Has anyone saw something like this: osd id == 2147483647 (2147483647 == 2^31 - 1). Looks like some int casting bug but I have no idea where to look for it (and I don't know exact steps to reproduce this - I was just doing osd in/osd out multiple times to test recovery speed under some client load). mon-01-01525673-bc76-433e-8a68-12578d797b1c:~ # ceph --version ceph version 0.80.9 (b5a67f0e1d15385bc0d60a6da6e7fc810bde6047) mon-01-01525673-bc76-433e-8a68-12578d797b1c:~ # ceph osd tree # id weight type name up/down reweight -1 65.04 root default -3 21.68 rack v2_2 -2 21.68 host cephhost-v3-6T-1600-1 0 5.42 osd.0 up 1 5 5.42 osd.5 up 1 7 5.42 osd.7 up 1 9 5.42 osd.9 up 1 -5 21.68 rack v2_1 -4 21.68 host cephhost-v3-6T-1600-3 1 5.42 osd.1 up 1 3 5.42 osd.3 up 1 6 5.42 osd.6 up 1 10 5.42 osd.10 up 1 -7 21.68 rack v2_0 -6 21.68 host cephhost-v3-6T-1600-2 2 5.42 osd.2 up 1 4 5.42 osd.4 up 1 8 5.42 osd.8 up 1 11 5.42 osd.11 up 1 mon-01-01525673-bc76-433e-8a68-12578d797b1c:~ # ceph -s cluster 01525673-bc76-433e-8a68-12578d797b1c health HEALTH_WARN 7 pgs stuck unclean; recovery 7018/585688 objects degraded (1.198%) monmap e1: 3 mons at {mon-01-01525673-bc76-433e-8a68-12578d797b1c=xx.yy.192.50:6789/0,mon-02-01525673-bc76-433e-8a68-12578d797b1c=xx.yy.196.150:6789/0,mon-03-01525673-bc76-433e-8a68-12578d797b1c=xx.yy.196.50:6789/0}, election epoch 124, quorum 0,1,2 mon-01-01525673-bc76-433e-8a68-12578d797b1c,mon-03-01525673-bc76-433e-8a68-12578d797b1c,mon-02-01525673-bc76-433e-8a68-12578d797b1c osdmap e749: 12 osds: 12 up, 12 in pgmap v354398: 256 pgs, 4 pools, 657 GB data, 164 kobjects 1553 GB used, 65097 GB / 66651 GB avail 7018/585688 objects degraded (1.198%) 249 active+clean 7 active+remapped client io 8564 kB/s wr, 4282 op/s mon-01-01525673-bc76-433e-8a68-12578d797b1c:~ # ceph health detail HEALTH_WARN 7 pgs stuck unclean; recovery 7018/585688 objects degraded (1.198%) pg 4.6 is stuck unclean for 65882.220407, current state active+remapped, last acting [2,5,2147483647,3,6] pg 4.3d is stuck unclean for 329578.358665, current state active+remapped, last acting [10,11,6,2147483647,7] pg 4.26 is stuck unclean for 65921.804191, current state active+remapped, last acting [7,2,2147483647,6,10] pg 4.4 is stuck unclean for 67215.534376, current state active+remapped, last acting [0,6,2147483647,8,1] pg 4.2e is stuck unclean for 67215.524683, current state active+remapped, last acting [4,0,6,2147483647,1] pg 4.1f is stuck unclean for 67215.518614, current state active+remapped, last acting [11,1,5,2147483647,6] pg 4.b is stuck unclean for 65882.230284, current state active+remapped, last acting [0,2147483647,3,6,2] recovery 7018/585688 objects degraded (1.198%) mon-01-01525673-bc76-433e-8a68-12578d797b1c:~ # ceph osd dump epoch 749 fsid 01525673-bc76-433e-8a68-12578d797b1c created 2015-05-14 10:15:08.505823 modified 2015-05-26 07:11:55.702597 flags pool 0 'data' replicated size 3 min_size 2 crush_ruleset 0 object_hash rjenkins pg_num 64 pgp_num 64 last_change 1 flags hashpspool crash_replay_interval 45 stripe_width 0 pool 1 'metadata' replicated size 3 min_size 2 crush_ruleset 0 object_hash rjenkins pg_num 64 pgp_num 64 last_change 1 flags hashpspool stripe_width 0 pool 2 'rbd' replicated size 3 min_size 2 crush_ruleset 0 object_hash rjenkins pg_num 64 pgp_num 64 last_change 1 flags hashpspool stripe_width 0 pool 4 'ecpool' erasure size 5 min_size 3 crush_ruleset 2 object_hash rjenkins pg_num 64 pgp_num 64 last_change 37 flags hashpspool stripe_width 4128 max_osd 12 osd.0 up in weight 1 up_from 562 up_thru 728 down_at 560 last_clean_interval [556,559) xx.yy.196.51:6800/13911 xx.yy.210.50:6800/13911 xx.yy.210.50:6801/13911 xx.yy.196.51:6801/13911 exists,up 9383bc9b-e9b5-43ed-9508-51dc03027be4 osd.1 up in weight 1 up_from 717 up_thru 742 down_at 687 last_clean_interval [562,686) xx.yy.196.151:6800/12122 xx.yy.210.150:6800/12122 xx.yy.210.150:6801/12122 xx.yy.196.151:6801/12122 exists,up 870f7364-e258-47bc-83db-bd08f0881480 osd.2 up in weight 1 up_from 562 up_thru 748 down_at 560 last_clean_interval [557,559) xx.yy.192.51:6800/19295 xx.yy.208.50:6800/19295 xx.yy.208.50:6802/19295 xx.yy.192.51:6801/19295 exists,up 0f47c22b-b1e8-4329-93f6-1f0be320b4fe osd.3 up in weight 1 up_from 675 up_thru 729 down_at 660 last_clean_interval [562,662) xx.yy.196.152:6800/13559 xx.yy.210.151:6800/13559 xx.yy.210.151:6801/13559 xx.yy.196.152:6801/13559 exists,up 714322e7-9b30-42c1-849d-10051dd4c070 osd.4 up in weight 1 up_from 562 up_thru 738 down_at 560 last_clean_interval [557,559) xx.yy.192.52:6800/19660 xx.yy.208.51:6800/19660 xx.yy.208.51:6801/19660 xx.yy.192.52:6801/19660 exists,up db93930d-fe02-499d-ab23-a68d023336c8 osd.5 up in weight 1 up_from 561 up_thru 735 down_at 560 last_clean_interval [557,559) xx.yy.196.52:6800/29702 xx.yy.210.51:6800/29702 xx.yy.210.51:6802/29702 xx.yy.196.52:6801/29702 exists,up 688ffcd6-ce68-4714-afa1-ea5963f40faf osd.6 up in weight 1 up_from 562 up_thru 741 down_at 560 last_clean_interval [558,559) xx.yy.196.153:6800/2705 xx.yy.210.152:6800/2705 xx.yy.210.152:6802/2705 xx.yy.196.153:6801/2705 exists,up 9b9f09cf-0a0f-4e34-85d9-e95660bc2e0a osd.7 up in weight 1 up_from 563 up_thru 744 down_at 562 last_clean_interval [557,559) xx.yy.196.53:6801/29560 xx.yy.210.52:6800/29560 xx.yy.210.52:6801/29560 xx.yy.196.53:6802/29560 exists,up c6e7bbd0-b060-4ddf-90e7-dacbb0c38c0a osd.8 up in weight 1 up_from 562 up_thru 740 down_at 560 last_clean_interval [558,559) xx.yy.192.53:6800/15749 xx.yy.208.52:6801/15749 xx.yy.208.52:6802/15749 xx.yy.192.53:6801/15749 exists,up 5e40b427-b93d-4465-91ec-457395b71ddd osd.9 up in weight 1 up_from 563 up_thru 707 down_at 562 last_clean_interval [557,559) xx.yy.196.54:6801/28813 xx.yy.210.53:6800/28813 xx.yy.210.53:6802/28813 xx.yy.196.54:6802/28813 exists,up 184e6b4d-4b19-4ee1-af94-507b349344d0 osd.10 up in weight 1 up_from 672 up_thru 689 down_at 658 last_clean_interval [561,659) xx.yy.196.154:6800/882 xx.yy.210.153:6800/882 xx.yy.210.153:6801/882 xx.yy.196.154:6801/882 exists,up 8a0807b3-548b-47fd-a4a2-f40c981753b0 osd.11 up in weight 1 up_from 563 up_thru 722 down_at 562 last_clean_interval [558,559) xx.yy.192.54:6800/15610 xx.yy.208.53:6800/15610 xx.yy.208.53:6802/15610 xx.yy.192.54:6802/15610 exists,up f1e462c0-e844-4290-8c71-f35d778641bd pg_temp 4.4 [0,6,2147483647,8,1] pg_temp 4.6 [2,5,2147483647,3,6] pg_temp 4.b [0,2147483647,3,6,2] pg_temp 4.1f [11,1,5,2147483647,6] pg_temp 4.26 [7,2,2147483647,6,10] pg_temp 4.2e [4,0,6,2147483647,1] pg_temp 4.3d [10,11,6,2147483647,7] -- PS