp_num 8 last_change 660 flags hashpspool
>> stripe_width 0
>> pool 92 'default.rgw.users.keys' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 8 pgp_num 8 last_change 659 flags hashpspool
>> stripe_width 0
>> pool 93 'default.rgw.buckets.index' replicated size 3 min_size 2
>> crush_rule 0 object_hash rjenkins pg_num 8 pgp_num 8 last_change 664 flags
>> hashpspool stripe_width 0
>> pool 95 'default.rgw.intent-log' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 4 pgp_num 4 last_change 656 flags hashpspool
>> stripe_width 0
>> pool 96 'default.rgw.meta' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 4 pgp_num 4 last_change 657 flags hashpspool
>> stripe_width 0
>> pool 97 'default.rgw.usage' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 4 pgp_num 4 last_change 658 flags hashpspool
>> stripe_width 0
>> pool 98 'default.rgw.users.swift' replicated size 3 min_size 2 crush_rule
>> 0 object_hash rjenkins pg_num 4 pgp_num 4 last_change 661 flags hashpspool
>> stripe_width 0
>> pool 99 'default.rgw.buckets.extra' replicated size 3 min_size 2
>> crush_rule 0 object_hash rjenkins pg_num 4 pgp_num 4 last_change 663 flags
>> hashpspool stripe_width 0
>> pool 100 '.rgw.root' replicated size 3 min_size 2 crush_rule 0 object_hash
>> rjenkins pg_num 4 pgp_num 4 last_change 651 flags hashpspool stripe_width 0
>> pool 101 'default.rgw.reshard' replicated size 3 min_size 2 crush_rule 0
>> object_hash rjenkins pg_num 8 pgp_num 8 last_change 1529 owner
>> 18446744073709551615 flags hashpspool stripe_width 0
>> pool 103 'default.rgw.buckets.data' erasure size 3 min_size 2 crush_rule 1
>> object_hash rjenkins pg_num 256 pgp_num 256 last_change 2106 flags
>> hashpspool stripe_width 8192
>>
>> I'll keep on googling, but I'm open to advice!
>>
>> Thank you,
>>
>> Roger
>>
>
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--
Cheers,
Brad
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