Hello, First of all, thank you very much for your quickly reply.
Your advice has made me thinking about the energy problem and its relation with stonith. In my case, I use two machines with ILO-similar system (like HP servers) and two power supplies.
Really, it's a very strange event that the two power supplies will fail together. The another case would be the motherboard will get seriously damaged.
In any case, I understand I'll need a third element (independent of both machines) to ensure that stonith works fine. Maybe something like an UPS or an advanced power supply line.
I'll try to investigate about this a little more. Again, thank you a lot for your help.
Cheers, El 08/06/12 13:45, Florian Haas escribió:
On Fri, Jun 8, 2012 at 1:01 PM, Juan M. Sierra<jmsie...@cica.es> wrote:Problem with state: UNCLEAN (OFFLINE) Hello, I'm trying to get up a directord service with pacemaker. But, I found a problem with the unclean (offline) state. The initial state of my cluster was this: Online: [ node2 node1 ] node1-STONITH (stonith:external/ipmi): Started node2 node2-STONITH (stonith:external/ipmi): Started node1 Clone Set: Connected Started: [ node2 node1 ] Clone Set: ldirector-activo-activo Started: [ node2 node1 ] ftp-vip (ocf::heartbeat:IPaddr): Started node1 web-vip (ocf::heartbeat:IPaddr): Started node2 Migration summary: * Node node1: pingd=2000 * Node node2: pingd=2000 node2-STONITH: migration-threshold=1000000 fail-count=1000000 and then, I removed the electric connection of node1, the state was the next: Node node1 (8b2aede9-61bb-4a5a-aef6-25fbdefdddfd): UNCLEAN (offline) Online: [ node2 ] node1-STONITH (stonith:external/ipmi): Started node2 FAILED Clone Set: Connected Started: [ node2 ] Stopped: [ ping:1 ] Clone Set: ldirector-activo-activo Started: [ node2 ] Stopped: [ ldirectord:1 ] web-vip (ocf::heartbeat:IPaddr): Started node2 Migration summary: * Node node2: pingd=2000 node2-STONITH: migration-threshold=1000000 fail-count=1000000 node1-STONITH: migration-threshold=1000000 fail-count=1000000 Failed actions: node2-STONITH_start_0 (node=node2, call=22, rc=2, status=complete): invalid parameter node1-STONITH_monitor_60000 (node=node2, call=11, rc=14, status=complete): status: unknown node1-STONITH_start_0 (node=node2, call=34, rc=1, status=complete): unknown error I was hoping that node2 take the management of ftp-vip resource, but it wasn't in that way. node1 kept in a unclean state and node2 didn't take the management of its resources. When I put back the electric connection of node1 and it was recovered then, node2 took the management of ftp-vip resource. I've seen some similar conversations here. Please, could you show me some idea about this subject or some thread where this is discussed?Well your healthy node failed to fence your offending node. So fix your STONITH device configuration and as soon as that is able to fence, your failover should work fine. Of course, if your IPMI BMC fails immediately after you remove power from the machine (i.e. it has no backup battery so it can at least report the power status), then you might have to fix your issue by switching to a different STONITH device altogether. Cheers, Florian
-- Juan Manuel Sierra Prieto Administración de Sistemas Centro Informatico Cientifico de Andalucia (CICA) Avda. Reina Mercedes s/n - 41012 - Sevilla (Spain) Tfno.: +34 955 056 600 / FAX: +34 955 056 650 Consejería de Economía, Innovación y Ciencia Junta de Andalucía _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
