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

Tue Aug 7 11:14:02 UTC 2012

Yes I do ;)

-- 
  .`'`.   GouNiNi
 :  ': :  
 `. ` .`  GNU/Linux
   `'`    http://www.geekarea.fr


----- Mail original -----
> De: "emmanuel segura" <emi2fast at gmail.com>
> À: "linux clustering" <linux-cluster at redhat.com>
> Envoyé: Mardi 7 Août 2012 11:29:59
> Objet: Re: [Linux-cluster] Quorum device brain the cluster when master	lose network
> 
> 
> do you reboot all nodes in your cluster after removed the
> expected_votes?
> 
> 
> 2012/8/7 GouNiNi < gounini.geekarea at gmail.com >
> 
> 
> Hello,
> 
> My problem is still here.
> I made a try without expected_votes="5" but nothing change on my test
> loosing network on two nodes.
> 
> Any other idea?
> 
> Regards,
> 
> 
> --
> .`'`. GouNiNi
> : ': :
> `. ` .` GNU/Linux
> `'` http://www.geekarea.fr
> 
> 
> ----- Mail original -----
> > De: "emmanuel segura" < emi2fast at gmail.com >
> > À: "linux clustering" < linux-cluster at redhat.com >
> > Envoyé: Mercredi 1 Août 2012 10:58:59
> 
> 
> > Objet: Re: [Linux-cluster] Quorum device brain the cluster when
> > master lose network
> > 
> > 
> > Hello Gounini
> > 
> > Sorry but it told you, remove <cman expected_votes="5"> and reboot
> > the cluster
> > 
> > Let the cluster calculate the expected votes
> > 
> > 
> > 2012/8/1 GouNiNi < gounini.geekarea at gmail.com >
> > 
> > 
> > I do this test one more time and I got same result with more
> > precisions:
> > 
> > When I shutdown network on 2 nodes including the master, master
> > stay
> > alive while the 2 online nodes are fencing the offline non-master
> > node. The cluster goes Inquorate after.
> > When fenced node came back, he joins cluster and cluster becomes
> > quorate. New master is chose and the old master is fenced.
> > 
> > # cman_tool status
> > Version: 6.2.0
> > Config Version: 144
> > Cluster Name: cluname
> > Cluster Id: 57462
> > Cluster Member: Yes
> > Cluster Generation: 488
> > Membership state: Cluster-Member
> > Nodes: 4
> > Expected votes: 5
> > Quorum device votes: 1
> > Total votes: 5
> > Quorum: 3
> > Active subsystems: 9
> > Flags: Dirty
> > Ports Bound: 0 177
> > Node name: nodename
> > Node ID: 2
> > Multicast addresses: ZZ.ZZ.ZZ.ZZ
> > Node addresses: YY.YY.YY.YY
> > 
> > --
> > .`'`. GouNiNi
> > : ': :
> > `. ` .` GNU/Linux
> > `'` http://www.geekarea.fr
> > 
> > 
> > ----- Mail original -----
> > > De: "emmanuel segura" < emi2fast at gmail.com >
> > > À: "linux clustering" < linux-cluster at redhat.com >
> > > Envoyé: Lundi 30 Juillet 2012 17:35:39
> > > Objet: Re: [Linux-cluster] Quorum device brain the cluster when
> > > master lose network
> > > 
> > > 
> > > 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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> > 
> > --
> > 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
> > 
> > --
> > Linux-cluster mailing list
> > Linux-cluster at redhat.com
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> 
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> 
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