Why is ceph osd tree reports that osd.4 is up when the server on which osd.4 is running is actually down ??
[root@osd01 ~]# ceph osd tree
ID CLASS WEIGHT TYPE NAME STATUS REWEIGHT PRI-AFF
-9 0 root ssds
-10 0 host osd01-ssd
-11 0 host osd02-ssd
-12 0 host osd04-ssd
-1 4.22031 root default
-3 1.67967 host osd01
0 hdd 0.55989 osd.0 down 0 1.00000
3 hdd 0.55989 osd.3 down 0 1.00000
6 hdd 0.55989 osd.6 up 1.00000 1.00000
-5 1.67967 host osd02
1 hdd 0.55989 osd.1 down 1.00000 1.00000
4 hdd 0.55989 osd.4 up 1.00000 1.00000
7 hdd 0.55989 osd.7 down 1.00000 1.00000
-7 0.86096 host osd04
2 hdd 0.28699 osd.2 down 0 1.00000
5 hdd 0.28699 osd.5 down 1.00000 1.00000
8 hdd 0.28699 osd.8 down 1.00000 1.00000
[root@osd01 ~]# ceph tell osd.4 bench
^CError EINTR: problem getting command descriptions from osd.4
[root@osd01 ~]# ceph osd df
ID CLASS WEIGHT REWEIGHT SIZE USE AVAIL %USE VAR PGS
0 hdd 0.55989 0 0 0 0 0 0 0
3 hdd 0.55989 0 0 0 0 0 0 0
6 hdd 0.55989 1.00000 573G 16474M 557G 2.81 0.84 0
1 hdd 0.55989 1.00000 573G 16516M 557G 2.81 0.84 0
4 hdd 0.55989 1.00000 573G 16465M 557G 2.80 0.84 0
7 hdd 0.55989 1.00000 573G 16473M 557G 2.81 0.84 0
2 hdd 0.28699 0 0 0 0 0 0 0
5 hdd 0.28699 1.00000 293G 16466M 277G 5.47 1.63 0
8 hdd 0.28699 1.00000 293G 16461M 277G 5.47 1.63 0
TOTAL 2881G 98857M 2784G 3.35
MIN/MAX VAR: 0.84/1.63 STDDEV: 1.30
[root@osd01 ~]# ceph osd df tree
ID CLASS WEIGHT REWEIGHT SIZE USE AVAIL %USE VAR PGS TYPE NAME
-9 0 - 0 0 0 0 0 - root ssds
-10 0 - 0 0 0 0 0 - host osd01-ssd
-11 0 - 0 0 0 0 0 - host osd02-ssd
-12 0 - 0 0 0 0 0 - host osd04-ssd
-1 4.22031 - 2881G 98857M 2784G 3.35 1.00 - root default
-3 1.67967 - 573G 16474M 557G 2.81 0.84 - host osd01
0 hdd 0.55989 0 0 0 0 0 0 0 osd.0
3 hdd 0.55989 0 0 0 0 0 0 0 osd.3
6 hdd 0.55989 1.00000 573G 16474M 557G 2.81 0.84 0 osd.6
-5 1.67967 - 1720G 49454M 1671G 2.81 0.84 - host osd02
1 hdd 0.55989 1.00000 573G 16516M 557G 2.81 0.84 0 osd.1
4 hdd 0.55989 1.00000 573G 16465M 557G 2.80 0.84 0 osd.4
7 hdd 0.55989 1.00000 573G 16473M 557G 2.81 0.84 0 osd.7
-7 0.86096 - 587G 32928M 555G 5.47 1.63 - host osd04
2 hdd 0.28699 0 0 0 0 0 0 0 osd.2
5 hdd 0.28699 1.00000 293G 16466M 277G 5.47 1.63 0 osd.5
8 hdd 0.28699 1.00000 293G 16461M 277G 5.47 1.63 0 osd.8
TOTAL 2881G 98857M 2784G 3.35
MIN/MAX VAR: 0.84/1.63 STDDEV: 1.30