[ClusterLabs] Floating IP active in both nodes
Gabriel Buades
gbuades at soffid.com
Fri Oct 26 12:36:37 EDT 2018
Thanks Dileep.
I've modified the setup to match your suggestion, but I've got the same
result.
Executing ifconfig -a, I can see node 1 has the floating IP added to the
ethernet device.
Executing ifconfig -a in node 2, the floating IP is missing, as expected.
But when node 2 tries to connect to the floating IP, it connects to itself.
Any other suggestion?
El vie., 26 oct. 2018 a las 15:27, Dileep V Nair (<dilenair at in.ibm.com>)
escribió:
> Hello Gabriel,
>
> I have a similar cluster configuration running fine. I am using the
> virtual IP to NFS mount a filesystem from Node 1 to node 2. The differences
> I could see from your configuration ..
>
> > primitive site_one_ip ocf:heartbeat:IPaddr \
> > params ip="192.168.2.200" cidr_netmask="255.255.252.0" nic="eth0" \
> > op monitor interval="40s" timeout="20s"
>
>
> I use ocf:heartbeat:IPaddr2
> I have given only the IP parameter, no netmask and nic
> I have a virtual hostname associated with the IP addr using /etc/hosts
> and use the virtual hostname to connect.
>
>
>
> Thanks & Regards
>
> *Dileep Nair*
> Squad Lead - SAP Base
> IBM Services for Managed Applications
> +91 98450 22258 Mobile
> dilenair at in.ibm.com
>
> IBM *Services*
>
> [image: Inactive hide details for Gabriel Buades ---10/26/2018 06:34:46
> PM---Hello Andrei. I did not add lvs_support at first. I added]Gabriel
> Buades ---10/26/2018 06:34:46 PM---Hello Andrei. I did not add lvs_support
> at first. I added it later when noticed the
>
> From: Gabriel Buades <gbuades at soffid.com>
> To: users at clusterlabs.org
> Date: 10/26/2018 06:34 PM
> Subject: Re: [ClusterLabs] Floating IP active in both nodes
> Sent by: "Users" <users-bounces at clusterlabs.org>
> ------------------------------
>
>
>
> Hello Andrei.
>
>
> I did not add lvs_support at first. I added it later when noticed the
> problem to test if something changes, but I got same result
>
> Gabriel
>
>
> El vie., 26 oct. 2018 a las 11:47, Andrei Borzenkov (<
> *arvidjaar at gmail.com* <arvidjaar at gmail.com>>) escribió:
>
> 26.10.2018 11:14, Gabriel Buades пишет:
> > Dear cluster labs team.
> >
> > I previously configured a two nodes cluster with replicated maria Db.
> > To use one database as the active, and the other one as failover, I
> > configured a cluster using heartbeat:
> >
> > root at logpmgid01v:~$ sudo crm configure show
> > node $id="59bbdb76-be67-4be0-aedb-9e27d65f371e" logpmgid01v
> > node $id="adbc5972-c491-4fc4-b87d-8170e1b2d4d0" logpmgid02v \
> > attributes standby="off"
> > primitive site_one_ip ocf:heartbeat:IPaddr \
> > params ip="192.168.2.200" cidr_netmask="255.255.252.0" nic="eth0" \
> > op monitor interval="40s" timeout="20s"
> > location site_one_ip_pref site_one_ip 100: logpmgid01v
> > property $id="cib-bootstrap-options" \
> > dc-version="1.1.10-42f2063" \
> > cluster-infrastructure="heartbeat" \
> > stonith-enabled="false"
> >
> > Now, I've done a similar setup using corosync:
> > root at 908soffid02:~# crm configure show
> > node 1: 908soffid01
> > node 2: 908soffid02
> > primitive site_one_ip IPaddr \
> > params ip=10.6.12.118 cidr_netmask=255.255.0.0 nic=ens160
> lvs_support=true \
>
> What is the reason you added lvs_support? Previous configuration did
> not
> have it.
>
> > meta target-role=Started is-managed=true
> > location cli-prefer-site_one_ip site_one_ip role=Started inf:
> 908soffid01
> > location site_one_ip_pref site_one_ip 100: 908soffid01
> > property cib-bootstrap-options: \
> > have-watchdog=false \
> > dc-version=1.1.14-70404b0 \
> > cluster-infrastructure=corosync \
> > cluster-name=debian \
> > stonith-enabled=false \
> > no-quorum-policy=ignore \
> > maintenance-mode=false
> >
> > Apparently, it works fine, and floating IP address is active in
> node1:
> > root at 908soffid02:~# crm_mon -1
> > Last updated: Fri Oct 26 10:06:12 2018 Last change: Fri Oct 26
> 10:02:53
> > 2018 by root via cibadmin on 908soffid02
> > Stack: corosync
> > Current DC: 908soffid01 (version 1.1.14-70404b0) - partition with
> quorum
> > 2 nodes and 1 resource configured
> >
> > Online: [ 908soffid01 908soffid02 ]
> >
> > site_one_ip (ocf::heartbeat:IPaddr): Started 908soffid01
> >
> > But when node2 tries to connect to the floating IP address, it gets
> > connected to itself, despite the IP address is bound to the first
> node:
> > root at 908soffid02:~# ssh *root at 10.6.12.118* <root at 10.6.12.118>
> hostname
> > root at soffiddb's password:
> > 908soffid02
> >
> > I'd want the second node connects to the actual floating IP address,
> but I
> > cannot see how to set it up. Any help is welcome.
> >
> > I am using pacemaker 1.1.14-2ubuntu1.4 and corosync 2.3.5-3ubuntu2.1
> >
> > Kind regards.
> >
> >
> >
> > Gabriel Buades
> >
> >
> > _______________________________________________
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