hi,all in order to test ceph stability. i try to kill osds. in this case ,i kill 3 osds(osd3,2,0) that store the same pg 2.30. ---crush--- osdmap e1342 pool 'rbd' (2) object 'rbd_data.19d92ae8944a.0000000000000000' -> pg 2.c59a45b0 (2.30) -> up ([3,2,0], p3) acting ([3,2,0], p3) [root@cephosd5-gw current]# ceph osd tree # id weight type name up/down reweight -1 0.09995 root default -2 0.01999 host cephosd1-mona 0 0.01999 osd.0 down 0 -3 0.01999 host cephosd2-monb 1 0.01999 osd.1 up 1 -4 0.01999 host cephosd3-monc 2 0.01999 osd.2 down 0 -5 0.01999 host cephosd4-mdsa 3 0.01999 osd.3 down 0 -6 0.01999 host cephosd5-gw 4 0.01999 osd.4 up 1 ----- according to the test result, i have some confusion. 1. [root@cephosd5-gw current]# ceph pg 2.30 query Error ENOENT: i don't have pgid 2.30 why i can not query infomations of this pg? how to dump this pg? 2. #ceph osd map rbd rbd_data.19d92ae8944a.0000000000000000 osdmap e1451 pool 'rbd' (2) object 'rbd_data.19d92ae8944a.0000000000000000' -> pg 2.c59a45b0 (2.30) -> up ([4,1], p4) acting ([4,1], p4) does 'ceph osd map' command just calculate map , but does not check real pg stat? i do not find 2.30 on osd1 and osd.4. new that client will get the new map, why client hang ? thanks very much
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