[CentOS] Fwd: HA cluster - strange communication between nodes

[Marlon Guao]

Hi Martin.

for how long you turned off the other node? I suspect that you need to
configure time-outs to the cluster. Additional cluster parameters can be
found here.

https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Configuring_the_Red_Hat_High_Availability_Add-On_with_Pacemaker/s1-fencedevicesadditional-HAAR.html


On Wed, Jan 15, 2014 at 6:56 PM, Martin Moravcik <centos at datalock.sk> wrote:

> On 14/01/14 19:37, marlon guao wrote:
> > Hi Martin.
> >
> > if you could provide us your config like, put the output of the command
> > below.
> >
> > pcs configure show
> >
> > or
> >
> > crm configure show
> >
> > maybe we could get a better idea of your setup.
> >
> >
> > On 01/14/2014 06:34 PM, Giorgio Bersano wrote:
> >> 2014/1/13 Martin Moravcik <centos at datalock.sk>:
> >>> I'm sorry.
> >>> My systems are fully updated CentOS 6.5.
> >>> I'm using only standard centos repositories.
> >>>
> >>> martin
> >>>
> >>> On 13/01/14 15:17, Patrick Lists wrote:
> >>>> On 13-01-14 14:52, Martin Moravcik wrote:
> >>>>> Hi,
> >>>>>
> >>>>> For a testing purposes I'm trying to create two node HA environment
> for
> >>>>> running some service (openvpn and haproxy). I installed two CentOS
> 6.4
> >>>>> KVM guests.
> >>>> Iirc CentOS 6.5 came with several updates to cluster related packages
> so
> >>>> you may want to investigate and update to 6.5.
> >>>>
> >>>> Regards,
> >>>> Patrick
> >>>>
> >> Hy Martin,
> >> I've not looked carefully at what your problem is and don't know how
> >> skilled in HA you are but I heartily suggest you - if you haven't done
> >> before - to read/study Digimer's tutorial
> >> https://alteeve.ca/w/AN!Cluster_Tutorial_2
> >>
> >> I think it's unbeatable!
> >>
> >> Best regards,
> >> Giorgio
> >> _______________________________________________
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> >
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> >
>
> Thanks for your interest and for your help.
> Here is the output from command (pcs config show)
>
> [root at lb1 ~]# pcs config show
> Cluster Name: LB.STK
> Corosync Nodes:
>
> Pacemaker Nodes:
>   lb1.asol.local lb2.asol.local
>
> Resources:
>   Group: LB
>    Resource: LAN.VIP (class=ocf provider=heartbeat type=IPaddr2)
>     Attributes: ip=172.16.139.113 cidr_netmask=24 nic=eth1
>     Operations: monitor interval=15s (LAN.VIP-monitor-interval-15s)
>    Resource: WAN.VIP (class=ocf provider=heartbeat type=IPaddr2)
>     Attributes: ip=172.16.139.110 cidr_netmask=24 nic=eth0
>     Operations: monitor interval=15s (WAN.VIP-monitor-interval-15s)
>    Resource: OPENVPN (class=lsb type=openvpn)
>     Operations: monitor interval=20s (OPENVPN-monitor-interval-20s)
>                 start interval=0s timeout=20s (OPENVPN-start-timeout-20s)
>                 stop interval=0s timeout=20s (OPENVPN-stop-timeout-20s)
>
> Stonith Devices:
> Fencing Levels:
>
> Location Constraints:
> Ordering Constraints:
> Colocation Constraints:
>
> Cluster Properties:
>   cluster-infrastructure: cman
>   dc-version: 1.1.10-14.el6_5.1-368c726
>   stonith-enabled: false
>
>
> When I start cluster after reboot of both nodes, everythings looks fine.
> But when shoot command "pcs resource delete OPENVPN" from node lb1 in
> the log starts to popup these lines:
> Jan 15 13:56:37 corosync [TOTEM ] Retransmit List: 202
> Jan 15 13:57:08 corosync [TOTEM ] Retransmit List: 202 203
> Jan 15 13:57:38 corosync [TOTEM ] Retransmit List: 202 203 204
> Jan 15 13:58:08 corosync [TOTEM ] Retransmit List: 202 203 204 206
> Jan 15 13:58:38 corosync [TOTEM ] Retransmit List: 202 203 204 206 208
> Jan 15 13:59:08 corosync [TOTEM ] Retransmit List: 202 203 204 206 208 209
>
> I also noticed, that these retransmit entries starts to appear even
> after some time (7 minutes) from fresh cluster start without doing any
> change or manipulation with cluster.
>
> Thanks
>
> martin
>
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>



-- 
>>> import this