Open Stack

I see you have different netmasks for the VIP on node1 vs. node2;  I would also try breaking them out of the vrrp_sync_group and validating at least 1 router will fail independently.

From: Openstack [mailto:openstack-bounces+eric_e_smith=dell.com at lists.launchpad.net] On Behalf Of Lei Zhang
Sent: Monday, May 06, 2013 3:07 AM
To: openstack at lists.launchpad.net
Subject: [Openstack] keepalive can not check the haproxy is down.


Hi Guys,

I am trying to use keepalive and haproxy to work together to improve the HA of the openstack. But I meet following
unexpected issue.

I expect that when the haproxy process is crashed on the MASTER node(checked by chk_haproxy), the second node
will take over the VIP. But when I stop the haproxy process, nothing is happened.
However, when stop the keepalived service, the VIP is set up on the node2 as expected.

So I think the root cause should be the chk_haproxy block. But I have no idea why it doesn't work. Does any body have
ideas?

node1 keepalived.conf

global_defs {

    lvs_id LVS_228

}



vrrp_sync_group openstack_haproxy {

    group {

        v1

        v2

    }

}

vrrp_script chk_haproxy {

    script "killall -0 haproxy"

    interval 2

    debug

    weight 2

}

vrrp_instance v1 {

    interface eth0

    debug

    state MASTER

    virtual_router_id 1

    priority 101

    virtual_ipaddress {

        192.168.0.230/24<http://192.168.0.230/24>

    }

    track_script {

        chk_haproxy

    }

}

vrrp_instance v2 {

    interface eth1

    state MASTER

    debug

    virtual_router_id 2

    priority 101

    virtual_ipaddress {

        10.1.0.30/16<http://10.1.0.30/16>

    }

    track_script {

        chk_haproxy

    }

}

node2 keepalived.conf

global_defs {

    lvs_id LVS_229

}



vrrp_sync_group openstack_haproxy {

    group {

        v1

        v2

    }

}

vrrp_script chk_haproxy {

    script "killall -0 haproxy"

    interval 2

    weight 2

}

vrrp_instance v1 {

    interface eth0

    state BACKUP

    virtual_router_id 1

    priority 100

    virtual_ipaddress {

        192.168.0.230

    }

    track_script {

        chk_haproxy

    }

}

vrrp_instance v2 {

    interface eth1

    state BACKUP

    virtual_router_id 2

    priority 100

    virtual_ipaddress {

        10.1.0.30

    }

    track_script {

        chk_haproxy

    }

}
--
Lei Zhang

Blog: http://jeffrey4l.github.com
twitter/weibo: @jeffrey4l
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