[Pacemaker] IP Range Failover with IPaddr2 and clone / globally-unique="true"

Dejan Muhamedagic dejanmm at fastmail.fm
Wed Jan 25 09:56:39 EST 2012


On Wed, Jan 25, 2012 at 03:24:09PM +0100, Anton Melser wrote:
> > Let's try that again with something useful!
> >
> > I'm not an expert on it but...
> >
> > unique_clone_address:
> > If true, add the clone ID to the supplied value of ip to create a unique address to manage (optional, boolean, default false)
> >
> > So for example:
> > primitive ClusterIP ocf:heartbeat:IPaddr2 \
> >    params ip="10.0.0.1" cidr_netmask="32" clusterip_hash="sourceip" \
> >    op monitor interval="30s"
> > clone CloneIP ClusterIP \
> >    meta globally-unique="true" clone-max="8"
> >
> > would result in 8 ip's: 10.0.0.2, 10.0.0.3, etc.
> 
> Ok, so I have reinstalled everything and have a clean setup. However,
> it still ain't workin unfortunately. Can you explain how I'm supposed
> to use unique_clone_address? This is mentioned at the start of the
> thread but not with the command. I tried doing what you suggest here:
> 
> # primitive ClusterIP.144.1 ocf:heartbeat:IPaddr2 params
> ip="10.144.1.1" cidr_netmask="32" clusterip_hash="sourceip" op monitor
> interval="120s"
> # clone CloneIP ClusterIP.144.1 meta globally-unique="true" clone-max="8"

You have just two nodes so with this configuration you get two
clones. You can add meta clone-node-max=8 (or whatever fits your
needs) to have more clones running per node.

Thanks,

Dejan

> That gave:
> 
> [root at FW1 ~]# crm status
> ============
> Last updated: Wed Jan 25 13:57:51 2012
> Last change: Wed Jan 25 13:57:05 2012 via cibadmin on FW1
> Stack: openais
> Current DC: FW1 - partition with quorum
> Version: 1.1.6-3.el6-a02c0f19a00c1eb2527ad38f146ebc0834814558
> 2 Nodes configured, 2 expected votes
> 8 Resources configured.
> ============
> 
> Online: [ FW1 FW2 ]
> 
>  Clone Set: CloneIP.144.1 [ClusterIP.144.1] (unique)
>      ClusterIP.144.1:0  (ocf::heartbeat:IPaddr2):       Started FW1
>      ClusterIP.144.1:1  (ocf::heartbeat:IPaddr2):       Started FW2
>      ClusterIP.144.1:2  (ocf::heartbeat:IPaddr2):       Stopped
>      ClusterIP.144.1:3  (ocf::heartbeat:IPaddr2):       Stopped
>      ClusterIP.144.1:4  (ocf::heartbeat:IPaddr2):       Stopped
>      ClusterIP.144.1:5  (ocf::heartbeat:IPaddr2):       Stopped
>      ClusterIP.144.1:6  (ocf::heartbeat:IPaddr2):       Stopped
>      ClusterIP.144.1:7  (ocf::heartbeat:IPaddr2):       Stopped
> 
> But none of the IPs were pingable after running the clone (just with
> the primitive it was ok).
> doing:
> crm(live)# configure property stop-all-resources=false
> Didn't get the other IPs "Started".
> 
> So I got rid of this (successfully) and tried:
> 
> primitive ClusterIP.144.1 ocf:heartbeat:IPaddr2 params ip="10.144.1.1"
> cidr_netmask="32" clusterip_hash="sourceip"
> unique_clone_address="true" op monitor interval="120s"
> 
> But now I have:
> 
> crm(live)#  status
> ============
> Last updated: Wed Jan 25 14:57:42 2012
> Last change: Wed Jan 25 14:50:09 2012 via cibadmin on FW1
> Stack: openais
> Current DC: FW1 - partition with quorum
> Version: 1.1.6-3.el6-a02c0f19a00c1eb2527ad38f146ebc0834814558
> 2 Nodes configured, 2 expected votes
> 1 Resources configured.
> ============
> 
> Online: [ FW1 FW2 ]
> 
>  ClusterIP.144.1        (ocf::heartbeat:IPaddr2):       Started FW1
> (unmanaged) FAILED
> 
> Failed actions:
>     ClusterIP.144.1_stop_0 (node=FW1, call=25, rc=6, status=complete):
> not configured
> 
> And I can't delete it:
> crm(live)# configure property stop-all-resources=true
> crm(live)# configure commit
> INFO: apparently there is nothing to commit
> INFO: try changing something first
> crm(live)# configure erase
> WARNING: resource ClusterIP.144.1 is running, can't delete it
> ERROR: CIB erase aborted (nothing was deleted)
> 
> I can't work out how to move forward... Any pointers?
> Cheers
> Anton
> 
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