2012/11/17 Sage Weil <sage@xxxxxxxxxxx>:
> On Sat, 17 Nov 2012, Drunkard Zhang wrote:
>> 2012/11/17 Sage Weil <sage@xxxxxxxxxxx>:
>> > Hi,
>> >
>> > Okay, it looks something in the past added the host entry but for some
>> > reason didn't give it a parent. Did you previously modify the crush map
>> > by hand, or did you only manipulate it via the 'ceph osd crush ...'
>> > commands?
>> >
>> > Unfortuantely the fix is manually edit it.
>> >
>> > ceph osd getcrushmap -o /tmp/foo
>> > crushtool -d /tmp/foo -o /tmp/foo.txt
>> > edit foo.txt. remove the host bucket (squid87-log13) and all of it's
>> > children.
>> > crushtool -c /tmp/foo.txt -o /tmp/foo.new
>> > cpeh osd setcrushmap -i /tmp/foo.new
>> >
>> > and then you can re-run those 'ceph osd crush set ...' commands and you'll
>> > be back in business.
>> >
>> Great, it works. now I remember I was trying to add host by hand while
>> 'ceph osd crush set ...' failed (maybe command is wrong).
>>
>> Another problem: is there any chance to change 'rack'? Or how to
>> create a new rack? If I have to create a new rack first, I made
>> mistake, or maybe buggy again.
>>
>> Before change rack:
>> log3 ~ # ceph osd tree
>> dumped osdmap tree epoch 611
>> # id weight type name up/down reweight
>> -1 45 pool default
>> -3 45 rack rack0205
>> -2 33 host log3
>> 0 3 osd.0 up 3
>> 1 3 osd.1 up 3
>> 2 3 osd.2 up 3
>> 3 3 osd.3 up 3
>> 4 3 osd.4 up 3
>> 5 3 osd.5 up 3
>> 6 3 osd.6 up 3
>> 7 3 osd.7 up 3
>> 8 3 osd.8 up 3
>> 9 3 osd.9 up 3
>> 10 3 osd.10 up 3
>> -4 12 host squid87-log13
>> 11 3 osd.11 up 3
>> 12 3 osd.12 up 3
>> 13 3 osd.13 up 3
>> 14 3 osd.14 up 3
>>
>> Looks reasonable, but log3 miss set rack, I wanna change rack=rack0205
>> to rack=rack0206), reset use this command, but not works:
>> for i in {0..10}; do ceph osd crush set $i osd.$i 3 pool=data
>> datacenter=dh-1L room=room1 row=02 rack=rack0206 host=log3; done
>
> 'ceph osd crush set ...' will only move the device itself; it won't move
> any of its parents. If you want to move a non-leaf item in the tree, use
> 'ceph osd crush move <name> <location ...>'. Something like
>
> ceph osd crush move squid87-log13 rack=0206 pool=default
> ceph osd crush move log3 rack=0206 pool=default
>
> sage
Thank you a lot. I'll keep digging :-)
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