1 active+undersized+degraded+remapped+wait_backfill+backfill_toofull ???

[Vincent Godin <vince.mlist@xxxxxxxxx>]

Hi,

I'm facing this problem. The cluster is in Hammer 0.94.5

When i do a ceph health detail, i can see :

pg 8.c1 is stuck unclean for 21691.555742, current state active+undersized+degraded+remapped+wait_backfill+backfill_toofull, last acting [140]
pg 8.c1 is stuck undersized for 21327.027365, current state active+undersized+degraded+remapped+wait_backfill+backfill_toofull, last acting [140]
pg 8.c1 is stuck degraded for 21327.035186, current state active+undersized+degraded+remapped+wait_backfill+backfill_toofull, last acting [140]
pg 8.c1 is active+undersized+degraded+remapped+wait_backfill+backfill_toofull, acting [140]

If I query the pg 8.c1, the recovery section gives :

 "recovery_state": [
        {
            "name": "Started\/Primary\/Active",
            "enter_time": "2016-07-25 11:24:48.658971",
            "might_have_unfound": [],
            "recovery_progress": {
                "backfill_targets": [
                    "80",
                    "151"
                ],
                "waiting_on_backfill": [],
                "last_backfill_started": "0\/\/0\/\/-1",
                "backfill_info": {
                    "begin": "0\/\/0\/\/-1",
                    "end": "0\/\/0\/\/-1",
                    "objects": []
                },
                "peer_backfill_info": [],
                "backfills_in_flight": [],
                "recovering": [],
                "pg_backend": {
                    "pull_from_peer": [],
                    "pushing": []
                }
            },

The problem is when i do a "ceph osd df" on osd 80 or 151, i can see that osd 80 is used at 16.19% and osd 151 at 81.98% (osd80 to osd99 are recovering so that's why they are so empty)

If i look for the backfill_full_ration of these two osds, i found 0.85 for both of them

So why the pg is in backfill_toofull state ?

Thanks for your help

Vincent

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