[Linux-cluster] Quorum device brain the cluster when master lose network

emmanuel segura emi2fast at gmail.com
Mon Jul 30 15:35:39 UTC 2012


can you send me the ouput from cman_tool status? when the cluster it's
running

2012/7/30 GouNiNi <gounini.geekarea at gmail.com>

>
>
> ----- Mail original -----
> > De: "Digimer" <lists at alteeve.ca>
> > À: "linux clustering" <linux-cluster at redhat.com>
> > Cc: "GouNiNi" <gounini.geekarea at gmail.com>
> > Envoyé: Lundi 30 Juillet 2012 17:10:10
> > Objet: Re: [Linux-cluster] Quorum device brain the cluster when master
> lose network
> >
> > On 07/30/2012 10:43 AM, GouNiNi wrote:
> > > Hello,
> > >
> > > I did some tests on 4 nodes cluster with quorum device and I find a
> > > bad situation with one test, so I need your knowledges to correct
> > > my configuration.
> > >
> > > Configuation:
> > > 4 nodes, all vote for 1
> > > quorum device vote for 1 (to hold services with minimum 2 nodes up)
> > > cman expected votes 5
> > >
> > > Situation:
> > > I shut down network on 2 nodes, one of them is master.
> > >
> > > Observation:
> > > Fencing of one node (the master)... Quorum device Offline, Quorum
> > > disolved ! Services stopped.
> > > Fenced node reboot, cluster is quorate, 2nd offline node is fenced.
> > > Services restart.
> > > 2nd node offline reboot.
> > >
> > > My cluster is not quorate for 8 min (very long hardware boot :-)
> > > and my services were offline.
> > >
> > > Do you know how to prevent this situation?
> > >
> > > Regards,
> >
> > Please tell us the name and version of the cluster software you are
> > using, Please also share your configuration file(s).
> >
> > --
> > Digimer
> > Papers and Projects: https://alteeve.com
> >
>
> Sorry, RHEL5.6 64bits
>
> # rpm -q cman rgmanager
> cman-2.0.115-68.el5
> rgmanager-2.0.52-9.el5
>
>
> <?xml version="1.0"?>
> <cluster alias="cluname" config_version="144" name="cluname">
>         <clusternodes>
>                 <clusternode name="node1" nodeid="1" votes="1">
>                         <fence>
>                                 <method name="single">
>                                         <device name="fenceIBM_307"
> port="12"/>
>                                 </method>
>                         </fence>
>                 </clusternode>
>                 <clusternode name="node2" nodeid="2" votes="1">
>                         <fence>
>                                 <method name="single">
>                                         <device name="fenceIBM_307"
> port="11"/>
>                                 </method>
>                         </fence>
>                 </clusternode>
>                 <clusternode name="node3" nodeid="3" votes="1">
>                         <fence>
>                                 <method name="single">
>                                         <device name="fenceIBM_308"
> port="6"/>
>                                 </method>
>                         </fence>
>                 </clusternode>
>                 <clusternode name="node4" nodeid="4" votes="1">
>                         <fence>
>                                 <method name="single">
>                                         <device name="fenceIBM_308"
> port="7"/>
>                                 </method>
>                         </fence>
>                 </clusternode>
>         </clusternodes>
>         <fencedevices>
>                 <fencedevice agent="fence_bladecenter"
> ipaddr="XX.XX.XX.XX" login="xxxx" name="fenceIBM_307" passwd="yyyy"/>
>                 <fencedevice agent="fence_bladecenter"
> ipaddr="YY.YY.YY.YY" login="xxxx" name="fenceIBM_308" passwd="yyyy"/>
>         </fencedevices>
>         <rm log_level="7">
>                 <failoverdomains/>
>                 <resources/>
>                 <service ...>
>                         <...>
>                 </service>
>         </rm>
>         <fence_daemon clean_start="0" post_fail_delay="15"
> post_join_delay="300"/>
>         <cman expected_votes="5">
>                 <multicast addr="ZZ.ZZ.ZZ.ZZ"/>
>         </cman>
>         <quorumd interval="7" label="quorum" tko="12" votes="1"/>
> </cluster>
>
> --
> Linux-cluster mailing list
> Linux-cluster at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-cluster




-- 
esta es mi vida e me la vivo hasta que dios quiera
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