[ClusterLabs] two node cluster: vm starting - shutting down 15min later - starting again 15min later ... and so on

Lentes, Bernd bernd.lentes at helmholtz-muenchen.de
Thu Feb 9 16:48:06 UTC 2017


Hi,

i have a two node cluster with a vm as a resource. Currently i'm just testing and playing. My vm boots and shuts down again in 15min gaps.
Surely this is related to "PEngine Recheck Timer (I_PE_CALC) just popped (900000ms)" found in the logs. I googled, and it is said that this
is due to time-based rule (http://oss.clusterlabs.org/pipermail/pacemaker/2009-May/001647.html). OK.
But i don't have any time-based rules.
This is the config for my vm:

primitive prim_vm_mausdb VirtualDomain \
        params config="/var/lib/libvirt/images/xml/mausdb_vm.xml" \
        params hypervisor="qemu:///system" \
        params migration_transport=ssh \
        op start interval=0 timeout=90 \
        op stop interval=0 timeout=95 \
        op monitor interval=30 timeout=30 \
        op migrate_from interval=0 timeout=100 \
        op migrate_to interval=0 timeout=120 \
        meta allow-migrate=true \
        meta target-role=Started \
        utilization cpu=2 hv_memory=4099

The only constraint concerning the vm i had was a location (which i didn't create).
Ok, this timer is available, i can set it to zero to disable it.
But why does it influence my vm in such a manner ?

Excerp from the log:

...
Feb  9 16:19:38 ha-idg-1 VirtualDomain(prim_vm_mausdb)[13148]: INFO: Domain mausdb_vm already stopped.
Feb  9 16:19:38 ha-idg-1 crmd[8407]:   notice: process_lrm_event: Operation prim_vm_mausdb_stop_0: ok (node=ha-idg-1, call=401, rc=0, cib-update=340, confirmed=true)
Feb  9 16:19:38 ha-idg-1 kernel: [852506.947196] device vnet0 entered promiscuous mode
Feb  9 16:19:38 ha-idg-1 kernel: [852507.008770] br0: port 2(vnet0) entering forwarding state
Feb  9 16:19:38 ha-idg-1 kernel: [852507.008775] br0: port 2(vnet0) entering forwarding state
Feb  9 16:19:38 ha-idg-1 kernel: [852507.172120] qemu-kvm: sending ioctl 5326 to a partition!
Feb  9 16:19:38 ha-idg-1 kernel: [852507.172133] qemu-kvm: sending ioctl 80200204 to a partition!
Feb  9 16:19:41 ha-idg-1 crmd[8407]:   notice: process_lrm_event: Operation prim_vm_mausdb_start_0: ok (node=ha-idg-1, call=402, rc=0, cib-update=341, confirmed=true)
Feb  9 16:19:41 ha-idg-1 crmd[8407]:   notice: process_lrm_event: Operation prim_vm_mausdb_monitor_30000: ok (node=ha-idg-1, call=403, rc=0, cib-update=342, confirmed=false)
Feb  9 16:19:48 ha-idg-1 kernel: [852517.049015] vnet0: no IPv6 routers present
...
Feb  9 16:34:41 ha-idg-1 VirtualDomain(prim_vm_mausdb)[18272]: INFO: Issuing graceful shutdown request for domain mausdb_vm.
Feb  9 16:35:06 ha-idg-1 kernel: [853434.550089] br0: port 2(vnet0) entering forwarding state
Feb  9 16:35:06 ha-idg-1 kernel: [853434.550160] device vnet0 left promiscuous mode
Feb  9 16:35:06 ha-idg-1 kernel: [853434.550165] br0: port 2(vnet0) entering disabled state
Feb  9 16:35:06 ha-idg-1 ifdown:     vnet0
Feb  9 16:35:06 ha-idg-1 ifdown: Interface not available and no configuration found.
Feb  9 16:35:07 ha-idg-1 crmd[8407]:   notice: process_lrm_event: Operation prim_vm_mausdb_stop_0: ok (node=ha-idg-1, call=405, rc=0, cib-update=343, confirmed=true)
...

I deleted the location and until that vm is running fine for already 35min.

System is SLES 11 SP4 64bit, vm is SLES 10 SP4 64bit.

Thanks.

Bernd

-- 
Bernd Lentes 

Systemadministration 
institute of developmental genetics 
Gebäude 35.34 - Raum 208 
HelmholtzZentrum München 
bernd.lentes at helmholtz-muenchen.de 
phone: +49 (0)89 3187 1241 
fax: +49 (0)89 3187 2294 

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