On Fri, Jul 6, 2012 at 12:27 AM, <Eric_YH_Chen@xxxxxxxxxx> wrote:
> Hi all:
>
> Here is the original crushmap, I change the algorithm of host to "tree"
> and
> set back to ceph cluster. However, when I try to map one imge to
> rados block device (RBD), it would hang and no response until I press
> ctrl-c.
> ( rbd map xxxx => then hang)
>
> Is there any wrong in the crushmap? Thanks for help.
Hmm, your crush map looks okay to me.
What are the versions of everything (cluster, rbd tool, kernel),
what's the exact command you run, and does it output anything? Is
there any information in dmesg?
-Greg
> =============================================
> # devices
> device 0 osd.0
> device 1 osd.1
> device 2 osd.2
> device 3 osd.3
> device 4 osd.4
> device 5 osd.5
> device 6 osd.6
> device 7 osd.7
> device 8 osd.8
> device 9 osd.9
> device 10 osd.10
> device 11 osd.11
>
> # types
> type 0 osd
> type 1 host
> type 2 rack
> type 3 row
> type 4 room
> type 5 datacenter
> type 6 pool
>
> # buckets
> host store-001 {
> id -2 # do not change unnecessarily
> # weight 12.000
> alg straw
> hash 0 # rjenkins1
> item osd.0 weight 1.000
> item osd.1 weight 1.000
> item osd.10 weight 1.000
> item osd.11 weight 1.000
> item osd.2 weight 1.000
> item osd.3 weight 1.000
> item osd.4 weight 1.000
> item osd.5 weight 1.000
> item osd.6 weight 1.000
> item osd.7 weight 1.000
> item osd.8 weight 1.000
> item osd.9 weight 1.000
> }
> rack unknownrack {
> id -3 # do not change unnecessarily
> # weight 12.000
> alg straw
> hash 0 # rjenkins1
> item store-001 weight 12.000
> }
> pool default {
> id -1 # do not change unnecessarily
> # weight 12.000
> alg straw
> hash 0 # rjenkins1
> item unknownrack weight 12.000
> }
>
> # rules
> rule data {
> ruleset 0
> type replicated
> min_size 1
> max_size 10
> step take default
> step choose firstn 0 type osd
> step emit
> }
> rule metadata {
> ruleset 1
> type replicated
> min_size 1
> max_size 10
> step take default
> step choose firstn 0 type osd
> step emit
> }
> rule rbd {
> ruleset 2
> type replicated
> min_size 1
> max_size 10
> step take default
> step choose firstn 0 type osd
> step emit
> }
>
>
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