andrew at beekhof
Oct 29, 2009, 6:07 AM
Post #2 of 2
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Re: multiple drbd resources with heartbeat 2.1.3
[In reply to]
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I think you want the 2.1.4 update from the Novell support channel.
That had some significant improvements for master/slave groups.
On Mon, Oct 12, 2009 at 9:09 PM, Stepan, Troy <troy.stepan [at] unisys> wrote:
> Hi,
>
> We are using heartbeat 2.1.3 from the SLES 10 SP2 x64 distribution and are trying to manage 2 drbd resource agents in a 2 node cluster. Drbd is version 8.3.2 and we are using the updated ocf resource script that is bundled with DRBD 8.3.2 which we renamed to drbd832.
>
> We configured the first drbd resource in the master_slave block and it gets promoted to master fine, yet whenever we add a second drbd resource to the same master_slave block neither resource sets a node as master. Both DRBD resources are in a group and the group resides within the master_slave section of the CIB. Both drbd resources start on both nodes, but neither node is promoted to master . We also noticed that master-slave meta attributes do not seem to apply to our group members. We had to add individual meta_attributes to each primitive.
>
> Using drbdadm on the command line, we are able to promote/demote either node to primary/secondary with no problems.
>
> We would like to know if configuring more than one master-slave resources works in 2.1.3 and how should this be configured. Do we need individual master-slave blocks in the CIB?
>
> Here is an excerpt from our CIB:
>
> <master_slave id="ms_drbd">
> <meta_attributes id="ms_drbd-ma">
> <attributes>
> <nvpair id="ma-ms-drbd0-1" name="clone_max" value="2" />
> <nvpair id="ma-ms-drbd0-2" name="clone_node_max" value="1" />
> <nvpair id="ma-ms-drbd0-3" name="master_max" value="1" />
> <nvpair id="ma-ms-drbd0-4" name="master_node_max" value="1" />
> <nvpair id="ma-ms-drbd0-5" name="notify_start_uname" value="qpr1" />
> <nvpair id="ma-ms-drbd0-6" name="notify" value="yes" />
> <nvpair id="ma-ms-drbd0-7" name="globally_unique" value="false" />
> <nvpair id="ma-ms-drbd0-8" name="target_role" value="#default" />
> </attributes>
> </meta_attributes>
> <group id="drbd-group">
> <primitive id="drbd-var-mqm" class="ocf" provider="heartbeat" type="drbd832">
> <meta_attributes id="ms_drbd1-ma">
> <attributes>
> <nvpair id="ma-ms-drbd1-1" name="clone_max" value="2" />
> <nvpair id="ma-ms-drbd1-2" name="clone_node_max" value="1" />
> <nvpair id="ma-ms-drbd1-3" name="master_max" value="1" />
> <nvpair id="ma-ms-drbd1-4" name="master_node_max" value="1" />
> </attributes>
> </meta_attributes>
> <instance_attributes id="ms_drbd-var-mqm-instance_attributes">
> <attributes>
> <nvpair id="drbd-b-1" name="drbd_resource" value="var-mqm" />
> <nvpair id="drbd-b-2" name="target_role" value="started" />
> <nvpair id="drbd-b-3" name="is_managed" value="true" />
> </attributes>
> </instance_attributes>
> </primitive>
> <primitive id="drbd-var-mqm-log" class="ocf" provider="heartbeat" type="drbd832">
> <meta_attributes id="ms_drbd2-ma">
> <attributes>
> <nvpair id="ma-ms-drbd2-1" name="clone_max" value="2" />
> <nvpair id="ma-ms-drbd2-2" name="clone_node_max" value="1" />
> <nvpair id="ma-ms-drbd2-3" name="master_max" value="1" />
> <nvpair id="ma-ms-drbd2-4" name="master_node_max" value="1" />
> </attributes>
> </meta_attributes>
> <instance_attributes id="ms_drbd-instance_attributes">
> <attributes>
> <nvpair id="drbd-a-1" name="drbd_resource" value="var-mqm-log" />
> <nvpair id="ms_drbd-target_role" name="target_role" value="started" />
> <nvpair id="ms_drbd-is_managed" name="is_managed" value="true" />
> </attributes>
> </instance_attributes>
> </primitive>
> </group>
> </master_slave>
>
> crm_mon output:
>
> ============
> Last updated: Mon Oct 12 11:25:27 2009
> Current DC: qpr2 (e74cb8c7-50a7-41d4-80af-abd4da061418)
> 2 Nodes configured.
> 2 Resources configured.
> ============
>
> Node: qpr2 (e74cb8c7-50a7-41d4-80af-abd4da061418): online
> Node: qpr1 (08ee8c47-dac6-4fa4-b157-0dcf4901d469): online
>
> Master/Slave Set: ms_drbd
> Resource Group: drbd-group:0
> drbd-var-mqm:0 (ocf::heartbeat:drbd832): Started qpr2
> drbd-var-mqm-log:0 (ocf::heartbeat:drbd832): Started qpr2
> Resource Group: drbd-group:1
> drbd-var-mqm:1 (ocf::heartbeat:drbd832): Started qpr1
> drbd-var-mqm-log:1 (ocf::heartbeat:drbd832): Started qpr1
> Resource Group: xpr-group
> app_addr (ocf::heartbeat:IPaddr2): Started qpr2
> public_addr (ocf::heartbeat:IPaddr2): Started qpr2
> default_route (ocf::heartbeat:Route): Started qpr2
>
>
> Thanks for taking a look. We've been spinning our wheels on this one.
>
>
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>
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