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

[renayama19661014 at ybb.ne.jp]

Hi Andrew,

Thank your for comments.
 
> > > 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. 

However, you made next reply.
I used colocation_set in substitution for ordered=false.

>>You use the resource sets _instead_ of a group. 
>>If you want group.ordered=false, then use a colocation set (with 
>>sequential=true). 
>>If you want group.colocated=false, then use an ordering set (with 
>>sequential=true). 

After all is it right that the substitute for ordered=false of group sets order_set?

Best Regards,
Hideo Yamauchi.



--- On Fri, 2013/3/22, Andrew Beekhof <andrew at beekhof.net> wrote:

> 
> 
> 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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