<?xml version = '1.0' encoding = 'UTF-8'?>

<memcache>
    <default-datacenter>center1</default-datacenter>
    <datacenter name="center1" >
        <cluster name="SSN_CACHE">
            <heartbeat-second>2</heartbeat-second>
            <pool-size>16</pool-size>
            <address master="127.0.0.1:11211"/>
        </cluster>
    </datacenter>
</memcache>