Hi All...
Today we had a warning regarding 8 near full osd. Looking to the osds
occupation, 3 of them were above 90%. In order to solve the situation,
I've decided to reweigh those first using
ceph osd crush reweight osd.1 2.67719
ceph osd crush reweight osd.26 2.67719
ceph osd crush reweight osd.53 2.67719
Please note that I've started with a very conservative step since the
original weight for all osds was 2.72710.
After some rebalancing (which has now stopped) I've seen that the
cluster is currently in the following state
# ceph health detail
HEALTH_WARN 4 pgs backfill_toofull; 4 pgs stuck unclean; recovery
20/39433323 objects degraded (0.000%); recovery 77898/39433323
objects misplaced (0.198%); 8 near full osd(s); crush map has
legacy tunables (require bobtail, min is firefly)
pg 6.e2 is stuck unclean for 9578.920997, current state
active+remapped+backfill_toofull, last acting [49,38,11]
pg 6.4 is stuck unclean for 9562.054680, current state
active+remapped+backfill_toofull, last acting [53,6,26]
pg 5.24 is stuck unclean for 10292.469037, current state
active+remapped+backfill_toofull, last acting [32,13,51]
pg 5.306 is stuck unclean for 10292.448364, current state
active+remapped+backfill_toofull, last acting [44,7,59]
pg 5.306 is active+remapped+backfill_toofull, acting [44,7,59]
pg 5.24 is active+remapped+backfill_toofull, acting [32,13,51]
pg 6.4 is active+remapped+backfill_toofull, acting [53,6,26]
pg 6.e2 is active+remapped+backfill_toofull, acting [49,38,11]
recovery 20/39433323 objects degraded (0.000%)
recovery 77898/39433323 objects misplaced (0.198%)
osd.1 is near full at 88%
osd.14 is near full at 87%
osd.24 is near full at 86%
osd.26 is near full at 87%
osd.37 is near full at 87%
osd.53 is near full at 88%
osd.56 is near full at 85%
osd.62 is near full at 87%
crush map has legacy tunables (require bobtail, min is
firefly); see
http://ceph.com/docs/master/rados/operations/crush-map/#tunables
Not sure if it is worthwhile to mention, but after upgrading to Jewel,
our cluster shows the warnings regarding tunables. We still have not
migrated to the optimal tunables because the cluster will be very
actively used during the 3 next weeks ( due to one of the main
conference in our area) and we prefer to do that migration after this
peak period,
I am unsure what happen during the rebalacing but the mapping of these
4 stuck pgs seems strange, namely the up and acting osds are different.
# ceph pg dump_stuck unclean
ok
pg_stat state up up_primary acting acting_primary
6.e2 active+remapped+backfill_toofull [8,53,38] 8
[49,38,11] 49
6.4 active+remapped+backfill_toofull [53,24,6] 53
[53,6,26] 53
5.24 active+remapped+backfill_toofull [32,13,56] 32
[32,13,51] 32
5.306 active+remapped+backfill_toofull [44,60,26] 44
[44,7,59] 44
# ceph pg map 6.e2
osdmap e1054 pg 6.e2 (6.e2) -> up [8,53,38] acting [49,38,11]
# ceph pg map 6.4
osdmap e1054 pg 6.4 (6.4) -> up [53,24,6] acting [53,6,26]
# ceph pg map 5.24
osdmap e1054 pg 5.24 (5.24) -> up [32,13,56] acting [32,13,51]
# ceph pg map 5.306
osdmap e1054 pg 5.306 (5.306) -> up [44,60,26] acting [44,7,59]
To complete this information, I am also sending the output of pg query
for one of these problematic pgs (ceph pg 5.306 query) after this email.
What should be the procedure to try to recover those PGS before
continuing with the reweighing?
Than you in advance
Goncalo
# ceph pg 5.306 query
{
"state": "active+remapped+backfill_toofull",
"snap_trimq": "[]",
"epoch": 1054,
"up": [
44,
60,
26
],
"acting": [
44,
7,
59
],
"backfill_targets": [
"26",
"60"
],
"actingbackfill": [
"7",
"26",
"44",
"59",
"60"
],
"info": {
"pgid": "5.306",
"last_update": "1005'55174",
"last_complete": "1005'55174",
"log_tail": "1005'52106",
"last_user_version": 55174,
"last_backfill": "MAX",
"last_backfill_bitwise": 0,
"purged_snaps": "[]",
"history": {
"epoch_created": 339,
"last_epoch_started": 1016,
"last_epoch_clean": 996,
"last_epoch_split": 0,
"last_epoch_marked_full": 0,
"same_up_since": 1015,
"same_interval_since": 1015,
"same_primary_since": 928,
"last_scrub": "1005'55169",
"last_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_deep_scrub": "1005'55169",
"last_deep_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_clean_scrub_stamp": "2016-07-19 14:31:45.790871"
},
"stats": {
"version": "1005'55174",
"reported_seq": "39726",
"reported_epoch": "1049",
"state": "active+remapped+backfill_toofull",
"last_fresh": "2016-07-20 01:55:43.224525",
"last_change": "2016-07-20 00:47:02.045700",
"last_active": "2016-07-20 01:55:43.224525",
"last_peered": "2016-07-20 01:55:43.224525",
"last_clean": "2016-07-20 00:34:36.197721",
"last_became_active": "2016-07-20 00:36:21.224010",
"last_became_peered": "2016-07-20 00:36:21.224010",
"last_unstale": "2016-07-20 01:55:43.224525",
"last_undegraded": "2016-07-20 01:55:43.224525",
"last_fullsized": "2016-07-20 01:55:43.224525",
"mapping_epoch": 995,
"log_start": "1005'52106",
"ondisk_log_start": "1005'52106",
"created": 339,
"last_epoch_clean": 996,
"parent": "0.0",
"parent_split_bits": 0,
"last_scrub": "1005'55169",
"last_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_deep_scrub": "1005'55169",
"last_deep_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_clean_scrub_stamp": "2016-07-19 14:31:45.790871",
"log_size": 3068,
"ondisk_log_size": 3068,
"stats_invalid": false,
"dirty_stats_invalid": false,
"omap_stats_invalid": false,
"hitset_stats_invalid": false,
"hitset_bytes_stats_invalid": false,
"pin_stats_invalid": true,
"stat_sum": {
"num_bytes": 0,
"num_objects": 230,
"num_object_clones": 0,
"num_object_copies": 1150,
"num_objects_missing_on_primary": 0,
"num_objects_missing": 0,
"num_objects_degraded": 0,
"num_objects_misplaced": 920,
"num_objects_unfound": 0,
"num_objects_dirty": 230,
"num_whiteouts": 0,
"num_read": 12454,
"num_read_kb": 217518,
"num_write": 55524,
"num_write_kb": 228743,
"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": 230,
"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
},
"up": [
44,
60,
26
],
"acting": [
44,
7,
59
],
"blocked_by": [],
"up_primary": 44,
"acting_primary": 44
},
"empty": 0,
"dne": 0,
"incomplete": 0,
"last_epoch_started": 1016,
"hit_set_history": {
"current_last_update": "0'0",
"history": []
}
},
"peer_info": [
{
"peer": "7",
"pgid": "5.306",
"last_update": "1005'55174",
"last_complete": "1005'55174",
"log_tail": "1005'52106",
"last_user_version": 55174,
"last_backfill": "MAX",
"last_backfill_bitwise": 0,
"purged_snaps": "[]",
"history": {
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"last_epoch_started": 1016,
"last_epoch_clean": 996,
"last_epoch_split": 0,
"last_epoch_marked_full": 0,
"same_up_since": 1015,
"same_interval_since": 1015,
"same_primary_since": 928,
"last_scrub": "1005'55169",
"last_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_deep_scrub": "1005'55169",
"last_deep_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_clean_scrub_stamp": "2016-07-19 14:31:45.790871"
},
"stats": {
"version": "1005'55173",
"reported_seq": "39711",
"reported_epoch": "1005",
"state": "active+clean",
"last_fresh": "2016-07-19 16:44:02.213143",
"last_change": "2016-07-19 14:31:45.791194",
"last_active": "2016-07-19 16:44:02.213143",
"last_peered": "2016-07-19 16:44:02.213143",
"last_clean": "2016-07-19 16:44:02.213143",
"last_became_active": "2016-06-27 04:57:38.897948",
"last_became_peered": "2016-06-27 04:57:38.897948",
"last_unstale": "2016-07-19 16:44:02.213143",
"last_undegraded": "2016-07-19 16:44:02.213143",
"last_fullsized": "2016-07-19 16:44:02.213143",
"mapping_epoch": 995,
"log_start": "1005'52106",
"ondisk_log_start": "1005'52106",
"created": 339,
"last_epoch_clean": 996,
"parent": "0.0",
"parent_split_bits": 0,
"last_scrub": "1005'55169",
"last_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_deep_scrub": "1005'55169",
"last_deep_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_clean_scrub_stamp": "2016-07-19 14:31:45.790871",
"log_size": 3067,
"ondisk_log_size": 3067,
"stats_invalid": false,
"dirty_stats_invalid": false,
"omap_stats_invalid": false,
"hitset_stats_invalid": false,
"hitset_bytes_stats_invalid": false,
"pin_stats_invalid": true,
"stat_sum": {
"num_bytes": 0,
"num_objects": 230,
"num_object_clones": 0,
"num_object_copies": 693,
"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": 230,
"num_whiteouts": 0,
"num_read": 12454,
"num_read_kb": 217518,
"num_write": 55524,
"num_write_kb": 228743,
"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": 230,
"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
},
"up": [
44,
60,
26
],
"acting": [
44,
7,
59
],
"blocked_by": [],
"up_primary": 44,
"acting_primary": 44
},
"empty": 0,
"dne": 0,
"incomplete": 0,
"last_epoch_started": 1016,
"hit_set_history": {
"current_last_update": "0'0",
"history": []
}
},
{
"peer": "26",
"pgid": "5.306",
"last_update": "1005'55174",
"last_complete": "1005'55174",
"log_tail": "1005'52174",
"last_user_version": 0,
"last_backfill": "MIN",
"last_backfill_bitwise": 1,
"purged_snaps": "[]",
"history": {
"epoch_created": 339,
"last_epoch_started": 1016,
"last_epoch_clean": 996,
"last_epoch_split": 0,
"last_epoch_marked_full": 0,
"same_up_since": 1015,
"same_interval_since": 1015,
"same_primary_since": 928,
"last_scrub": "1005'55169",
"last_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_deep_scrub": "1005'55169",
"last_deep_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_clean_scrub_stamp": "2016-07-19 14:31:45.790871"
},
"stats": {
"version": "0'0",
"reported_seq": "0",
"reported_epoch": "0",
"state": "inactive",
"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": 0,
"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",
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"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,
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"pin_stats_invalid": false,
"stat_sum": {
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"num_objects": 0,
"num_object_clones": 0,
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"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,
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"num_keys_recovered": 0,
"num_objects_omap": 0,
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"num_bytes_hit_set_archive": 0,
"num_flush": 0,
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},
"up": [],
"acting": [],
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"up_primary": -1,
"acting_primary": -1
},
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"last_epoch_started": 1016,
"hit_set_history": {
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"history": []
}
},
{
"peer": "59",
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"log_tail": "1005'52106",
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"history": {
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"last_scrub": "1005'55169",
"last_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_deep_scrub": "1005'55169",
"last_deep_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_clean_scrub_stamp": "2016-07-19 14:31:45.790871"
},
"stats": {
"version": "1005'55173",
"reported_seq": "39711",
"reported_epoch": "1005",
"state": "active+clean",
"last_fresh": "2016-07-19 16:44:02.213143",
"last_change": "2016-07-19 14:31:45.791194",
"last_active": "2016-07-19 16:44:02.213143",
"last_peered": "2016-07-19 16:44:02.213143",
"last_clean": "2016-07-19 16:44:02.213143",
"last_became_active": "2016-06-27 04:57:38.897948",
"last_became_peered": "2016-06-27 04:57:38.897948",
"last_unstale": "2016-07-19 16:44:02.213143",
"last_undegraded": "2016-07-19 16:44:02.213143",
"last_fullsized": "2016-07-19 16:44:02.213143",
"mapping_epoch": 995,
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"last_deep_scrub": "1005'55169",
"last_deep_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_clean_scrub_stamp": "2016-07-19 14:31:45.790871",
"log_size": 3067,
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"stats_invalid": false,
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"pin_stats_invalid": true,
"stat_sum": {
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"num_objects": 230,
"num_object_clones": 0,
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},
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60,
26
],
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44,
7,
59
],
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},
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"last_epoch_started": 1016,
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}
},
{
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"last_deep_scrub": "1005'55169",
"last_deep_scrub_stamp": "2016-07-19 14:31:45.790871",
"last_clean_scrub_stamp": "2016-07-19 14:31:45.790871"
},
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"state": "inactive",
"last_fresh": "0.000000",
"last_change": "0.000000",
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"last_unstale": "0.000000",
"last_undegraded": "0.000000",
"last_fullsized": "0.000000",
"mapping_epoch": 0,
"log_start": "0'0",
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"parent": "0.0",
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"last_scrub_stamp": "0.000000",
"last_deep_scrub": "0'0",
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},
"up": [],
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},
"empty": 0,
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"last_epoch_started": 1016,
"hit_set_history": {
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"history": []
}
}
],
"recovery_state": [
{
"name": "Started\/Primary\/Active",
"enter_time": "2016-07-20 00:36:21.091565",
"might_have_unfound": [],
"recovery_progress": {
"backfill_targets": [
"26",
"60"
],
"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": {
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"scrubber.active": 0,
"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": "2016-07-20 00:36:19.742892"
}
],
"agent_state": {}
}
--
Goncalo Borges
Research Computing
ARC Centre of Excellence for Particle Physics at the Terascale
School of Physics A28 | University of Sydney, NSW 2006
T: +61 2 93511937
