I have had the same problem before with unfound objects that happened while
backfilling after losing a drive. We didn't lose drives outside of the
failure domains and ultimately didn't lose any data, but we did have to
wait until after all of the PGs in recovery_wait state were caught up.  So
if the 2 disks you lost were in the same host and your CRUSH rules are set
so that you can lose a host without losing data, then the cluster will
likely find all of the objects by the time it's done backfilling.  With
only losing 2 disks, I wouldn't worry about the missing objects not
becoming found unless you're pool size=2.

On Mon, Jan 22, 2018 at 11:47 AM Nico Schottelius <
[email protected]> wrote:

>
> Hello,
>
> we added about 7 new disks yesterday/today and our cluster became very
> slow. While the rebalancing took place, 2 of the 7 new added disks
> died.
>
> Our cluster is still recovering, however we spotted that there are a lot
> of unfound objects.
>
> We lost osd.63 and osd.64, which seem not to be involved into the sample
> pg that has unfound objects.
>
> We were wondering why there are unfound objects, where they are coming
> from and if there is a way to recover them?
>
> Any help appreciated,
>
> Best,
>
> Nico
>
>
> Our status is:
>
>   cluster:
>     id:     26c0c5a8-d7ce-49ac-b5a7-bfd9d0ba81ab
>     health: HEALTH_WARN
>             261953/3006663 objects misplaced (8.712%)
>             9377/1002221 objects unfound (0.936%)
>             Reduced data availability: 176 pgs inactive
>             Degraded data redundancy: 609338/3006663 objects degraded
> (20.266%), 243 pgs unclea
> n, 222 pgs degraded, 213 pgs undersized
>             mon server2 is low on available space
>
>   services:
>     mon: 3 daemons, quorum server5,server3,server2
>     mgr: server5(active), standbys: 2, server2, 0, server3
>     osd: 54 osds: 54 up, 54 in; 234 remapped pgs
>
>   data:
>     pools:   3 pools, 1344 pgs
>     objects: 978k objects, 3823 GB
>     usage:   9350 GB used, 40298 GB / 49648 GB avail
>     pgs:     13.095% pgs not active
>              609338/3006663 objects degraded (20.266%)
>              261953/3006663 objects misplaced (8.712%)
>              9377/1002221 objects unfound (0.936%)
>              1101 active+clean
>              84   recovery_wait+undersized+degraded+remapped+peered
>              82   undersized+degraded+remapped+backfill_wait+peered
>              23   active+undersized+degraded+remapped+backfill_wait
>              18   active+remapped+backfill_wait
>              14   active+undersized+degraded+remapped+backfilling
>              10   undersized+degraded+remapped+backfilling+peered
>              9    active+recovery_wait+degraded
>              3    active+remapped+backfilling
>
>   io:
>     client:   624 kB/s rd, 3255 kB/s wr, 22 op/s rd, 66 op/s wr
>     recovery: 90148 kB/s, 22 objects/s
>
> Looking at the unfound objects:
>
> [17:32:17] server1:~# ceph health detail
> HEALTH_WARN 263745/3006663 objects misplaced (8.772%); 9377/1002221
> objects unfound (0.936%); Reduced data availability: 176 pgs inactive;
> Degraded data redundancy: 612398/3006663 objects degraded (20.368%), 244
> pgs unclean, 223 pgs degraded, 214 pgs undersized; mon server2 is low on
> available space
> OBJECT_MISPLACED 263745/3006663 objects misplaced (8.772%)
> OBJECT_UNFOUND 9377/1002221 objects unfound (0.936%)
>     pg 4.fa has 117 unfound objects
>     pg 4.ff has 107 unfound objects
>     pg 4.fd has 113 unfound objects
>     pg 4.f0 has 120 unfound objects
>     ....
>
>
> Output from ceph pg 4.fa query:
>
> {
>     "state": "recovery_wait+undersized+degraded+remapped+peered",
>     "snap_trimq": "[]",
>     "epoch": 17561,
>     "up": [
>         8,
>         17,
>         25
>     ],
>     "acting": [
>         61
>     ],
>     "backfill_targets": [
>         "8",
>         "17",
>         "25"
>     ],
>     "actingbackfill": [
>         "8",
>         "17",
>         "25",
>         "61"
>     ],
>     "info": {
>         "pgid": "4.fa",
>         "last_update": "17529'85051",
>         "last_complete": "17217'77468",
>         "log_tail": "17091'75034",
>         "last_user_version": 85051,
>         "last_backfill": "MAX",
>         "last_backfill_bitwise": 0,
>         "purged_snaps": [
>             {
>                 "start": "1",
>                 "length": "3"
>             },
>             {
>                 "start": "6",
>                 "length": "8"
>             },
>             {
>                 "start": "10",
>                 "length": "2"
>             }
>         ],
>         "history": {
>             "epoch_created": 9134,
>             "epoch_pool_created": 9134,
>             "last_epoch_started": 17528,
>             "last_interval_started": 17527,
>             "last_epoch_clean": 17079,
>             "last_interval_clean": 17078,
>             "last_epoch_split": 0,
>             "last_epoch_marked_full": 0,
>             "same_up_since": 17143,
>             "same_interval_since": 17530,
>             "same_primary_since": 17515,
>             "last_scrub": "17090'57357",
>             "last_scrub_stamp": "2018-01-20 20:45:32.616142",
>             "last_deep_scrub": "17082'54734",
>             "last_deep_scrub_stamp": "2018-01-15 21:09:34.121488",
>             "last_clean_scrub_stamp": "2018-01-20 20:45:32.616142"
>         },
>         "stats": {
>             "version": "17529'85051",
>             "reported_seq": "218453",
>             "reported_epoch": "17561",
>             "state": "recovery_wait+undersized+degraded+remapped+peered",
>             "last_fresh": "2018-01-22 17:42:28.196701",
>             "last_change": "2018-01-22 15:00:46.507189",
>             "last_active": "2018-01-22 15:00:44.635399",
>             "last_peered": "2018-01-22 17:42:28.196701",
>             "last_clean": "2018-01-21 20:15:48.267209",
>             "last_became_active": "2018-01-22 14:53:07.918893",
>             "last_became_peered": "2018-01-22 15:00:46.437493",
>             "last_unstale": "2018-01-22 17:42:28.196701",
>             "last_undegraded": "2018-01-22 15:00:45.664468",
>             "last_fullsized": "2018-01-22 15:00:45.664468",
>             "mapping_epoch": 17530,
>             "log_start": "17091'75034",
>             "ondisk_log_start": "17091'75034",
>             "created": 9134,
>             "last_epoch_clean": 17079,
>             "parent": "0.0",
>             "parent_split_bits": 0,
>             "last_scrub": "17090'57357",
>             "last_scrub_stamp": "2018-01-20 20:45:32.616142",
>             "last_deep_scrub": "17082'54734",
>             "last_deep_scrub_stamp": "2018-01-15 21:09:34.121488",
>             "last_clean_scrub_stamp": "2018-01-20 20:45:32.616142",
>             "log_size": 10017,
>             "ondisk_log_size": 10017,
>             "stats_invalid": false,
>             "dirty_stats_invalid": false,
>             "omap_stats_invalid": false,
>             "hitset_stats_invalid": false,
>             "hitset_bytes_stats_invalid": false,
>             "pin_stats_invalid": false,
>             "stat_sum": {
>                 "num_bytes": 6112366592,
>                 "num_objects": 1503,
>                 "num_object_clones": 0,
>                 "num_object_copies": 4509,
>                 "num_objects_missing_on_primary": 117,
>                 "num_objects_missing": 0,
>                 "num_objects_degraded": 3123,
>                 "num_objects_misplaced": 1386,
>                 "num_objects_unfound": 117,
>                 "num_objects_dirty": 1503,
>                 "num_whiteouts": 0,
>                 "num_read": 165528,
>                 "num_read_kb": 3252584,
>                 "num_write": 87725,
>                 "num_write_kb": 14125516,
>                 "num_scrub_errors": 0,
>                 "num_shallow_scrub_errors": 0,
>                 "num_deep_scrub_errors": 0,
>                 "num_objects_recovered": 244,
>                 "num_bytes_recovered": 963108864,
>                 "num_keys_recovered": 0,
>                 "num_objects_omap": 0,
>                 "num_objects_hit_set_archive": 0,
>                 "num_bytes_hit_set_archive": 0,
>                 "num_flush": 0,
>                 "num_flush_kb": 0,
>                 "num_evict": 0,
>                 "num_evict_kb": 0,
>                 "num_promote": 0,
>                 "num_flush_mode_high": 0,
>                 "num_flush_mode_low": 0,
>                 "num_evict_mode_some": 0,
>                 "num_evict_mode_full": 0,
>                 "num_objects_pinned": 0,
>                 "num_legacy_snapsets": 0
>             },
>             "up": [
>                 8,
>                 17,
>                 25
>             ],
>             "acting": [
>                 61
>             ],
>             "blocked_by": [],
>             "up_primary": 8,
>             "acting_primary": 61
>         },
>         "empty": 0,
>         "dne": 0,
>         "incomplete": 0,
>         "last_epoch_started": 17528,
>         "hit_set_history": {
>             "current_last_update": "0'0",
>             "history": []
>         }
>     },
>     "peer_info": [
>         {
>             "peer": "8",
>             "pgid": "4.fa",
>             "last_update": "17529'85051",
>             "last_complete": "17529'85051",
>             "log_tail": "17091'75034",
>             "last_user_version": 85051,
>             "last_backfill": "MIN",
>             "last_backfill_bitwise": 1,
>             "purged_snaps": [
>                 {
>                     "start": "1",
>                     "length": "3"
>                 },
>                 {
>                     "start": "6",
>                     "length": "8"
>                 },
>                 {
>                     "start": "10",
>                     "length": "2"
>                 }
>             ],
>             "history": {
>                 "epoch_created": 9134,
>                 "epoch_pool_created": 9134,
>                 "last_epoch_started": 17528,
>                 "last_interval_started": 17527,
>                 "last_epoch_clean": 17079,
>                 "last_interval_clean": 17078,
>                 "last_epoch_split": 0,
>                 "last_epoch_marked_full": 0,
>                 "same_up_since": 17143,
>                 "same_interval_since": 17530,
>                 "same_primary_since": 17515,
>                 "last_scrub": "17090'57357",
>                 "last_scrub_stamp": "2018-01-20 20:45:32.616142",
>                 "last_deep_scrub": "17082'54734",
>                 "last_deep_scrub_stamp": "2018-01-15 21:09:34.121488",
>                 "last_clean_scrub_stamp": "2018-01-20 20:45:32.616142"
>             },
>             "stats": {
>                 "version": "0'0",
>                 "reported_seq": "3",
>                 "reported_epoch": "17097",
>                 "state": "peering",
>                 "last_fresh": "2018-01-21 20:15:49.798018",
>                 "last_change": "2018-01-21 20:15:49.786423",
>                 "last_active": "0.000000",
>                 "last_peered": "0.000000",
>                 "last_clean": "0.000000",
>                 "last_became_active": "0.000000",
>                 "last_became_peered": "0.000000",
>                 "last_unstale": "2018-01-21 20:15:49.798018",
>                 "last_undegraded": "2018-01-21 20:15:49.798018",
>                 "last_fullsized": "2018-01-21 20:15:49.798018",
>                 "mapping_epoch": 17530,
>                 "log_start": "0'0",
>                 "ondisk_log_start": "0'0",
>                 "created": 9134,
>                 "last_epoch_clean": 17079,
>                 "parent": "0.0",
>                 "parent_split_bits": 0,
>                 "last_scrub": "17090'57357",
>                 "last_scrub_stamp": "2018-01-20 20:45:32.616142",
>                 "last_deep_scrub": "17082'54734",
>                 "last_deep_scrub_stamp": "2018-01-15 21:09:34.121488",
>                 "last_clean_scrub_stamp": "2018-01-20 20:45:32.616142",
>                 "log_size": 0,
>                 "ondisk_log_size": 0,
>                 "stats_invalid": false,
>                 "dirty_stats_invalid": false,
>                 "omap_stats_invalid": false,
>                 "hitset_stats_invalid": false,
>                 "hitset_bytes_stats_invalid": false,
>                 "pin_stats_invalid": false,
>                 "stat_sum": {
>                     "num_bytes": 0,
>                     "num_objects": 0,
>                     "num_object_clones": 0,
>                     "num_object_copies": 0,
>                     "num_objects_missing_on_primary": 0,
>                     "num_objects_missing": 0,
>                     "num_objects_degraded": 0,
>                     "num_objects_misplaced": 0,
>                     "num_objects_unfound": 0,
>                     "num_objects_dirty": 0,
>                     "num_whiteouts": 0,
>                     "num_read": 0,
>                     "num_read_kb": 0,
>                     "num_write": 0,
>                     "num_write_kb": 0,
>                     "num_scrub_errors": 0,
>                     "num_shallow_scrub_errors": 0,
>                     "num_deep_scrub_errors": 0,
>                     "num_objects_recovered": 0,
>                     "num_bytes_recovered": 0,
>                     "num_keys_recovered": 0,
>                     "num_objects_omap": 0,
>                     "num_objects_hit_set_archive": 0,
>                     "num_bytes_hit_set_archive": 0,
>                     "num_flush": 0,
>                     "num_flush_kb": 0,
>                     "num_evict": 0,
>                     "num_evict_kb": 0,
>                     "num_promote": 0,
>                     "num_flush_mode_high": 0,
>                     "num_flush_mode_low": 0,
>                     "num_evict_mode_some": 0,
>                     "num_evict_mode_full": 0,
>                     "num_objects_pinned": 0,
>                     "num_legacy_snapsets": 0
>                 },
>                 "up": [
>                     8,
>                     17,
>                     25
>                 ],
>                 "acting": [
>                     61
>                 ],
>                 "blocked_by": [],
>                 "up_primary": 8,
>                 "acting_primary": 61
>             },
>             "empty": 0,
>             "dne": 0,
>             "incomplete": 1,
>             "last_epoch_started": 17528,
>             "hit_set_history": {
>                 "current_last_update": "0'0",
>                 "history": []
>             }
>         },
>         {
>             "peer": "17",
>             "pgid": "4.fa",
>             "last_update": "17529'85051",
>             "last_complete": "17529'85051",
>             "log_tail": "17091'75034",
>             "last_user_version": 85051,
>             "last_backfill": "MIN",
>             "last_backfill_bitwise": 1,
>             "purged_snaps": [
>                 {
>                     "start": "1",
>                     "length": "3"
>                 },
>                 {
>                     "start": "6",
>                     "length": "8"
>                 },
>                 {
>                     "start": "10",
>                     "length": "2"
>                 }
>             ],
>             "history": {
>                 "epoch_created": 9134,
>                 "epoch_pool_created": 9134,
>                 "last_epoch_started": 17528,
>                 "last_interval_started": 17527,
>                 "last_epoch_clean": 17079,
>                 "last_interval_clean": 17078,
>                 "last_epoch_split": 0,
>                 "last_epoch_marked_full": 0,
>                 "same_up_since": 17143,
>                 "same_interval_since": 17530,
>                 "same_primary_since": 17515,
>                 "last_scrub": "17090'57357",
>                 "last_scrub_stamp": "2018-01-20 20:45:32.616142",
>                 "last_deep_scrub": "17082'54734",
>                 "last_deep_scrub_stamp": "2018-01-15 21:09:34.121488",
>                 "last_clean_scrub_stamp": "2018-01-20 20:45:32.616142"
>             },
>             "stats": {
>                 "version": "0'0",
>                 "reported_seq": "0",
>                 "reported_epoch": "0",
>                 "state": "unknown",
>                 "last_fresh": "0.000000",
>                 "last_change": "0.000000",
>                 "last_active": "0.000000",
>                 "last_peered": "0.000000",
>                 "last_clean": "0.000000",
>                 "last_became_active": "0.000000",
>                 "last_became_peered": "0.000000",
>                 "last_unstale": "0.000000",
>                 "last_undegraded": "0.000000",
>                 "last_fullsized": "0.000000",
>                 "mapping_epoch": 17530,
>                 "log_start": "0'0",
>                 "ondisk_log_start": "0'0",
>                 "created": 0,
>                 "last_epoch_clean": 0,
>                 "parent": "0.0",
>                 "parent_split_bits": 0,
>                 "last_scrub": "0'0",
>                 "last_scrub_stamp": "0.000000",
>                 "last_deep_scrub": "0'0",
>                 "last_deep_scrub_stamp": "0.000000",
>                 "last_clean_scrub_stamp": "0.000000",
>                 "log_size": 0,
>                 "ondisk_log_size": 0,
>                 "stats_invalid": false,
>                 "dirty_stats_invalid": false,
>                 "omap_stats_invalid": false,
>                 "hitset_stats_invalid": false,
>                 "hitset_bytes_stats_invalid": false,
>                 "pin_stats_invalid": false,
>                 "stat_sum": {
>                     "num_bytes": 0,
>                     "num_objects": 0,
>                     "num_object_clones": 0,
>                     "num_object_copies": 0,
>                     "num_objects_missing_on_primary": 0,
>                     "num_objects_missing": 0,
>                     "num_objects_degraded": 0,
>                     "num_objects_misplaced": 0,
>                     "num_objects_unfound": 0,
>                     "num_objects_dirty": 0,
>                     "num_whiteouts": 0,
>                     "num_read": 0,
>                     "num_read_kb": 0,
>                     "num_write": 0,
>                     "num_write_kb": 0,
>                     "num_scrub_errors": 0,
>                     "num_shallow_scrub_errors": 0,
>                     "num_deep_scrub_errors": 0,
>                     "num_objects_recovered": 0,
>                     "num_bytes_recovered": 0,
>                     "num_keys_recovered": 0,
>                     "num_objects_omap": 0,
>                     "num_objects_hit_set_archive": 0,
>                     "num_bytes_hit_set_archive": 0,
>                     "num_flush": 0,
>                     "num_flush_kb": 0,
>                     "num_evict": 0,
>                     "num_evict_kb": 0,
>                     "num_promote": 0,
>                     "num_flush_mode_high": 0,
>                     "num_flush_mode_low": 0,
>                     "num_evict_mode_some": 0,
>                     "num_evict_mode_full": 0,
>                     "num_objects_pinned": 0,
>                     "num_legacy_snapsets": 0
>                 },
>                 "up": [
>                     8,
>                     17,
>                     25
>                 ],
>                 "acting": [
>                     61
>                 ],
>                 "blocked_by": [],
>                 "up_primary": 8,
>                 "acting_primary": 61
>             },
>             "empty": 0,
>             "dne": 0,
>             "incomplete": 1,
>             "last_epoch_started": 17528,
>             "hit_set_history": {
>                 "current_last_update": "0'0",
>                 "history": []
>             }
>         },
>         {
>             "peer": "20",
>             "pgid": "4.fa",
>             "last_update": "17138'75260",
>             "last_complete": "17138'75260",
>             "log_tail": "17090'73735",
>             "last_user_version": 75260,
>             "last_backfill": "MIN",
>             "last_backfill_bitwise": 1,
>             "purged_snaps": [
>                 {
>                     "start": "1",
>                     "length": "3"
>                 },
>                 {
>                     "start": "6",
>                     "length": "8"
>                 },
>                 {
>                     "start": "10",
>                     "length": "2"
>                 }
>             ],
>             "history": {
>                 "epoch_created": 9134,
>                 "epoch_pool_created": 9134,
>                 "last_epoch_started": 17121,
>                 "last_interval_started": 17120,
>                 "last_epoch_clean": 17079,
>                 "last_interval_clean": 17078,
>                 "last_epoch_split": 0,
>                 "last_epoch_marked_full": 0,
>                 "same_up_since": 17143,
>                 "same_interval_since": 17530,
>                 "same_primary_since": 17515,
>                 "last_scrub": "17090'57357",
>                 "last_scrub_stamp": "2018-01-20 20:45:32.616142",
>                 "last_deep_scrub": "17082'54734",
>                 "last_deep_scrub_stamp": "2018-01-15 21:09:34.121488",
>                 "last_clean_scrub_stamp": "2018-01-20 20:45:32.616142"
>             },
>             "stats": {
>                 "version": "0'0",
>                 "reported_seq": "0",
>                 "reported_epoch": "0",
>                 "state": "unknown",
>                 "last_fresh": "0.000000",
>                 "last_change": "0.000000",
>                 "last_active": "0.000000",
>                 "last_peered": "0.000000",
>                 "last_clean": "0.000000",
>                 "last_became_active": "0.000000",
>                 "last_became_peered": "0.000000",
>                 "last_unstale": "0.000000",
>                 "last_undegraded": "0.000000",
>                 "last_fullsized": "0.000000",
>                 "mapping_epoch": 17530,
>                 "log_start": "0'0",
>                 "ondisk_log_start": "0'0",
>                 "created": 0,
>                 "last_epoch_clean": 0,
>                 "parent": "0.0",
>                 "parent_split_bits": 0,
>                 "last_scrub": "0'0",
>                 "last_scrub_stamp": "0.000000",
>                 "last_deep_scrub": "0'0",
>                 "last_deep_scrub_stamp": "0.000000",
>                 "last_clean_scrub_stamp": "0.000000",
>                 "log_size": 0,
>                 "ondisk_log_size": 0,
>                 "stats_invalid": false,
>                 "dirty_stats_invalid": false,
>                 "omap_stats_invalid": false,
>                 "hitset_stats_invalid": false,
>                 "hitset_bytes_stats_invalid": false,
>                 "pin_stats_invalid": false,
>                 "stat_sum": {
>                     "num_bytes": 0,
>                     "num_objects": 0,
>                     "num_object_clones": 0,
>                     "num_object_copies": 0,
>                     "num_objects_missing_on_primary": 0,
>                     "num_objects_missing": 0,
>                     "num_objects_degraded": 0,
>                     "num_objects_misplaced": 0,
>                     "num_objects_unfound": 0,
>                     "num_objects_dirty": 0,
>                     "num_whiteouts": 0,
>                     "num_read": 0,
>                     "num_read_kb": 0,
>                     "num_write": 0,
>                     "num_write_kb": 0,
>                     "num_scrub_errors": 0,
>                     "num_shallow_scrub_errors": 0,
>                     "num_deep_scrub_errors": 0,
>                     "num_objects_recovered": 0,
>                     "num_bytes_recovered": 0,
>                     "num_keys_recovered": 0,
>                     "num_objects_omap": 0,
>                     "num_objects_hit_set_archive": 0,
>                     "num_bytes_hit_set_archive": 0,
>                     "num_flush": 0,
>                     "num_flush_kb": 0,
>                     "num_evict": 0,
>                     "num_evict_kb": 0,
>                     "num_promote": 0,
>                     "num_flush_mode_high": 0,
>                     "num_flush_mode_low": 0,
>                     "num_evict_mode_some": 0,
>                     "num_evict_mode_full": 0,
>                     "num_objects_pinned": 0,
>                     "num_legacy_snapsets": 0
>                 },
>                 "up": [
>                     8,
>                     17,
>                     25
>                 ],
>                 "acting": [
>                     61
>                 ],
>                 "blocked_by": [],
>                 "up_primary": 8,
>                 "acting_primary": 61
>             },
>             "empty": 0,
>             "dne": 0,
>             "incomplete": 1,
>             "last_epoch_started": 17121,
>             "hit_set_history": {
>                 "current_last_update": "0'0",
>                 "history": []
>             }
>         },
>         {
>             "peer": "25",
>             "pgid": "4.fa",
>             "last_update": "17529'85051",
>             "last_complete": "17529'85051",
>             "log_tail": "17091'75034",
>             "last_user_version": 85051,
>             "last_backfill": "MIN",
>             "last_backfill_bitwise": 1,
>             "purged_snaps": [
>                 {
>                     "start": "1",
>                     "length": "3"
>                 },
>                 {
>                     "start": "6",
>                     "length": "8"
>                 },
>                 {
>                     "start": "10",
>                     "length": "2"
>                 }
>             ],
>             "history": {
>                 "epoch_created": 9134,
>                 "epoch_pool_created": 9134,
>                 "last_epoch_started": 17528,
>                 "last_interval_started": 17527,
>                 "last_epoch_clean": 17079,
>                 "last_interval_clean": 17078,
>                 "last_epoch_split": 0,
>                 "last_epoch_marked_full": 0,
>                 "same_up_since": 17143,
>                 "same_interval_since": 17530,
>                 "same_primary_since": 17515,
>                 "last_scrub": "17090'57357",
>                 "last_scrub_stamp": "2018-01-20 20:45:32.616142",
>                 "last_deep_scrub": "17082'54734",
>                 "last_deep_scrub_stamp": "2018-01-15 21:09:34.121488",
>                 "last_clean_scrub_stamp": "2018-01-20 20:45:32.616142"
>             },
>             "stats": {
>                 "version": "0'0",
>                 "reported_seq": "0",
>                 "reported_epoch": "0",
>                 "state": "unknown",
>                 "last_fresh": "0.000000",
>                 "last_change": "0.000000",
>                 "last_active": "0.000000",
>                 "last_peered": "0.000000",
>                 "last_clean": "0.000000",
>                 "last_became_active": "0.000000",
>                 "last_became_peered": "0.000000",
>                 "last_unstale": "0.000000",
>                 "last_undegraded": "0.000000",
>                 "last_fullsized": "0.000000",
>                 "mapping_epoch": 17530,
>                 "log_start": "0'0",
>                 "ondisk_log_start": "0'0",
>                 "created": 0,
>                 "last_epoch_clean": 0,
>                 "parent": "0.0",
>                 "parent_split_bits": 0,
>                 "last_scrub": "0'0",
>                 "last_scrub_stamp": "0.000000",
>                 "last_deep_scrub": "0'0",
>                 "last_deep_scrub_stamp": "0.000000",
>                 "last_clean_scrub_stamp": "0.000000",
>                 "log_size": 0,
>                 "ondisk_log_size": 0,
>                 "stats_invalid": false,
>                 "dirty_stats_invalid": false,
>                 "omap_stats_invalid": false,
>                 "hitset_stats_invalid": false,
>                 "hitset_bytes_stats_invalid": false,
>                 "pin_stats_invalid": false,
>                 "stat_sum": {
>                     "num_bytes": 0,
>                     "num_objects": 0,
>                     "num_object_clones": 0,
>                     "num_object_copies": 0,
>                     "num_objects_missing_on_primary": 0,
>                     "num_objects_missing": 0,
>                     "num_objects_degraded": 0,
>                     "num_objects_misplaced": 0,
>                     "num_objects_unfound": 0,
>                     "num_objects_dirty": 0,
>                     "num_whiteouts": 0,
>                     "num_read": 0,
>                     "num_read_kb": 0,
>                     "num_write": 0,
>                     "num_write_kb": 0,
>                     "num_scrub_errors": 0,
>                     "num_shallow_scrub_errors": 0,
>                     "num_deep_scrub_errors": 0,
>                     "num_objects_recovered": 0,
>                     "num_bytes_recovered": 0,
>                     "num_keys_recovered": 0,
>                     "num_objects_omap": 0,
>                     "num_objects_hit_set_archive": 0,
>                     "num_bytes_hit_set_archive": 0,
>                     "num_flush": 0,
>                     "num_flush_kb": 0,
>                     "num_evict": 0,
>                     "num_evict_kb": 0,
>                     "num_promote": 0,
>                     "num_flush_mode_high": 0,
>                     "num_flush_mode_low": 0,
>                     "num_evict_mode_some": 0,
>                     "num_evict_mode_full": 0,
>                     "num_objects_pinned": 0,
>                     "num_legacy_snapsets": 0
>                 },
>                 "up": [
>                     8,
>                     17,
>                     25
>                 ],
>                 "acting": [
>                     61
>                 ],
>                 "blocked_by": [],
>                 "up_primary": 8,
>                 "acting_primary": 61
>             },
>             "empty": 0,
>             "dne": 0,
>             "incomplete": 1,
>             "last_epoch_started": 17528,
>             "hit_set_history": {
>                 "current_last_update": "0'0",
>                 "history": []
>             }
>         }
>     ],
>     "recovery_state": [
>         {
>             "name": "Started/Primary/Active",
>             "enter_time": "2018-01-22 15:00:45.664496",
>             "might_have_unfound": [
>                 {
>                     "osd": "8",
>                     "status": "already probed"
>                 },
>                 {
>                     "osd": "17",
>                     "status": "already probed"
>                 },
>                 {
>                     "osd": "20",
>                     "status": "already probed"
>                 },
>                 {
>                     "osd": "25",
>                     "status": "already probed"
>                 },
>                 {
>                     "osd": "63",
>                     "status": "osd is down"
>                 },
>                 {
>                     "osd": "64",
>                     "status": "osd is down"
>                 }
>             ],
>             "recovery_progress": {
>                 "backfill_targets": [
>                     "8",
>                     "17",
>                     "25"
>                 ],
>                 "waiting_on_backfill": [],
>                 "last_backfill_started": "MIN",
>                 "backfill_info": {
>                     "begin": "MIN",
>                     "end": "MIN",
>                     "objects": []
>                 },
>                 "peer_backfill_info": [],
>                 "backfills_in_flight": [],
>                 "recovering": [],
>                 "pg_backend": {
>                     "pull_from_peer": [],
>                     "pushing": []
>                 }
>             },
>             "scrub": {
>                 "scrubber.epoch_start": "17078",
>                 "scrubber.active": false,
>                 "scrubber.state": "INACTIVE",
>                 "scrubber.start": "MIN",
>                 "scrubber.end": "MIN",
>                 "scrubber.subset_last_update": "0'0",
>                 "scrubber.deep": false,
>                 "scrubber.seed": 0,
>                 "scrubber.waiting_on": 0,
>                 "scrubber.waiting_on_whom": []
>             }
>         },
>         {
>             "name": "Started",
>             "enter_time": "2018-01-22 15:00:45.613486"
>         }
>     ],
>     "agent_state": {}
> }
>
>
> ID CLASS WEIGHT   TYPE NAME        STATUS REWEIGHT PRI-AFF
> -1       48.94531 root default
> -6       11.88382     host server1
> 25   hdd  4.59999         osd.25       up  1.00000 1.00000
> 61   hdd  4.59999         osd.61       up  1.00000 1.00000
> 48   ssd  0.22198         osd.48       up  1.00000 1.00000
> 49   ssd  0.22198         osd.49       up  1.00000 1.00000
> 50   ssd  0.22198         osd.50       up  1.00000 1.00000
> 51   ssd  0.22699         osd.51       up  1.00000 1.00000
> 52   ssd  0.22198         osd.52       up  1.00000 1.00000
> 53   ssd  0.22198         osd.53       up  1.00000 1.00000
> 54   ssd  0.22198         osd.54       up  1.00000 1.00000
> 55   ssd  0.22699         osd.55       up  1.00000 1.00000
> 56   ssd  0.22198         osd.56       up  1.00000 1.00000
> 57   ssd  0.22198         osd.57       up  1.00000 1.00000
> 58   ssd  0.22699         osd.58       up  1.00000 1.00000
> 59   ssd  0.22699         osd.59       up  1.00000 1.00000
> -2       11.95193     host server2
> 21   hdd  4.59999         osd.21       up  1.00000 1.00000
> 24   hdd  4.59999         osd.24       up  1.00000 1.00000
>  0   ssd  0.68799         osd.0        up  1.00000 1.00000
>  4   ssd  0.68799         osd.4        up  1.00000 1.00000
>  6   ssd  0.68799         osd.6        up  1.00000 1.00000
> 10   ssd  0.68799         osd.10       up  1.00000 1.00000
> -3        6.61287     host server3
> 20   hdd  4.59999         osd.20       up  1.00000 1.00000
>  1   ssd  0.22198         osd.1        up  1.00000 1.00000
>  7   ssd  0.22198         osd.7        up  1.00000 1.00000
> 12   ssd  0.22198         osd.12       up  1.00000 1.00000
> 15   ssd  0.22699         osd.15       up  1.00000 1.00000
> 23   ssd  0.22198         osd.23       up  1.00000 1.00000
> 27   ssd  0.22198         osd.27       up  1.00000 1.00000
> 29   ssd  0.22699         osd.29       up  1.00000 1.00000
> 33   ssd  0.22198         osd.33       up  1.00000 1.00000
> 42   ssd  0.22699         osd.42       up  1.00000 1.00000
> -5        6.61287     host server4
> 17   hdd  4.59999         osd.17       up  1.00000 1.00000
>  3   ssd  0.22198         osd.3        up  1.00000 1.00000
> 11   ssd  0.22198         osd.11       up  1.00000 1.00000
> 16   ssd  0.22699         osd.16       up  1.00000 1.00000
> 19   ssd  0.22198         osd.19       up  1.00000 1.00000
> 28   ssd  0.22198         osd.28       up  1.00000 1.00000
> 37   ssd  0.22198         osd.37       up  1.00000 1.00000
> 41   ssd  0.22198         osd.41       up  1.00000 1.00000
> 43   ssd  0.22699         osd.43       up  1.00000 1.00000
> 46   ssd  0.22699         osd.46       up  1.00000 1.00000
> -4       11.88382     host server5
>  8   hdd  4.59999         osd.8        up  1.00000 1.00000
> 13   hdd  4.59999         osd.13       up  1.00000 1.00000
>  2   ssd  0.22198         osd.2        up  1.00000 1.00000
>  5   ssd  0.22198         osd.5        up  1.00000 1.00000
>  9   ssd  0.22198         osd.9        up  1.00000 1.00000
> 14   ssd  0.22699         osd.14       up  1.00000 1.00000
> 18   ssd  0.22198         osd.18       up  1.00000 1.00000
> 22   ssd  0.22198         osd.22       up  1.00000 1.00000
> 26   ssd  0.22198         osd.26       up  1.00000 1.00000
> 30   ssd  0.22699         osd.30       up  1.00000 1.00000
> 36   ssd  0.22198         osd.36       up  1.00000 1.00000
> 40   ssd  0.22198         osd.40       up  1.00000 1.00000
> 45   ssd  0.22699         osd.45       up  1.00000 1.00000
> 47   ssd  0.22699         osd.47       up  1.00000 1.00000
>
>
> --
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