relay3.xml

<!--
    TCP based stack, with flow control and message bundling. This is usually used when IP
    multicasting cannot be used in a network, e.g. because it is disabled (routers discard multicast).
    Note that TCP.bind_addr and TCPPING.initial_hosts should be set, possibly via system properties, e.g.
    -Djgroups.bind_addr=192.168.5.2 and -Djgroups.tcpping.initial_hosts=192.168.5.2[7800]
    author: Bela Ban
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns="urn:org:jgroups"
        xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/jgroups.xsd">
    <TCP
            bind_addr="localhost"
            bind_port="7800"
            recv_buf_size="${tcp.recv_buf_size:130k}"
            send_buf_size="${tcp.send_buf_size:130k}"
            max_bundle_size="64K"
            sock_conn_timeout="300"

            thread_pool.min_threads="0"
            thread_pool.max_threads="20"
            thread_pool.keep_alive_time="30000"/>

    <MPING />
    <MERGE3  min_interval="10000"
             max_interval="30000"/>
    <FD_SOCK/>
    <FD_ALL timeout="20000" interval="5000" />
    <VERIFY_SUSPECT timeout="1500"  />
    <pbcast.NAKACK2 use_mcast_xmit="false"
                    discard_delivered_msgs="true"/>
    <UNICAST3 />
    <pbcast.STABLE desired_avg_gossip="50000"
                   max_bytes="4M"/>
    <pbcast.GMS print_local_addr="true" join_timeout="2000"/>
    <MFC max_credits="2M"
         min_threshold="0.4"/>
    <FRAG2 frag_size="60K"  />
    <relay3.RELAY3 active="true"
                   server_address="localhost"
                   server_port="50051"/>
</config>