[Pacemaker] Best way to find master node

[Bob Schatz]

Yes it does.

Here is output from a different cluster which is at the same 1.0.9.1 Pacemaker 
version.

# crm_mon -n -1
============
Last updated: Wed Aug 25 09:35:51 2010
Stack: Heartbeat
Current DC: mg-wd-wcaw30021216-0 (f4e5e15c-d06b-4e37-89b9-4621af05128f) - 
partition with quorum
Version: 1.0.9-89bd754939df5150de7cd76835f98fe90851b677
2 Nodes configured, unknown expected votes
2 Resources configured.
============

Node mg-wd-wcaw30021216-0 (f4e5e15c-d06b-4e37-89b9-4621af05128f): online
        SSWD-WCAW30021216:0     (ocf::omneon:ss) Master
        SSWD-WCAW30021767:0     (ocf::omneon:ss) Slave
Node mg-wd-wcaw30021216-1 (856c1f72-7cd1-4906-8183-8be87eef96f2): online
        SSWD-WCAW30021767:1     (ocf::omneon:ss) Master
        SSWD-WCAW30021216:1     (ocf::omneon:ss) Slave
[root at mg-WD-WCAW30021216-0 ~]# crm resource show
INFO: building help index
 Master/Slave Set: ms-SSWD-WCAW30021216
     Masters: [ mg-wd-wcaw30021216-0 ]
     Slaves: [ mg-wd-wcaw30021216-1 ]
 Master/Slave Set: ms-SSWD-WCAW30021767
     Masters: [ mg-wd-wcaw30021216-1 ]
     Slaves: [ mg-wd-wcaw30021216-0 ]
[root at mg-WD-WCAW30021216-0 ~]# crm resource status ms-SSWD-WCAW30021216
resource ms-SSWD-WCAW30021216 is running on: mg-wd-wcaw30021216-0
resource ms-SSWD-WCAW30021216 is running on: mg-wd-wcaw30021216-1
[root at mg-WD-WCAW30021216-0 ~]# crm resource status ms-SSWD-WCAW30021767
resource ms-SSWD-WCAW30021767 is running on: mg-wd-wcaw30021216-0
resource ms-SSWD-WCAW30021767 is running on: mg-wd-wcaw30021216-1
[root at mg-WD-WCAW30021216-0 ~]#


Thanks,

Bob



----- Original Message ----
From: Andrew Beekhof <andrew at beekhof.net>
To: The Pacemaker cluster resource manager <pacemaker at oss.clusterlabs.org>
Sent: Tue, August 24, 2010 11:38:25 PM
Subject: Re: [Pacemaker] Best way to find master node

On Tue, Aug 24, 2010 at 12:37 AM, Bob Schatz <bschatz at yahoo.com> wrote:
> I would like to find the master node for a resource.
>
> On 1.0.9.1, when I do:
>
>    # crm resource status ms-SSWD-WCAW30019072
>    resource ms-SSWD-WCAW30019072 is  running on: box-0
>    resource ms-SSWD-WCAW30019072 is  running on: box-1
>
> This does not tell me if it is master or slave.

Does crm_mon indicate that either have been promoted to master?

>
> I found this thread:
>
>http://www.gossamer-threads.com/lists/linuxha/pacemaker/60434?search_string=crm_resource%20master%20;#60434
>4
>
>
> but I could not find a bug filed.
>
> Can I file a bug for this?  Would it be on crm_resource?
>
> Is there any workaround for this?
>
>
> Thanks,
>
> Bob
>
>
>
>
> _______________________________________________
> Pacemaker mailing list: Pacemaker at 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://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
>

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