Ceph pg in inactive state

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Hi all,

I have a 3 node ceph cluster setup using juju charms. ceph health shows having inactive pgs.

---------------
# ceph status
  cluster:
    id:     0e36956e-ef64-11e9-b472-00163e6e01e8
    health: HEALTH_WARN
            Reduced data availability: 114 pgs inactive


  services:
    mon: 3 daemons, quorum juju-06c3e9-0-lxd-0,juju-06c3e9-2-lxd-0,juju-06c3e9-1-lxd-0
    mgr: juju-06c3e9-0-lxd-0(active), standbys: juju-06c3e9-1-lxd-0, juju-06c3e9-2-lxd-0
    osd: 3 osds: 3 up, 3 in

  data:
    pools:   18 pools, 114 pgs
    objects: 0  objects, 0 B
    usage:   3.0 GiB used, 34 TiB / 34 TiB avail
    pgs:     100.000% pgs unknown
             114 unknown

---------------

PG health as well shows the PGs are in inactive state

-------------------------------
# ceph health detail
HEALTH_WARN Reduced data availability: 114 pgs inactive
PG_AVAILABILITY Reduced data availability: 114 pgs inactive
    pg 1.0 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 1.1 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 1.2 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 1.3 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 1.4 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 1.5 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 1.6 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 1.7 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 1.8 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 1.9 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 1.a is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 2.0 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 2.1 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 3.0 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 3.1 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 4.0 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 4.1 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 5.0 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 5.1 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 6.0 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 6.1 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 7.0 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 7.1 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 8.0 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 8.1 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 9.0 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 9.1 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 10.1 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 11.0 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.10 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.11 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.12 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.13 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.14 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.15 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.16 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.17 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.18 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.19 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 17.1a is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.10 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.11 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.12 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.13 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.14 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.15 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.16 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.17 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.19 is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.1a is stuck inactive for 1454.593774, current state unknown, last acting []
    pg 18.1b is stuck inactive for 1454.593774, current state unknown, last acting []
--------------------------------

But the weird thing is when I query for individual pg, its unable to find it :(

--------------------------------
# ceph pg 1.1 query
Error ENOENT: i don't have pgid 1.1

# ceph pg 18.1a query
Error ENOENT: i don't have pgid 18.1a

# ceph pg 18.1b query
Error ENOENT: i don't have pgid 18.1b

--------------------------------

As per https://docs.ceph.com/docs/master/rados/operations/pg-states/

---------------------------------
unknown : The ceph-mgr hasn’t yet received any information about the PG’s state from an OSD since mgr started up.
---------------------------------

I confirmed that all ceph osds are up, and the ceph-mgr service is as well running. 

Is there anything else that I need to check to rectify the issue?


--
Regards,
Soumya

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