Re: Working of a two-node cluster

[Jatin Davey <jashokda@xxxxxxxxx>]

Ok , i tried with delay but it has not helped. I guess i have to try using quorum disk now.

Thanks
Jatin

On 4/24/2015 7:06 PM, Vijay Kakkar wrote:

You may need to delay the fencing ( delay=seconds ) or use quorum disk if delaying the fencing doesn't help.

On Fri, Apr 24, 2015 at 6:23 PM, Jatin Davey <jashokda@xxxxxxxxx> wrote:

Here is my cluster.conf file

************************
<?xml version="1.0"?>
<cluster config_version="4" name="****">
        <clusternodes>
                <clusternode name="node-103" nodeid="1">
                        <fence>
                                <method name="Method01">
                                        <device name="node-103"/>
                                </method>
                        </fence>
                </clusternode>
                <clusternode name="node-105" nodeid="2">
                        <fence>
                                <method name="Method02">
                                        <device name="node-105"/>
                                </method>
                        </fence>
                </clusternode>
        </clusternodes>
        <cman expected_votes="1" two_node="1"/>
        <fencedevices>
                <fencedevice agent="fence_ipmilan" auth="password" ipaddr="x.x.x.x" lanplus="on" login="admin" name="node-103" passwd="*****" privlvl="ADMINISTRATOR"/>
                <fencedevice agent="fence_ipmilan" auth="password" ipaddr="x.x.x.x" lanplus="on" login="admin" name="node-105" passwd="******" privlvl="ADMINISTRATOR"/>
        </fencedevices>
        <fence_daemon post_join_delay="120"/>
        <rm>
                <resources>
                        <netfs export="/test" force_unmount="1" fstype="nfs" host="x.x.x.x" mountpoint="/test/test/test" name="test123"/>
                        <ip address="x.x.x.x" sleeptime="5"/>
                        <script file="/xxx/xxx/xxx/xxx/xx.sh" name="xxxx"/>
                </resources>
                <failoverdomains>
                        <failoverdomain name="Failover01" nofailback="1" ordered="1">
                                <failoverdomainnode name="node-103" priority="1"/>
                                <failoverdomainnode name="node-105" priority="2"/>
                        </failoverdomain>
                </failoverdomains>
                <service domain="Failover01" name="Service01" recovery="relocate">
                        <ip ref="x.x.x.x"/>
                        <netfs ref="test123"/>
                        <script ref="xxxx"/>
                </service>
        </rm>
</cluster>

On 4/24/2015 6:01 PM, emmanuel segura wrote:

please share your cluster config, maybe in this way someone can help you.

2015-04-24 14:12 GMT+02:00 Jatin Davey <jashokda@xxxxxxxxx>:

Hi

I am using a two node cluster using RHEL 6.5. I have a very fundamental
question.

For the two node cluster to work , Is it mandatory that both the nodes are
"online" and communicating with each other ?

What i can see is that if there is communication failure between them then
either both the nodes are fenced or the cluster gets into a "stopped" state
(Seen from output of clustat command).

Apologies if my questions are naive. I am just starting to work with RHEL
cluster add-on.

Thanks
Jatin

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Cheers

Vijay Kakkar - RHC{E,SS,VA,DS,A,I,X}

Techgrills Systems Pvt. Ltd.
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