[Pacemaker] [Question]About "sequential" designation of resource_set.

[Andrew Beekhof]

On Thursday, March 7, 2013, wrote:

> Hi Andrew,
>
> > > You use the resource sets _instead_ of a group.
> > > If you want group.ordered=false, then use a colocation set (with
> > > sequential=true).
>
> In "colocation", I used "resource_set".
> However, a result did not include the change.


> Will this result be a mistake of my setting?
>
> Case 1) sequential=false
> (snip)
>     <constraints>
>       <rsc_colocation id="test-colocation" score="INFINITY">
>         <resource_set sequential="false" id="test-colocation-resource_set">
>           <resource_ref id="vip-master"/>
>           <resource_ref id="vip-rep"/>
>         </resource_set>
>       </rsc_colocation>
>     </constraints>


What are trying to achieve with this?  It doesn't do anything because there
is nothing to collocate master or rep with.
The only value here is to show that rep would not be stopped when master
is.


> (sip)
> [root at rh63-heartbeat2 ~]# grep "Initiating action" /var/log/ha-log
> Mar  8 00:20:52 rh63-heartbeat2 crmd: [22372]: info: te_rsc_command:
> Initiating action 2: probe_complete probe_complete on rh63-heartbeat1 - no
> waiting
> Mar  8 00:20:52 rh63-heartbeat2 crmd: [22372]: info: te_rsc_command:
> Initiating action 3: probe_complete probe_complete on rh63-heartbeat2
> (local) - no waiting
> Mar  8 00:20:55 rh63-heartbeat2 crmd: [22372]: info: te_rsc_command:
> Initiating action 4: monitor vip-master_monitor_0 on rh63-heartbeat1
> Mar  8 00:20:55 rh63-heartbeat2 crmd: [22372]: info: te_rsc_command:
> Initiating action 7: monitor vip-master_monitor_0 on rh63-heartbeat2 (local)
> Mar  8 00:20:55 rh63-heartbeat2 crmd: [22372]: info: te_rsc_command:
> Initiating action 5: monitor vip-rep_monitor_0 on rh63-heartbeat1
> Mar  8 00:20:55 rh63-heartbeat2 crmd: [22372]: info: te_rsc_command:
> Initiating action 8: monitor vip-rep_monitor_0 on rh63-heartbeat2 (local)
> Mar  8 00:20:55 rh63-heartbeat2 crmd: [22372]: info: te_rsc_command:
> Initiating action 6: probe_complete probe_complete on rh63-heartbeat2
> (local) - no waiting
> Mar  8 00:20:56 rh63-heartbeat2 crmd: [22372]: info: te_rsc_command:
> Initiating action 3: probe_complete probe_complete on rh63-heartbeat1 - no
> waiting
> Mar  8 00:20:56 rh63-heartbeat2 crmd: [22372]: info: te_rsc_command:
> Initiating action 5: start vip-master_start_0 on rh63-heartbeat1
> Mar  8 00:20:58 rh63-heartbeat2 crmd: [22372]: info: te_rsc_command:
> Initiating action 1: stop vip-master_stop_0 on rh63-heartbeat1
>
>
> Case 2) sequential=true
> (snip)
>     <constraints>
>       <rsc_colocation id="test-colocation" score="INFINITY">
>         <resource_set sequential="true" id="test-colocation-resource_set">
>           <resource_ref id="vip-master"/>
>           <resource_ref id="vip-rep"/>
>         </resource_set>
>       </rsc_colocation>
>     </constraints>
> (snip)
> [root at rh63-heartbeat2 ~]# grep "Initiating action" /var/log/ha-log
> Mar  7 23:54:44 rh63-heartbeat2 crmd: [22224]: info: te_rsc_command:
> Initiating action 2: probe_complete probe_complete on rh63-heartbeat1 - no
> waiting
> Mar  7 23:54:44 rh63-heartbeat2 crmd: [22224]: info: te_rsc_command:
> Initiating action 3: probe_complete probe_complete on rh63-heartbeat2
> (local) - no waiting
> Mar  7 23:54:48 rh63-heartbeat2 crmd: [22224]: info: te_rsc_command:
> Initiating action 4: monitor vip-master_monitor_0 on rh63-heartbeat1
> Mar  7 23:54:48 rh63-heartbeat2 crmd: [22224]: info: te_rsc_command:
> Initiating action 7: monitor vip-master_monitor_0 on rh63-heartbeat2 (local)
> Mar  7 23:54:48 rh63-heartbeat2 crmd: [22224]: info: te_rsc_command:
> Initiating action 5: monitor vip-rep_monitor_0 on rh63-heartbeat1
> Mar  7 23:54:48 rh63-heartbeat2 crmd: [22224]: info: te_rsc_command:
> Initiating action 8: monitor vip-rep_monitor_0 on rh63-heartbeat2 (local)
> Mar  7 23:54:48 rh63-heartbeat2 crmd: [22224]: info: te_rsc_command:
> Initiating action 6: probe_complete probe_complete on rh63-heartbeat2
> (local) - no waiting
> Mar  7 23:54:49 rh63-heartbeat2 crmd: [22224]: info: te_rsc_command:
> Initiating action 3: probe_complete probe_complete on rh63-heartbeat1 - no
> waiting
> Mar  7 23:54:49 rh63-heartbeat2 crmd: [22224]: info: te_rsc_command:
> Initiating action 5: start vip-master_start_0 on rh63-heartbeat1
> Mar  7 23:54:51 rh63-heartbeat2 crmd: [22224]: info: te_rsc_command:
> Initiating action 1: stop vip-master_stop_0 on rh63-heartbeat1
>
>
You set target-role=stopped for master but rep did not stop?
If so that is certainly a bug.


>
> Best Regards,
> Hideo Yamauchi.
>
>
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