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<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-3.6.xsd">

    <!-- JVM需配置禁止使用IPv6,JVM启动参数添加:-Djava.net.preferIPv4Stack=true,若使用Tomcat运行项目,则在catalina.sh文件中添加该启动参数:JAVA_OPTS -->
    <!--
        组播相关:
        1.组播IP地址范围:224.0.0.0~239.255.255.255,其中224开头的为保留地址,239开头的为实验用地址。这些地址不能随便使用,它们也是有权威部门(IANA)管理,类似于TCP,UDP的保留端口,建议使用时避开。
          224.0.0.0 基础地址,保留,不能被任何群组使用 
          224.0.0.1 全主机群组(all hosts group),指参加本IP组播的所有主机、路由器、网关(不是指整个互连网) 
          224.0.0.2 本子网上的路由器(all routers on a LAN) 
          224.0.0.4 DVMRP*路由器(DVMRP Routers) 
         224.0.0.5 本子网上的OSPF*路由器(all OSPF routers on a LAN) 
          224.0.0.6 本子网上被指定的OSPF路由器(all designated OSPF routers on a LAN) 
          224.0.1.1 网络时间协议(Network Time Protocol,NTP) 
          224.0.5.000-224.0.5.127 蜂窝式数字信息包数据发送主机组(CDPD Groups) 
          224.1.0.0-SNAPSHOT-224.1.255.255 基于流的协议组播主机组(Stream Protocol Multicast Groups) 
          224.2.0.0-224.2.255.255 多媒体会议呼叫(Multimedia Conference Calls)
    -->

    <UDP mcast_addr="${jgroups.udp.mcast_addr:238.9.9.9}"
         mcast_port="${jgroups.udp.mcast_port:18001}"
         ip_ttl="${jgroups.udp.ip_ttl:2}"
         tos="8"
         ucast_recv_buf_size="20M"
         ucast_send_buf_size="640K"
         mcast_recv_buf_size="25M"
         mcast_send_buf_size="640K"
         max_bundle_size="64k"
         max_bundle_timeout="30"
         enable_diagnostics="true"
         thread_naming_pattern="cl"

         timer_type="new"
         timer.min_threads="4"
         timer.max_threads="10"
         timer.keep_alive_time="3000"
         timer.queue_max_size="500"

         thread_pool.enabled="true"
         thread_pool.min_threads="2"
         thread_pool.max_threads="8"
         thread_pool.keep_alive_time="5000"
         thread_pool.queue_enabled="true"
         thread_pool.queue_max_size="10000"
         thread_pool.rejection_policy="discard"

         oob_thread_pool.enabled="true"
         oob_thread_pool.min_threads="1"
         oob_thread_pool.max_threads="8"
         oob_thread_pool.keep_alive_time="5000"
         oob_thread_pool.queue_enabled="false"
         oob_thread_pool.queue_max_size="100"
         oob_thread_pool.rejection_policy="Run" />

    <PING />
    <MERGE2 max_interval="30000" min_interval="10000" />

    <FD_SOCK />
    <FD_ALL />

    <VERIFY_SUSPECT timeout="1500"  />
    <BARRIER />
    <pbcast.NAKACK use_mcast_xmit="true"
                   retransmit_timeout="300,600,1200"
                   discard_delivered_msgs="true"/>

    <pbcast.STABLE stability_delay="1000"
                   desired_avg_gossip="50000"
                   max_bytes="4M"/>
    <pbcast.GMS print_local_addr="true"
                print_physical_addrs="true"
                join_timeout="3000"
                view_bundling="true"
                max_join_attempts="3"/>

    <UFC max_credits="2M" min_threshold="0.4"/>
    <MFC max_credits="2M" min_threshold="0.4"/>
    <FRAG2 frag_size="60K"  />
    <pbcast.STATE_TRANSFER />

</config>




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