pg stays in unknown states for a long time

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I have 104 pg stays in unknown states for a long time
[root@node-1 /]# ceph -s
  cluster:
    id:     653c6c1a-607e-4a62-bb92-dfe2f0d7afb6
    health: HEALTH_ERR
            1 osds down
            Reduced data availability: 104 pgs inactive
            24 slow requests are blocked > 32 sec. Implicated osds 0,1,2,8,9,10
            14 stuck requests are blocked > 4096 sec. Implicated osds 5,6

  services:
    mon:        3 daemons, quorum node-1,node-2,node-3
    mgr:        node-1(active), standbys: node-2, node-3
    osd:        12 osds: 11 up, 12 in
                flags nodeep-scrub
    rbd-mirror: 1 daemon active

  data:
    pools:   7 pools, 360 pgs
    objects: 1.80k objects, 3.91GiB
    usage:   17.6GiB used, 7.96TiB / 7.98TiB avail
    pgs:     28.889% pgs unknown
             256 active+clean
             104 unknown

  io:
    client:   1.56MiB/s wr, 0op/s rd, 83op/s wr

[root@node-1 /]# ceph health detail
HEALTH_ERR Reduced data availability: 104 pgs inactive; 30 slow
requests are blocked > 32 sec. Implicated osds 0,1,2,4,8,9,10; 14
stuck requests are blocked > 4096 sec. Implicated osds 5,6
PG_AVAILABILITY Reduced data availability: 104 pgs inactive
    pg 1.0 is stuck inactive for 2857.069686, current state unknown,
last acting []
    pg 1.1 is stuck inactive for 2857.069686, current state unknown,
last acting []
    pg 1.2 is stuck inactive for 2857.069686, current state unknown,
last acting []
    pg 1.3 is stuck inactive for 2857.069686, current state unknown,
last acting []
    pg 1.4 is stuck inactive for 2857.069686, current state unknown,
last acting []
    pg 1.5 is stuck inactive for 2857.069686, current state unknown,
last acting []
    pg 1.6 is stuck inactive for 2857.069686, current state unknown,
last acting []
    pg 1.7 is stuck inactive for 2857.069686, current state unknown,
last acting []
    pg 2.0 is stuck inactive for 2857.069686, current state unknown,
last acting []
    ......

[root@node-1 /]# ceph pg dump_stuck inactive
ok
PG_STAT STATE   UP UP_PRIMARY ACTING ACTING_PRIMARY
3.1d    unknown       []         -1               []             -1
3.1c    unknown       []         -1               []             -1
3.1b    unknown       []         -1               []             -1
3.1a    unknown       []         -1               []             -1
3.19    unknown       []         -1               []             -1
......

my pool size = 3

[root@node-1 /]# ceph pg 3.1d query
Error ENOENT: i don't have pgid 3.1d
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