• Openstack Dashboard not working while Ha-Proxy shows Memcached service's availabilty down.
• My setup involves 2 Ha-Proxy servers with Keepalived providing VIP, 2 Galera Clustered [MariaDB]MYSQLDB's, 2 Controllers [AMQP,Keystone,Glance,Cinder,Nova-Controller,Dashboard: Services Installed], 2 Ceph Nodes configured so far.
• Yet to configure COMPUTE & NEUTRON-Network Nodes.
• I was successfully able to create a GLANCE Image & CINDER Volume: both of them use CEPH as backend for storage
• As I access dasboard with admin credentials, Dashboard displays following message: > Something went wrong! An unexpected > error has occurred. Try refreshing the > page. If that doesn't help, contact > your local administrator.
• The apache error log is pasted in this http://pastebin.com/CzwtAk6g (Link)
• Memcached HA Proxy Configuration is as follows:

listen memcached 192.168.1.32:11211
         balance source
         option tcpka
         option httpchk
         maxconn 10000
         server node1 192.168.1.35:11211 check inter 2000 rise 2 fall 5
         server node2 192.168.1.36:11211 check inter 2000 rise 2 fall 5

where 192.168.1.32 is my Virtual IP provided by Keepalived, 192.168.1.35 & 192.168.1.36 are my 2 controllers IP Addresses, 11211 is memcached service port open/listening on both controllers.