[ClusterLabs] two node cluster not behaving right

[Jan Friesse]

user.clusterlabs.org at siimnet.dk napsal(a):
> Been new to pacemaker, I’m trying to create my first cluster of two nodes, but it seems to behave a little strange.
> Following this guide: http://clusterlabs.org/quickstart-redhat-6.html <http://clusterlabs.org/quickstart-redhat-6.html>
>
> but am unable to do f.ex.:
>
> [root at afnA ~]# pcs property set stonith-enabled=false
> Error: Unable to update cib
> Call cib_replace failed (-62): Timer expired
>
>
> only thing I find in logs are continued corosync events:
>
> Nov 06 01:30:54 corosync [TOTEM ] Retransmit List: 96 97
> Nov 06 01:30:56 corosync [TOTEM ] Retransmit List: 96 97
> Nov 06 01:30:57 corosync [TOTEM ] Retransmit List: 96 97
> Nov 06 01:30:59 corosync [TOTEM ] Retransmit List: 96 97
> Nov 06 01:31:01 corosync [TOTEM ] Retransmit List: 96 97

This means something is blocking successful delivery of packets. Make 
sure to:
- Properly configure firewall (for testing you can disable it completely)
- Make sure you have properly configured multicast. As alternative, you 
can try udpu. Udpu is usually better compatible with switches and for 
two node use case performance is same.

Regards,
   Honza

> ...
>
> Let me known if more info would help!
>
> TIA
>
> pcs cluster report: https://dl.dropboxusercontent.com/u/13225502/pacemaker.report.tar.bz2 <https://dl.dropboxusercontent.com/u/13225502/pacemaker.report.tar.bz2>
>
>
> CentOS 6.7 w/:
> pacemaker-1.1.12-8.el6.x86_64
> pcs-0.9.139-9.el6_7.1.x86_64
> ccs-0.16.2-81.el6.x86_64
> resource-agents-3.9.5-24.el6.x86_64
> cman-3.0.12.1-73.el6.1.x86_64
> corosync-1.4.7-2.el6.x86_64
>
> [root at afnB ~]# pacemakerd --features
> Pacemaker 1.1.11 (Build: 97629de)
>   Supporting v3.0.9:  generated-manpages agent-manpages ascii-docs ncurses libqb-logging libqb-ipc nagios  corosync-plugin cman acls
>
> [root at afnB ~]# corosync-quorumtool -l
> Nodeid     Name
>     1   afnA.mxi.tdcfoo
>     2   afnB.mxi.tdcfoo
> [root at afnB ~]# corosync-quorumtool -s
> Version:          1.4.7
> Nodes:            2
> Ring ID:          8
> Quorum type:      quorum_cman
> Quorate:          Yes
> [root at afnB ~]# pcs status
> Cluster name: afn-cluster
> WARNING: no stonith devices and stonith-enabled is not false
> Last updated: Fri Nov  6 01:35:30 2015
> Last change: Fri Nov  6 01:29:37 2015
> Stack: cman
> Current DC: afna - partition with quorum
> Version: 1.1.11-97629de
> 2 Nodes configured
> 0 Resources configured
>
>
> Online: [ afna afnb ]
>
>
> Full list of resources:
>
>
>
> [root at afnB ~]# cat /etc/cluster/cluster.conf
> <cluster config_version="1" name="afn-cluster">
>    <fence_daemon/>
>    <clusternodes>
>      <clusternode name="afna" nodeid="1">
>        <fence>
>          <method name="pcmk-redirect">
>            <device name="pcmk" port="afna"/>
>          </method>
>        </fence>
>      </clusternode>
>      <clusternode name="afnb" nodeid="2">
>        <fence>
>          <method name="pcmk-redirect">
>            <device name="pcmk" port="afnb"/>
>          </method>
>        </fence>
>      </clusternode>
>    </clusternodes>
>    <cman/>
>    <fencedevices>
>      <fencedevice agent="fence_pcmk" name="pcmk"/>
>    </fencedevices>
>    <rm>
>      <failoverdomains/>
>      <resources/>
>    </rm>
> </cluster>
>
>
> [root at afnB ~]# grep -v '#' /etc/corosync/corosync.conf
> compatibility: whitetank
>
> totem {
>          version: 2
>
>          secauth: off
>          threads: 0
>
>          window_size: 150
>
>          interface {
>                  ringnumber: 0
>                  bindnetaddr: 10.45.69.0
>                  mcastaddr: 239.255.15.1
>                  mcastport: 5405
>                  ttl: 1
>          }
> }
>
> logging {
>          fileline: off
>          to_stderr: no
>          to_logfile: yes
>          logfile: /var/log/cluster/corosync.log
>          to_syslog: yes
>          debug: off
>          timestamp: on
>          logger_subsys {
>                  subsys: AMF
>                  debug: off
>          }
> }
>
>
>
>
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