$ sudo ceph health detail
HEALTH_WARN Reduced data availability: 1 pg inactive, 1 pg stale; Degraded data redundancy: 1 pg undersized
PG_AVAILABILITY Reduced data availability: 1 pg inactive, 1 pg stale
    pg 1.2d is stuck stale for 158544.853823, current state stale+undersized+peered, last acting [11]
PG_DEGRADED Degraded data redundancy: 1 pg undersized
    pg 1.2d is stuck undersized for 158551.331873, current state stale+undersized+peered, last acting [11]

$ sudo ceph pg map 1.2d
osdmap e281 pg 1.2d (1.2d) -> up [10,2,9] acting [10,2,9]

$ sudo ceph pg 1.2d query
Error ENOENT: i don't have pgid 1.2d

$ sudo ceph pg repair 1.2d
instructing pg 1.2d on osd.10 to repair

$ sudo ceph pg dump_stuck stale
ok
PG_STAT STATE                   UP   UP_PRIMARY ACTING ACTING_PRIMARY
1.2d    stale+undersized+peered [11]         11   [11]             11