[ClusterLabs] Floating IP active in both nodes

[Andrei Borzenkov]

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 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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