[Pacemaker] [PATCH] crm shell (configure node) for Heartbeat stack

Kazunori INOUE inouekazu at intellilink.co.jp
Mon Jun 6 05:17:31 EDT 2011


Hi,

(2011/05/27 19:32), Lars Ellenberg wrote:
>
> Oh no.
> Now you have duplicated all nodes, and will always get "unclean" nodes.
>
> Is this some variant of:
> http://www.clusterlabs.org/wiki/Initial_Configuration#A_Special_Note_for_People_Switching_Cluster_Stacks
>
> Could that be the root cause of your duplicate node instances with
> different ids?
>
Yes.
Corosync uses uname (output of 'uname -n') as ID of the node, and
Heartbeat uses UUID as ID of the node. Therefore, on Heartbeat stack,
unclean node is added when I loaded the following CLI.
# cat test1.cli
node srv-a1 utilization capacity="1"
#

Attached "crm_configure_node_for_hb.patch" replaces ID of node (uname)
with UUID, after parsing the node ('node srv-a1 utilization capacity="1"')
command.
# crm -d configure load update test1.cli
(snip)
DEBUG: 1: cli_list: [['node', [['uname', 'srv-a1'], ['id', 'srv-a1']]], ['utilization', [['capacity', '1']]]]
DEBUG: 1: id_replace: <srv-a1> to <0cd9d2df-13fa-4b11-93d3-27a57192caeb>
DEBUG: 1: cli_list: [['node', [['uname', 'srv-a1'], ['id', '0cd9d2df-13fa-4b11-93d3-27a57192caeb']]], ['utilization', [['capacity', '1']]]]
(snip)

In other words attached patch will get the same result as loading
following cli.
# cat test2.cli
node $id="0cd9d2df-13fa-4b11-93d3-27a57192caeb" utilization capacity="1"
#
Is not this patch effective?

Best Regards,
Kazunori INOUE

> Or is only the crm shell getting it wrong when updating node attributes?
>
> --
> : Lars Ellenberg
> : LINBIT | Your Way to High Availability
> : DRBD/HA support and consulting http://www.linbit.com
>
> DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
>
> _______________________________________________
> 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




More information about the Pacemaker mailing list