[rabbitmq-discuss] HAProxy does not work with Rabbitmq?

[sameekmishra]

Hi 

I have configured HA proxy and keepalived for rabbbitmq server.
i have install  Debian squeeze 6.04 operating system with rabbbitmq 2.5.0
and enlarge 14.b.2.1,with cluster and mirror queue.
i have check cluster status both end it got:

rabbitmqctl cluster_status
Cluster status of node rabbit at server03 ...
[{nodes,[{disc,[rabbit at server03,rabbit at server05]}]},
 {running_nodes,[rabbit at server05,rabbit at server03]}]
...done.

which means that cluster are correctly configured,also i have checked the
mirror with publish a message on other node and got from other node means
it's worked.i have read the following document for Setting Up A HAProxy
Failover
Cluster<http://www.zimbio.com/Linux/articles/YgBDA7b_kmR/Setting+Up+HAProxy+Failover+Cluster>
and also got haproxy configuration from this post
<http://www.joshdevins.net/2010/04/16/rabbitmq-ha-testing-with-haproxy/>.

including both document i have tried the failover with following
configuration:

node-1 server03 rabbit at server03  192.168.1.153
node-2 server05 rabbit at server05  192.168.1.155

assume virtul Ip: 192.168.1.199

/etc/haproxy/haproxy.conf
-------------------------
global
 log     127.0.0.1 alert
 log     127.0.0.1 alert debug

defaults
 log        global
 mode       http
 option     dontlognull
 option     redispatch
 retries    3
 contimeout 5000
 clitimeout 50000
 srvtimeout 50000

listen rabbitmq *:5672
 mode    tcp
 stats   enable
 balance roundrobin
 option  forwardfor
 option  tcpka
 server  server03 192.168.1.153:5672 check inter 5000 downinter 500    
 server  server05 192.168.1.155:5672 check inter 5000 backup

listen webfarm 192.168.1.199:80
       mode http
       stats enable
       stats auth someuser:sam
       balance roundrobin
       cookie JSESSIONID prefix
       option httpclose
       option forwardfor
       option httpchk HEAD /check.txt HTTP/1.0
       server server03 192.168.1.153:5672 cookie A check
       server server05 192.168.1.155:5672 cookie B check


	option	httpclose		# disable keep-alive
	option  checkcache		# block response if set-cookie & cacheable

	rspidel ^Set-cookie:\ IP=	# do not let this cookie tell our internal IP
address
	
	#errorloc	502	http://192.168.114.58/error502.html
	#errorfile	503	/etc/haproxy/errors/503.http
	errorfile	400	/etc/haproxy/errors/400.http
	errorfile	403	/etc/haproxy/errors/403.http
	errorfile	408	/etc/haproxy/errors/408.http
	errorfile	500	/etc/haproxy/errors/500.http
	errorfile	502	/etc/haproxy/errors/502.http
	errorfile	503	/etc/haproxy/errors/503.http
	errorfile	504	/etc/haproxy/errors/504.http

same haproxy configuration on node2 as well.

 /etc/keepalived/keepalived.conf
---------------------------------
vrrp_script chk_haproxy {           # Requires keepalived-1.1.13
        script "killall -0 haproxy"     # cheaper than pidof
        interval 2                      # check every 2 seconds
        weight 2                        # add 2 points of prio if OK
}

vrrp_instance VI_1 {
        interface eth0
        state MASTER
        virtual_router_id 51
        priority 101                    # 101 on master, 100 on backup
        virtual_ipaddress {
            192.168.1.199
        }
        track_script {
            chk_haproxy
        }
}

only on difference with node2 is priority 100 .after configuation i have
start haproxy and keepalived,start without any error.i have try to ping
virtual ip with other node it got successful result,also i have publish
message using 192.168.1.199 ,it publish and i consume message from other
node,but when i try to rabbitmqctl stop_app of node1(stop rabbitmq server
which is running on node1) then i try to publish with virtual IP i got
connetion refuesed exception,
means when failover not work for me it does not switch to other node2.
please help me,i can't trace the problem.

Thanks

  
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