Hi all,
I have one questions about osd degraded.
My environment was set up with 3 mon, 2 mds and 25 osd, all daemon are
running on physical machines.
Ceph Version: 0.30
File system format: EXT4
Q1. When I'm testing osd stability, I kill an osd daemon (osd2) to
observe the behavior of data migration.
For all I know, I could see the pg degraded ratio down to zero,
and all pgs become active+clean.
but Ceph file system didn't migrate the data on the osd (which I
already killed its daemon) to other osds.
The degraded ratio still remain at 4.xxx%.
After then, I run "cosd -i 2 -c /etc/ceph/ceph.conf"and then run "ceph -w",
I saw all pgs suddenly become active+clean.
Could anyone tell me why Ceph didn't migrate data when I kill one osd daemon?
Thanks a lot~ ^__^
Best Regards,
Anny
[global]
pid file = /var/run/ceph/$name.pid
; debug ms =1
; enable secure authentication
; auth supported = cephx
[mon]
mon data = /mon/mon$id
debug mon = 0
[mon.a]
host = MON1
mon addr = 192.168.10.1:6789
[mon.b]
host = MON2
mon addr = 192.168.10.2:6789
[mon.c]
host = MON3
mon addr = 192.168.10.3:6789
[mds]
debug mds = 0
[mds.a]
host = MDS1
[mds.b]
host = MDS2
[osd]
osd data = /mnt/ext4/osd$id
osd journal = /data/osd$id/journal
osd journal size = 512 ; journal size, in megabytes
filestore btrfs snap = false
filestore fsync flushes journal data = true
debug osd = 0
[osd.0]
host = OSD1
[osd.1]
host = OSD2
[osd.2]
host = OSD3
[osd.3]
host = OSD4
[osd.4]
host = OSD5
[osd.5]
host = OSD6
[osd.6]
host = OSD7
[osd.7]
host = OSD8
[osd.8]
host = OSD9
[osd.9]
host = OSD10
[osd.10]
host = OSD11
[osd.11]
host = OSD12
[osd.12]
host = OSD13
[osd.13]
host = OSD14
[osd.14]
host = OSD15
[osd.15]
host = OSD16
[osd.16]
host = OSD17
[osd.17]
host = OSD18
[osd.18]
host = OSD19
[osd.19]
host = OSD20
[osd.20]
host = OSD21
[osd.21]
host = OSD22
[osd.22]
host = OSD23
[osd.23]
host = OSD24
[osd.24]
host = OSD25
