Session replication only functions for [Enterprise Licenses|Enterprise License Enhancements].  The servers participating in the replication must have a file name "cluster.xml" in the same root location with CrushFTP.  Simply place the file there, and start CrushFTP.

Here is an example cluster.xml file for a server having the IP 192.168.1.20, and the secondary server having the IP 192.168.1.21.
{{{
<config xmlns="urn:org:jgroups" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/JGroups-3.3.xsd">
	<TCP bind_port="7800" bind_addr="192.168.1.20"/>
	<TCPPING initial_hosts="192.168.1.21[7000]" port_range="1"/>
	<MERGE2/><FD_SOCK/><FD/><VERIFY_SUSPECT/><pbcast.NAKACK2 use_mcast_xmit="false"/><UNICAST3/><pbcast.STABLE/><pbcast.GMS/><MFC/><FRAG2/><pbcast.STATE_TRANSFER/><pbcast.FLUSH timeout="0"/>
</config>
}}}

{{{
<config xmlns="urn:org:jgroups" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/JGroups-3.3.xsd">
	<TCP bind_port="7800" bind_addr="192.168.1.21"/>
	<TCPPING initial_hosts="192.168.1.20[7000]" port_range="1"/>
	<MERGE2/><FD_SOCK/><FD/><VERIFY_SUSPECT/><pbcast.NAKACK2 use_mcast_xmit="false"/><UNICAST3/><pbcast.STABLE/><pbcast.GMS/><MFC/><FRAG2/><pbcast.STATE_TRANSFER/><pbcast.FLUSH timeout="0"/>
</config>
}}}