simple haproxy config for solr with multiple nodes

haproxy.cfg

# this config needs haproxy-1.1.28 or haproxy-1.2.1

global
        log 127.0.0.1   local0
        log 127.0.0.1   local1 notice
        #log loghost    local0 info
        maxconn 4096
        #chroot /usr/share/haproxy
        user haproxy
        group haproxy
        daemon
        #debug
        #quiet

defaults
        log     global
        mode    http
        option  httplog
        option  dontlognull
        retries 3
        option redispatch
        maxconn 2000
        contimeout      5000
        clitimeout      50000
        srvtimeout      50000
        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

listen  query-solrdev QUERYIP:80 # here we put the url we are using for the query url
        mode http
        balance roundrobin
        cookie  JSESSIONID prefix
        option  httpclose               # disable keep-alive
        option  forwardfor
        option  httpchk HEAD /solr/admin/ping HTTP/1.0
        server  solrdev1 192.168.1.1:8080 cookie A check
        server  solrdev2 192.168.1.2:8080 cookie B check
        server  solrdev3 192.168.1.3:8080 cookie C check

listen  master-solrdev FRONTMASTERIP:80 # here we put the url we are using for the master url (index push)
        mode http
        balance roundrobin
        cookie  JSESSIONID prefix
        option  httpclose               # disable keep-alive
        option  forwardfor
        #only one active at the same time
        option  httpchk HEAD /solr/master/ping HTTP/1.0   
        server  solrdev1 192.168.1.1:8080 cookie A check
        server  solrdev2 192.168.1.2:8080 cookie B check
        server  solrdev3 192.168.1.3:8080 cookie C check

        rspidel ^Set-cookie:\ IP=       # do not let this cookie tell our internal IP address