[ClusterLabs] resources do not migrate although node is going to standby

Mon Jul 24 19:45:14 UTC 2017

hmmi think that it is just prefered location, if it is not available, server should start on other node. you can of cource migrate manualy byt crm resource move resource_name node_name - which in effect change that location pref

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> On 24 Jul 2017, at 20:52, Lentes, Bernd <bernd.lentes at helmholtz-muenchen.de> wrote:
> 
> Hi,
> 
> just to be sure:
> i have a VirtualDomain resource (called prim_vm_servers_alive) running on one node (ha-idg-2). From reasons i don't remember i have a location constraint:
> location cli-prefer-prim_vm_servers_alive prim_vm_servers_alive role=Started inf: ha-idg-2
> 
> Now i try to set this node into standby, because i need it to reboot.
> From what i think now the resource can't migrate to node ha-idg-1 because of this constraint. Right ?
> 
> That's what the log says:
> Jul 21 18:03:50 ha-idg-2 VirtualDomain(prim_vm_servers_alive)[28565]: ERROR: Server_Monitoring: live migration to qemu+ssh://ha-idg-1/system  failed: 1
> Jul 21 18:03:50 ha-idg-2 lrmd[8573]:   notice: operation_finished: prim_vm_servers_alive_migrate_to_0:28565:stderr [ error: Requested operation is not valid: domain 'Server_Monitoring' is already active ]
> Jul 21 18:03:50 ha-idg-2 crmd[8576]:   notice: process_lrm_event: Operation prim_vm_servers_alive_migrate_to_0: unknown error (node=ha-idg-2, call=114, rc=1, cib-update=572, confirmed=true)
> Jul 21 18:03:50 ha-idg-2 crmd[8576]:   notice: process_lrm_event: ha-idg-2-prim_vm_servers_alive_migrate_to_0:114 [ error: Requested operation is not valid: domain 'Server_Monitoring' is already active\n ]
> Jul 21 18:03:50 ha-idg-2 crmd[8576]:  warning: status_from_rc: Action 64 (prim_vm_servers_alive_migrate_to_0) on ha-idg-2 failed (target: 0 vs. rc: 1): Error
> Jul 21 18:03:50 ha-idg-2 crmd[8576]:   notice: abort_transition_graph: Transition aborted by prim_vm_servers_alive_migrate_to_0 'modify' on ha-idg-2: Event failed (magic=0:1;64:417:0:656ecd4a-f8e8-46c9-b4e6-194616237988, cib=0.879.5, sou
> rce=match_graph_event:350, 0)
> Jul 21 18:03:50 ha-idg-2 crmd[8576]:  warning: status_from_rc: Action 64 (prim_vm_servers_alive_migrate_to_0) on ha-idg-2 failed (target: 0 vs. rc: 1): Error
> Jul 21 18:03:53 ha-idg-2 VirtualDomain(prim_vm_mausdb)[28564]: ERROR: mausdb_vm: live migration to qemu+ssh://ha-idg-1/system  failed: 1
> 
> That is the way i understand "Requested operation is not valid". It's not possible because of the constraint.
> I just wanted to be sure. And because the resource can't be migrated but the host is going to standby the resource is stopped. Right ?
> 
> Strange is that a second resource also running on node ha-idg-2 called prim_vm_mausdb also didn't migrate to the other node. And that's something i don't understand completely.
> The resource didn't have any location constraint.
> Both VirtualDomains have a vnc server configured (that i can monitor the boot procedure if i have starting problems). The vnc port for prim_vm_mausdb is 5900 in the configuration file.
> The port is set to auto for prim_vm_servers_alive because i forgot to configure it fix. So it must be s.th like 5900+ because both resources were running concurrently on the same node.
> But prim_vm_mausdb can't migrate because the port is occupied on the other node ha-idg-1:
> 
> Jul 21 18:03:53 ha-idg-2 VirtualDomain(prim_vm_mausdb)[28564]: ERROR: mausdb_vm: live migration to qemu+ssh://ha-idg-1/system  failed: 1
> Jul 21 18:03:53 ha-idg-2 lrmd[8573]:   notice: operation_finished: prim_vm_mausdb_migrate_to_0:28564:stderr [ error: internal error: early end of file from monitor: possible problem: ]
> Jul 21 18:03:53 ha-idg-2 lrmd[8573]:   notice: operation_finished: prim_vm_mausdb_migrate_to_0:28564:stderr [ Failed to start VNC server on `127.0.0.1:0,share=allow-exclusive': Failed to bind socket: Address already in use ]
> Jul 21 18:03:53 ha-idg-2 lrmd[8573]:   notice: operation_finished: prim_vm_mausdb_migrate_to_0:28564:stderr [  ]
> Jul 21 18:03:53 ha-idg-2 crmd[8576]:   notice: process_lrm_event: Operation prim_vm_mausdb_migrate_to_0: unknown error (node=ha-idg-2, call=110, rc=1, cib-update=573, confirmed=true)
> Jul 21 18:03:53 ha-idg-2 crmd[8576]:   notice: process_lrm_event: ha-idg-2-prim_vm_mausdb_migrate_to_0:110 [ error: internal error: early end of file from monitor: possible problem:\nFailed to start VNC server on `127.0.0.1:0,share=allow
> -exclusive': Failed to bind socket: Address already in use\n\n ]
> Jul 21 18:03:53 ha-idg-2 crmd[8576]:  warning: status_from_rc: Action 51 (prim_vm_mausdb_migrate_to_0) on ha-idg-2 failed (target: 0 vs. rc: 1): Error
> Jul 21 18:03:53 ha-idg-2 crmd[8576]:  warning: status_from_rc: Action 51 (prim_vm_mausdb_migrate_to_0) on ha-idg-2 failed (target: 0 vs. rc: 1): Error
> 
> Do i understand it correctly that the port is occupied on the node it should migrate to (ha-idg-1) ?
> But there is no vm running and i don't have a standalone vnc server configured. Why is the port occupied ?
> 
> Btw: the network sockets are live migrated too during a live migration of a VirtualDomain resource ?
> It should be like that.
> 
> Thanks.
> 
> 
> Bernd
> 
> 
> 
> -- 
> Bernd Lentes 
> 
> Systemadministration 
> institute of developmental genetics 
> Gebäude 35.34 - Raum 208 
> HelmholtzZentrum München 
> bernd.lentes at helmholtz-muenchen.de 
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> fax: +49 (0)89 3187 2294 
> 
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