[Linux-cluster] Freeze with cmirror and cLVM

[nagius at astek.fr]

Hello all,

We've got a problem using a mirrored and clustered LV within a 5 nodes  
cluster.

Everything is fine, except when a node leave the cluster, with  
cman_tool leave, /etc/init/d/cman stop, electric poweroff or whatever.
In this case the storage just freeze on the others nodes, during 20  
seconds, until openais take into account the configuration change.

We can see this during the freeze in /var/log/messages :

 openais[3136]: [TOTEM] The token was lost in the OPERATIONAL state.
 [...]
 kernel: device-mapper: dm-log-clustered: [1lXq0Alc] Request timed  
out: [DM_CLOG_MARK_REGION/405288] - retrying
 [...]
 openais[3136]: [TOTEM] entering OPERATIONAL state.

I'm running lastest 5.7, with :
 - kernel-xen-2.6.18-274.12.1,
 - cman-2.0.115-85,
 - lvm2-cluster-2.02.84-6
 - cmirror-1.1.39-10
 - kmod-cmirror-xen-0.1.22-3

Is this a normal behavior ?

Thanks for help
Nicolas AGIUS
 

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