JGroups 也提供了基于 TCP 的单播 ( Unicast ) 和基于 UDP 的多播 ( Multicast ) ,对应 RMI 的手工配置和自动发现。使用单播方式需要指定其它节点的主机地址和端口,下面是两个节点,并使用了单播方式的配置:
<!-- 使用单播方式配置 -->
<cacheManagerPeerProviderFactory
class="net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProviderFactory"
properties="connect=TCP(bind_addr=127.0.0.1;bind_port=4000):
TCPPING(initial_hosts=127.0.0.1[4000],127.0.0.1[5000];port_range=1;timeout=5000;num_initial_members=2):
MERGE2(min_interval=3000;max_interval=5000):
FD_ALL(interval=5000;timeout=20000):
FD(timeout=5000;max_tries=48;):
VERIFY_SUSPECT(timeout=1500):
pbcast.NAKACK(retransmit_timeout=100,200,300,600,1200,2400,4800;discard_delivered_msgs=true):
pbcast.STABLE(stability_delay=1000;desired_avg_gossip=20000;max_bytes=0):
pbcast.GMS(print_local_addr=true;join_timeout=5000)"
propertySeparator="::" />
使用多播方式配置如下:
<cacheManagerPeerProviderFactory
class="net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProviderFactory"
properties="connect=UDP(mcast_addr=224.1.1.1;mcast_port=45678;ip_ttl=32;mcast_send_buf_size=120000;mcast_recv_buf_size=80000):
PING(timeout=2000;num_initial_members=2):
MERGE2(min_interval=5000;max_interval=10000):
FD_SOCK:VERIFY_SUSPECT(timeout=1500):
pbcast.NAKACK(retransmit_timeout=3000):
UNICAST(timeout=5000):
pbcast.STABLE(desired_avg_gossip=20000):
FRAG:
pbcast.GMS(join_timeout=5000;print_local_addr=true)"
propertySeparator="::" />
cache缓存节点配置
<!-- demo缓存 -->
<cache name="demoCache" maxElementsInMemory="1000" eternal="false"
timeToIdleSeconds="120" timeToLiveSeconds="120" overflowToDisk="true"
diskSpoolBufferSizeMB="30" maxElementsOnDisk="10000000"
diskPersistent="false" diskExpiryThreadIntervalSeconds="120"
memoryStoreEvictionPolicy="LRU">
<cacheEventListenerFactory
class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
properties="replicateAsynchronously=true, replicatePuts=true,
replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true" />
<!-- 用于在初始化缓存,以及自动设置 -->
<bootstrapCacheLoaderFactory
class="net.sf.ehcache.distribution.jgroups.JGroupsBootstrapCacheLoaderFactory" />
</cache>
详情参考demo源码:
http://download.csdn.net/detail/tianwei7518/9231745
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-jgroupsreplication</artifactId>
<version>1.7</version>
</dependency>
参考文章: