[ClusterLabs] VirtualDomain stop operation traced - but nothing appears in /var/lib/heartbeat/trace_ra/

[Reid Wahl]

If you set trace_ra=1 as an instance attribute of the primitive
(rather than of the stop operation), it should capture a trace of all
operations, including stop. I know this isn't exactly what you're
asking, since tracing every operation will result in more logs.

With that being said, I tested on an ocf:heartbeat:Dummy resource.
When I added trace_ra=1 as an instance attribute of the monitor
operation, it **did** capture a trace of recurring monitors. When I
added trace_ra=1 as an instance attribute of the stop operation, it
**did not** capture a trace of the stop.

I don't know off the top of my head how Pacemaker handles
<instance_attributes> that are nested within an <op>, so I'm not sure
why there's a discrepancy between monitor and stop operations.

On Mon, Sep 28, 2020 at 12:43 PM Lentes, Bernd
<bernd.lentes at helmholtz-muenchen.de> wrote:
>
> Hi,
>
> currently i have a VirtualDomains resource which sometimes fails to stop.
> To investigate further i'm tracing the stop operation of this resource.
> But although i stopped it already now several times, nothing appears in /var/lib/heartbeat/trace_ra/.
>
> This is my config:
> primitive vm_amok VirtualDomain \
>         params config="/mnt/share/vm_amok.xml" \
>         params hypervisor="qemu:///system" \
>         params migration_transport=ssh \
>         params migrate_options="--p2p --tunnelled" \
>         op start interval=0 timeout=120 \
>         op monitor interval=30 timeout=25 \
>         op migrate_from interval=0 timeout=300 \
>         op migrate_to interval=0 timeout=300 \
>         op stop interval=0 timeout=180 \
>         op_params trace_ra=1 \
>         meta allow-migrate=true target-role=Started is-managed=true maintenance=false \
>
>  <primitive id="vm_amok" class="ocf" provider="heartbeat" type="VirtualDomain">
>         <instance_attributes id="vm_amok-instance_attributes">
>           <nvpair name="config" value="/mnt/share/vm_amok.xml" id="vm_amok-instance_attributes-config"/>
>         </instance_attributes>
>         <instance_attributes id="vm_amok-instance_attributes-0">
>           <nvpair name="hypervisor" value="qemu:///system" id="vm_amok-instance_attributes-0-hypervisor"/>
>         </instance_attributes>
>         <instance_attributes id="vm_amok-instance_attributes-1">
>           <nvpair name="migration_transport" value="ssh" id="vm_amok-instance_attributes-1-migration_transport"/>
>         </instance_attributes>
>         <instance_attributes id="vm_amok-instance_attributes-2">
>           <nvpair name="migrate_options" value="--p2p --tunnelled" id="vm_amok-instance_attributes-2-migrate_options"/>
>         </instance_attributes>
>         <operations>
>           <op name="start" interval="0" timeout="120" id="vm_amok-start-0"/>
>           <op name="monitor" interval="30" timeout="25" id="vm_amok-monitor-30"/>
>           <op name="migrate_from" interval="0" timeout="300" id="vm_amok-migrate_from-0"/>
>           <op name="migrate_to" interval="0" timeout="300" id="vm_amok-migrate_to-0"/>
>           <op name="stop" interval="0" timeout="180" id="vm_amok-stop-0">
>             <instance_attributes id="vm_amok-stop-0-instance_attributes">
>               <nvpair name="trace_ra" value="1" id="vm_amok-stop-0-instance_attributes-trace_ra"/>
>             </instance_attributes>
>           </op>
>         </operations>
>
> Any ideas ?
> SLES 12 SP4, pacemaker-1.1.19+20181105.ccd6b5b10-3.13.1.x86_64
>
> Bernd
>
> --
>
> Bernd Lentes
> Systemadministration
> Institute for Metabolism and Cell Death (MCD)
> Building 25 - office 122
> HelmholtzZentrum München
> bernd.lentes at helmholtz-muenchen.de
> phone: +49 89 3187 1241
> phone: +49 89 3187 3827
> fax: +49 89 3187 2294
> http://www.helmholtz-muenchen.de/mcd
>
> stay healthy
> Helmholtz Zentrum München
>
> Helmholtz Zentrum München
>
> _______________________________________________
> Manage your subscription:
> https://lists.clusterlabs.org/mailman/listinfo/users
>
> ClusterLabs home: https://www.clusterlabs.org/



-- 
Regards,

Reid Wahl, RHCA
Senior Software Maintenance Engineer, Red Hat
CEE - Platform Support Delivery - ClusterHA