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Re: [Linux-cluster] Freeze with cmirror and cLVM



Hi,

Here is my cluster.conf :

<cluster alias="dev_s2" config_version="3" name="dev_s2">
        <clusternodes>
                <clusternode name="xen0dev40" nodeid="1"
votes="1"></clusternode>
                <clusternode name="xen0dev41" nodeid="2"
votes="1"></clusternode>
                <clusternode name="xen0dev42" nodeid="3"
votes="1"></clusternode>
                <clusternode name="xen0dev43" nodeid="4"
votes="1"></clusternode>
                <clusternode name="xen0dev44" nodeid="5"
votes="1"></clusternode>
        </clusternodes>
</cluster>

Fencing has been disabled a boot time in /etc/sysconfig/cman :
 FENCE_JOIN="no"

Thanks,
Nicolas AGIUS


-----Message d'origine-----
De : linux-cluster-bounces redhat com
[mailto:linux-cluster-bounces redhat com] De la part de SATHYA - IT
Envoyé : mardi 20 décembre 2011 05:15
À : linux-cluster redhat com
Objet : Re: [Linux-cluster] Linux-cluster Digest, Vol 92, Issue 14

Hi Nicolos,

Can you post your cluster.conf file. Do you have the unfence option enabled
in your cluster configuration. At times, system hangs out without allowing
the access to files during this scenario.

Thanks

Sathya Narayanan V
Solution Architect	
M +91 9940680173 |T +91 44 42199500  | Service Desk +91 44 42199521
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-----Original Message-----
Date: Mon, 19 Dec 2011 17:06:13 +0100
From: nagius astek fr
To: linux-cluster redhat com
Subject: [Linux-cluster] Freeze with cmirror and cLVM
Message-ID: <20111219170613 6wazswzvu8sw4cwc webmail astek fr>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed";
	DelSp="Yes"

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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