[Pacemaker] Periodically appear non-existent nodes

[ruslan usifov]

2012/4/18 Andreas Kurz <andreas at hastexo.com>

> On 04/17/2012 09:31 PM, ruslan usifov wrote:
> >
> >
> > 2012/4/17 Proskurin Kirill <k.proskurin at corp.mail.ru
> > <mailto:k.proskurin at corp.mail.ru>>
> >
> >     On 04/17/2012 03:46 PM, ruslan usifov wrote:
> >
> >         2012/4/17 Andreas Kurz <andreas at hastexo.com
> >         <mailto:andreas at hastexo.com> <mailto:andreas at hastexo.com
> >         <mailto:andreas at hastexo.com>>>
> >
> >
> >            On 04/14/2012 11:14 PM, ruslan usifov wrote:
> >             > Hello
> >             >
> >             > I remove 2 nodes from cluster, with follow sequence:
> >             >
> >             > crm_node --force -R <id of node1>
> >             > crm_node --force -R <id of node2>
> >             > cibadmin --delete --obj_type nodes --crm_xml '<node
> >         uname="node1"/>'
> >             > cibadmin --delete --obj_type status --crm_xml '<node_state
> >            uname="node1"/>'
> >             > cibadmin --delete --obj_type nodes --crm_xml '<node
> >         uname="node2"/>'
> >             > cibadmin --delete --obj_type status --crm_xml '<node_state
> >            uname="node2"/>'
> >             >
> >             >
> >             > Nodes after this deleted, but if for example i restart
> >         (reboot)
> >            one of
> >             > existent nodes in working cluster, this deleted nodes
> >         appear again in
> >             > OFFLINE state
> >
> >
> >     I have this problem some time ago.
> >     I "solved" it something like that:
> >
> >     crm node delete NODENAME
> >     crm_node --force --remove NODENAME
> >     cibadmin --delete --obj_type nodes --crm_xml '<node
> uname="NODENAME"/>'
> >     cibadmin --delete --obj_type status --crm_xml '<node_state
> >     uname="NODENAME"/>'
> >
> >     --
> >
> >
> > I do the same, but some times after cluster reconfiguration (node failed
> > due power supply failure) removed nodes appear again, and this happens
> > 3-4 times
>
> And the same behavior if you switch your cluster into maintenance-mode
> (to avoid service downtime) and stop/start pacemaker and corosync
> completely?
>
>
We will have maintenance window at this Friday (20.04.2012) so after that i
can report more info.

PS: I had similar situation on other cluster some times ago, and there i
fully restart cluster and problem reproduced. But after some time(about 1-2
week) not existent nodes have ceased to appear
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