[Linux-cluster] Question about cluster behavior
Digimer
lists at alteeve.ca
Fri Feb 14 17:34:20 UTC 2014
Replies in-line:
On 14/02/14 12:07 PM, FABIO FERRARI wrote:
> So it's not a normal behavior, I guess.
>
> Here is my cluster.conf:
>
> <?xml version="1.0"?>
> <cluster config_version="59" name="mail">
> <clusternodes>
> <clusternode name="eta.mngt.unimo.it" nodeid="1">
> <fence>
> <method name="fence-eta">
> <device name="fence-eta"/>
> </method>
> </fence>
> </clusternode>
> <clusternode name="beta.mngt.unimo.it" nodeid="2">
> <fence>
> <method name="fence-beta">
> <device name="fence-beta"/>
> </method>
> </fence>
> </clusternode>
> <clusternode name="guerro.mngt.unimo.it" nodeid="3">
> <fence>
> <method name="fence-guerro">
> <device name="fence-guerro"
> port="Guerro
> " ssl="on" uuid="4213f370-9572-63c7-26e4-22f0f43843aa"/>
> </method>
> </fence>
> </clusternode>
> </clusternodes>
> <cman expected_votes="5"/>
You generally don't need to set this, the cluster can calculate it.
> <quorumd label="mail-qdisk"/>
You don't set any votes, so the default is "1". So with expected votes
being 5, that means all three nodes have to be up or two nodes and qdisk.
> <rm>
> <resources>
> <ip address="155.185.44.61/24" sleeptime="10"/>
> <mysql config_file="/etc/my.cnf"
> listen_address="155.185.44.61" name="mysql"
> shutdown_wait="10" startup_wait="10"/>
> <script file="/etc/init.d/httpd" name="httpd"/>
> <script file="/etc/init.d/postfix" name="postfix"/>
> <script file="/etc/init.d/dovecot" name="dovecot"/>
> <fs device="/dev/mapper/mailvg-maillv"
> force_fsck="1" force_unmount="1" fsid="58161"
> fstype="xfs" mountpoint="/cl" name="mailvg-maill
> v" options="defaults,noauto" self_fence="1"/>
> <lvm lv_name="maillv" name="lvm-mailvg-maillv"
> self_fence="1" vg_name="mailvg"/>
> </resources>
> <failoverdomains>
> <failoverdomain name="mailfailoverdomain"
> nofailback="1" ordered="1" restricted="1">
> <failoverdomainnode
> name="eta.mngt.unimo.it" priority="1"/>
> <failoverdomainnode
> name="beta.mngt.unimo.it" priority="2"/>
> <failoverdomainnode
> name="guerro.mngt.unimo.it" priority="3"/>
> </failoverdomain>
> </failoverdomains>
> <service domain="mailfailoverdomain" max_restarts="3"
> name="mailservices" recovery="restart"
> restart_expire_time="600">
> <fs ref="mailvg-maillv">
> <ip ref="155.185.44.61/24">
> <mysql ref="mysql">
> <script ref="httpd"/>
> <script ref="postfix"/>
> <script ref="dovecot"/>
> </mysql>
> </ip>
> </fs>
> </service>
> </rm>
> <fencedevices>
> <fencedevice agent="fence_ipmilan" auth="password"
> ipaddr="155.185.135.105" lanplus="on" login="root"
> name="fence-eta" passwd="******" pr
> ivlvl="ADMINISTRATOR"/>
> <fencedevice agent="fence_ipmilan" auth="password"
> ipaddr="155.185.135.106" lanplus="on" login="root"
> name="fence-beta" passwd="******" p
> rivlvl="ADMINISTRATOR"/>
> <fencedevice agent="fence_vmware_soap"
> ipaddr="155.185.0.10" login="etabetaguerro"
> name="fence-guerro" passwd="******"/>
> </fencedevices>
> </cluster>
>
> What log file do you need? There are many in /var/log/cluster..
By default, /var/log/messages is the most useful. Checking 'cman_tool
status' and 'clustat' are also good.
--
Digimer
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