[Linux-cluster] 2 node cluster questions

[emmanuel segura]

https://access.redhat.com/site/documentation/it-IT/Red_Hat_Enterprise_Linux/6/html/Logical_Volume_Manager_Administration/LVM_Cluster_Overview.html


2014/1/17 Benjamin Budts <ben at zentrix.be>

>
>
> Found my problem
>
>
>
> When running cman_tool status I saw that each node  only saw 1 node.
>
> I have 2 pairs of network on each machine (heartbeat network 1gbit
> multicast enabled/application network 10Gbit) with their own host mapping
> in /etc/hosts
>
>
>
> I used the the non-heartbeat hostname to add nodes into cluster via luci
> which caused issues.
>
>
>
> Removed luci & /var/lib/luci on nodes, as well as cat /dev/null
> /etc/cluster/cluster.conf
>
> Reinstalled luci, created cluster, added 2 nodes with correct hostnames,
> problem solved.
>
>
>
> Could anyone point me to a good guide for using cluster lvm ?
>
>
>
> Thx
>
>
>
>
>
>
>
> *From:* Elvir Kuric [mailto:ekuric at redhat.com]
> *Sent:* vrijdag 17 januari 2014 10:42
> *To:* ben at zentrix.be
> *Subject:* Re: [Linux-cluster] 2 node cluster questions
>
>
>
> On 01/16/2014 06:04 PM, Benjamin Budts wrote:
>
>
>
> Hey All,
>
>
>
>
>
> About my setup :
>
>
>
> I created a cluster in luci with shared storage, added 2 nodes
> (reachable), added 2 fence devices (idrac).
>
>
>
> Now, I can’t seem to add my fence devices to my nodes. If I click on a
> node it times out in the gui.
>
>
>
> So I checked my node logs and found in /var/log/messages ricci hangs on
> /etc/init.d/clvmd status
>
>
>
> When I run the command manually I get the PID and it hangs…
>
>
>
>
>
> I also seem to have a split brain config :
>
>
>
> # clustat on node 1 shows : node 1 Online,Local
>
>                                                     Node 2 Offline
>
>
>
> # clustat on node 2 shows : node 1 offline
>
>                                                     Node 2 online, Local
>
>
>
>
>
> My next step was testing if my multicast was working correctly (I suspect
> it isn’t). Would you guys have any recommendations besides the following
> redhat multicast test link ? :
>
>
>
> *Https://access.redhat.com/site/articles/22304
> <Https://access.redhat.com/site/articles/22304>*
>
>
>
>
>
>
>
> Some info about my systems  :
>
> ----------------------------------
>
>
>
> ·         Redhat 6.5 on 2 nodes with resilient storage & HA addon licenses
>
> ·         Mgmt. station redhat 6.5 with Luci
>
>
>
>
>
>
>
> Thx a lot
>
>
>
> Hard to say what issue is based on this without checking fully logs, can
> you please open case via Red Hat customer portal https://access.redhat.com( I assume you have valid subscription ) so we can take deeper look into
> this problem.
>
> Thank you in advance,
>
> Kind regards,
>
>
>
> --
>
> Elvir Kuric,Sr. TSE / Red Hat / GSS EMEA /
>
>
> --
> 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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