[ClusterLabs] Error at testing live migration

[Andrew Beekhof]

> On 28 Mar 2015, at 4:46 am, Wilson Acero <rasalax at hotmail.com> wrote:
> 
> Hi everybody, 
> 
> I have a pacemaker + corosync cluster that manages a virtual machine (kvm) the virtual machine drives are stored in  a shared storage (gfs2 + lvm+ iscsi LUN). The resource agent is VirtualDomain. 
> 
> When I test the live migration with a command  'pcs resource move vmcentos2 nodo2' or putting the node on standby, the migration works with no problem. 
> 
> But when I want to test the live migration rebooting or  shutting down the node that runs the virtual machine, migration fails. Is this a expected behaviour or a bug?

Its a bug.
In addition to the "After: dbus.service" hint that Ken gave you, you need the following patches (present in 1.1.13-rc1)

+ Andrew Beekhof (6 days ago) 2ab97ec: Fix: systemd: Trick systemd into not stopping our services before us during shutdown 
+ Andrew Beekhof (6 days ago) 0315c57: Fix: systemd: Kindly ask dbus NOT to kill the process if the dbus connection fails 
+ Andrew Beekhof (7 days ago) 90d725d: Fix: systemd: Tell systemd not to take DBus down from underneath us 

> 
> My cluster configuration is:
> 
> OS=Centos 7 
> Pacemaker 1.1.10-32.el7_0.1
> Corosync Cluster Engine, version '2.3.3'
> 
> [root at nodo2 ~]# pcs status
> Cluster name: clusterwa
> Last updated: Fri Mar 27 12:20:04 2015
> Last change: Thu Mar 26 16:11:11 2015 via crm_resource on nodo2
> Stack: corosync
> Current DC: nodo2 (2) - partition with quorum
> Version: 1.1.10-32.el7_0.1-368c726
> 5 Nodes configured
> 29 Resources configured
> 
> Online: [ nodo2 nodo3 nodo4 ]
> Containers: [ centos1.7:vmcentos3 ]
> 
> Full list of resources:
> 
>  wti_wa (stonith:fence_wti):    Started nodo3
>  Clone Set: dlmwa-clone [dlmwa]
>      Started: [ nodo2 nodo3 nodo4 ]
>      Stopped: [ centos1.7 centosSC3 ]
>  Clone Set: clvmwa-clone [clvmwa]
>      Started: [ nodo2 nodo3 nodo4 ]
>      Stopped: [ centos1.7 centosSC3 ]
>  Clone Set: gfs2wa-clone [gfs2wa]
>      Started: [ nodo2 nodo3 nodo4 ]
>      Stopped: [ centos1.7 centosSC3 ]
>  vmcentos2      (ocf::heartbeat:VirtualDomain): Started nodo2
> 
>  Clone Set: iscsiwa-clone [iscsiwa]
>      Started: [ nodo2 nodo3 nodo4 ]
>      Stopped: [ centos1.7 centosSC3 ]
> 
> PCSD Status:
>   nodo2: Online
>   nodo3: Online
>   nodo4: Online
> 
> Daemon Status:
>   corosync: active/enabled
>   pacemaker: active/enabled
>   pcsd: active/enabled
> 
> Many thanks. 
> Many thanks.
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