Re: Urgent: Reduced data availability / All pgs inactive

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Hi,

You have problems with MRG. 
http://docs.ceph.com/docs/master/rados/operations/pg-states/
The ceph-mgr hasn’t yet received any information about the PG’s state from an OSD since mgr started up.

чт, 21 февр. 2019 г. в 09:04, Irek Fasikhov <malmyzh@xxxxxxxxx>:
Hi,

You have problems with MRG. 
The ceph-mgr hasn’t yet received any information about the PG’s state from an OSD since mgr started up.


ср, 20 февр. 2019 г. в 23:10, Ranjan Ghosh <ghosh@xxxxxx>:

Hi all,

hope someone can help me. After restarting a node of my 2-node-cluster suddenly I get this:

root@yak2 /var/www/projects # ceph -s
  cluster:
    id:     749b2473-9300-4535-97a6-ee6d55008a1b
    health: HEALTH_WARN
            Reduced data availability: 200 pgs inactive

  services:
    mon: 3 daemons, quorum yak1,yak2,yak0
    mgr: yak0.planwerk6.de(active), standbys: yak1.planwerk6.de, yak2.planwerk6.de
    mds: cephfs-1/1/1 up  {0=yak1.planwerk6.de=up:active}, 1 up:standby
    osd: 2 osds: 2 up, 2 in

  data:
    pools:   2 pools, 200 pgs
    objects: 0  objects, 0 B
    usage:   0 B used, 0 B / 0 B avail
    pgs:     100.000% pgs unknown
             200 unknown

And this:


root@yak2 /var/www/projects # ceph health detail
HEALTH_WARN Reduced data availability: 200 pgs inactive
PG_AVAILABILITY Reduced data availability: 200 pgs inactive
    pg 1.34 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.35 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.36 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.37 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.38 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.39 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.3a is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.3b is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.3c is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.3d is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.3e is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.3f is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.40 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.41 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.42 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.43 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.44 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.45 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.46 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.47 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.48 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.49 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.4a is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.4b is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.4c is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 1.4d is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.34 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.35 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.36 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.38 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.39 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.3a is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.3b is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.3c is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.3d is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.3e is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.3f is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.40 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.41 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.42 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.43 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.44 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.45 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.46 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.47 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.48 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.49 is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.4a is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.4b is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.4e is stuck inactive for 3506.815664, current state unknown, last acting []
    pg 2.4f is stuck inactive for 3506.815664, current state unknown, last acting []

But if I query an individual PG I get this:

root@yak1 /var/www/projects # ceph pg 1.49 query
{
    "state": "active+clean",
    "snap_trimq": "[]",
    "snap_trimq_len": 0,
    "epoch": 162,
    "up": [
        0,
        1
    ],
    "acting": [
        0,
        1
    ],
    "acting_recovery_backfill": [
        "0",
        "1"
    ],
    "info": {
        "pgid": "1.49",
        "last_update": "127'38077",
        "last_complete": "127'38077",
        "log_tail": "127'35000",
        "last_user_version": 38077,
        "last_backfill": "MAX",
        "last_backfill_bitwise": 0,
        "purged_snaps": [],
        "history": {
            "epoch_created": 10,
            "epoch_pool_created": 10,
            "last_epoch_started": 159,
            "last_interval_started": 158,
            "last_epoch_clean": 159,
            "last_interval_clean": 158,
            "last_epoch_split": 0,
            "last_epoch_marked_full": 0,
            "same_up_since": 158,
            "same_interval_since": 158,
            "same_primary_since": 135,
            "last_scrub": "127'36909",
            "last_scrub_stamp": "2019-02-20 15:02:45.204342",
            "last_deep_scrub": "127'36714",
            "last_deep_scrub_stamp": "2019-02-16 07:55:15.205861",
            "last_clean_scrub_stamp": "2019-02-20 15:02:45.204342"
        },
        "stats": {
            "version": "127'38077",
            "reported_seq": "58934",
            "reported_epoch": "162",
            "state": "active+clean",
            "last_fresh": "2019-02-20 19:56:56.740536",
            "last_change": "2019-02-20 19:52:27.063812",
            "last_active": "2019-02-20 19:56:56.740536",
            "last_peered": "2019-02-20 19:56:56.740536",
            "last_clean": "2019-02-20 19:56:56.740536",
            "last_became_active": "2019-02-20 19:52:27.062689",
            "last_became_peered": "2019-02-20 19:52:27.062689",
            "last_unstale": "2019-02-20 19:56:56.740536",
            "last_undegraded": "2019-02-20 19:56:56.740536",
            "last_fullsized": "2019-02-20 19:56:56.740536",
            "mapping_epoch": 158,
            "log_start": "127'35000",
            "ondisk_log_start": "127'35000",
            "created": 10,
            "last_epoch_clean": 159,
            "parent": "0.0",
            "parent_split_bits": 0,
            "last_scrub": "127'36909",
            "last_scrub_stamp": "2019-02-20 15:02:45.204342",
            "last_deep_scrub": "127'36714",
            "last_deep_scrub_stamp": "2019-02-16 07:55:15.205861",
            "last_clean_scrub_stamp": "2019-02-20 15:02:45.204342",
            "log_size": 3077,
            "ondisk_log_size": 3077,
            "stats_invalid": false,
            "dirty_stats_invalid": false,
            "omap_stats_invalid": false,
            "hitset_stats_invalid": false,
            "hitset_bytes_stats_invalid": false,
            "pin_stats_invalid": false,
            "manifest_stats_invalid": true,
            "snaptrimq_len": 0,
            "stat_sum": {
                "num_bytes": 478347970,
                "num_objects": 12052,
                "num_object_clones": 0,
                "num_object_copies": 24104,
                "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": 12052,
                "num_whiteouts": 0,
                "num_read": 20186,
                "num_read_kb": 1952018,
                "num_write": 38927,
                "num_write_kb": 484756,
                "num_scrub_errors": 0,
                "num_shallow_scrub_errors": 0,
                "num_deep_scrub_errors": 0,
                "num_objects_recovered": 6,
                "num_bytes_recovered": 4101,
                "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,
                "num_large_omap_objects": 0,
                "num_objects_manifest": 0
            },
            "up": [
                0,
                1
            ],
            "acting": [
                0,
                1
            ],
            "blocked_by": [],
            "up_primary": 0,
            "acting_primary": 0,
            "purged_snaps": []
        },
        "empty": 0,
        "dne": 0,
        "incomplete": 0,
        "last_epoch_started": 159,
        "hit_set_history": {
            "current_last_update": "0'0",
            "history": []
        }
    },
    "peer_info": [
        {
            "peer": "1",
            "pgid": "1.49",
            "last_update": "127'38077",
            "last_complete": "127'38077",
            "log_tail": "127'35000",
            "last_user_version": 38077,
            "last_backfill": "MAX",
            "last_backfill_bitwise": 0,
            "purged_snaps": [],
            "history": {
                "epoch_created": 10,
                "epoch_pool_created": 10,
                "last_epoch_started": 159,
                "last_interval_started": 158,
                "last_epoch_clean": 159,
                "last_interval_clean": 158,
                "last_epoch_split": 0,
                "last_epoch_marked_full": 0,
                "same_up_since": 158,
                "same_interval_since": 158,
                "same_primary_since": 135,
                "last_scrub": "127'36909",
                "last_scrub_stamp": "2019-02-20 15:02:45.204342",
                "last_deep_scrub": "127'36714",
                "last_deep_scrub_stamp": "2019-02-16 07:55:15.205861",
                "last_clean_scrub_stamp": "2019-02-20 15:02:45.204342"
            },
            "stats": {
                "version": "127'38077",
                "reported_seq": "58745",
                "reported_epoch": "134",
                "state": "active+undersized+degraded",
                "last_fresh": "2019-02-20 19:06:19.180016",
                "last_change": "2019-02-20 19:04:39.483332",
                "last_active": "2019-02-20 19:06:19.180016",
                "last_peered": "2019-02-20 19:06:19.180016",
                "last_clean": "2019-02-20 18:23:33.675145",
                "last_became_active": "2019-02-20 19:04:39.483332",
                "last_became_peered": "2019-02-20 19:04:39.483332",
                "last_unstale": "2019-02-20 19:06:19.180016",
                "last_undegraded": "2019-02-20 19:04:39.477829",
                "last_fullsized": "2019-02-20 19:04:39.477717",
                "mapping_epoch": 158,
                "log_start": "127'35000",
                "ondisk_log_start": "127'35000",
                "created": 10,
                "last_epoch_clean": 124,
                "parent": "0.0",
                "parent_split_bits": 0,
                "last_scrub": "127'36909",
                "last_scrub_stamp": "2019-02-20 15:02:45.204342",
                "last_deep_scrub": "127'36714",
                "last_deep_scrub_stamp": "2019-02-16 07:55:15.205861",
                "last_clean_scrub_stamp": "2019-02-20 15:02:45.204342",
                "log_size": 3077,
                "ondisk_log_size": 3077,
                "stats_invalid": false,
                "dirty_stats_invalid": false,
                "omap_stats_invalid": false,
                "hitset_stats_invalid": false,
                "hitset_bytes_stats_invalid": false,
                "pin_stats_invalid": false,
                "manifest_stats_invalid": true,
                "snaptrimq_len": 0,
                "stat_sum": {
                    "num_bytes": 478347970,
                    "num_objects": 12052,
                    "num_object_clones": 0,
                    "num_object_copies": 24104,
                    "num_objects_missing_on_primary": 0,
                    "num_objects_missing": 0,
                    "num_objects_degraded": 12052,
                    "num_objects_misplaced": 0,
                    "num_objects_unfound": 0,
                    "num_objects_dirty": 12052,
                    "num_whiteouts": 0,
                    "num_read": 20186,
                    "num_read_kb": 1952018,
                    "num_write": 38927,
                    "num_write_kb": 484756,
                    "num_scrub_errors": 0,
                    "num_shallow_scrub_errors": 0,
                    "num_deep_scrub_errors": 0,
                    "num_objects_recovered": 6,
                    "num_bytes_recovered": 4101,
                    "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,
                    "num_large_omap_objects": 0,
                    "num_objects_manifest": 0
                },
                "up": [
                    0,
                    1
                ],
                "acting": [
                    0,
                    1
                ],
                "blocked_by": [],
                "up_primary": 0,
                "acting_primary": 0,
                "purged_snaps": []
            },
            "empty": 0,
            "dne": 0,
            "incomplete": 0,
            "last_epoch_started": 159,
            "hit_set_history": {
                "current_last_update": "0'0",
                "history": []
            }
        }
    ],
    "recovery_state": [
        {
            "name": "Started/Primary/Active",
            "enter_time": "2019-02-20 19:52:27.027151",
            "might_have_unfound": [],
            "recovery_progress": {
                "backfill_targets": [],
                "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": "0",
                "scrubber.active": false,
                "scrubber.state": "INACTIVE",
                "scrubber.start": "MIN",
                "scrubber.end": "MIN",
                "scrubber.max_end": "MIN",
                "scrubber.subset_last_update": "0'0",
                "scrubber.deep": false,
                "scrubber.waiting_on_whom": []
            }
        },
        {
            "name": "Started",
            "enter_time": "2019-02-20 19:52:25.976144"
        }
    ],
    "agent_state": {}
}

I wonder what it all means and how to get out of this situation. The cluster seems to work normally. But it's quite disconcerting as you can probably imagine. Could it be a firewall issue? I'm not aware of any changes and I don't see any peering problems...

Thank you

Ranjan







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