Ehcache集群环境配置

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分布式缓存

XML JMS Cache HTML .net

Ehcache支持的分布式缓存支持有三种RMI，JGroups，JMS，这里介绍下MRI和JGrpups两种方式，Ehcache使用版本为1.5.0，关于ehcache的其他信息请参考http://ehcache.sourceforge.net/EhcacheUserGuide.html，关于jgroups的信息请参考http://www.jgroups.org/manual/html_single/index.html。

环境为两台机器 server1 ip：192.168.2.154，server2 ip：192.168.2.23

1. RMI方式：

rmi的方式配置要点（下面均是server1上的配置，server2上的只需要把ip兑换即可）

a. 配置PeerProvider：

Xml代码
<cacheManagerPeerProviderFactory class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"
properties="peerDiscovery=manual,rmiUrls=//192.168.2.23:40001/userCache|//192.168.2.23:40001/resourceCache" />

<cacheManagerPeerProviderFactory class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"
properties="peerDiscovery=manual,rmiUrls=//192.168.2.23:40001/userCache|//192.168.2.23:40001/resourceCache" />配置中通过手动方式同步sever2中的userCache和resourceCache。

b. 配置CacheManagerPeerListener：

Xml代码
<cacheManagerPeerListenerFactory class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"
properties="hostName=192.168.2.154, port=40001,socketTimeoutMillis=2000" />

<cacheManagerPeerListenerFactory class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"
properties="hostName=192.168.2.154, port=40001,socketTimeoutMillis=2000" /> 配置中server1监听本机40001端口。

c. 在每一个cache中添加cacheEventListener，例子如下：

Xml代码
<cache name="userCache" maxElementsInMemory="10000" eternal="true" overflowToDisk="true" timeToIdleSeconds="0" timeToLiveSeconds="0" diskPersistent="false" diskExpiryThreadIntervalSeconds="120">
        <cacheEventListenerFactory class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"     properties="replicateAsynchronously=true, replicatePuts=true, replicateUpdates=true,replicateUpdatesViaCopy= false, replicateRemovals= true " />
</cache>

<cache name="userCache" maxElementsInMemory="10000" eternal="true" overflowToDisk="true" timeToIdleSeconds="0" timeToLiveSeconds="0" diskPersistent="false" diskExpiryThreadIntervalSeconds="120">
<cacheEventListenerFactory class="net.sf.ehcache.distribution.RMICacheReplicatorFactory" properties="replicateAsynchronously=true, replicatePuts=true, replicateUpdates=true,replicateUpdatesViaCopy= false, replicateRemovals= true " />
</cache>
2. JGroups方式：

ehcache 1.5.0之后版本支持的一种方式，配置起来比较简单，要点：

a. 配置PeerProvider，使用tcp的方式，例子如下：

Xml代码
<cacheManagerPeerProviderFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProviderFactory"
        properties="connect=TCP(start_port=7800):
        TCPPING(initial_hosts=192.168.2.154[7800],192.168.2.23[7800];port_range=10;timeout=3000;
        num_initial_members=3;up_thread=true;down_thread=true):
        VERIFY_SUSPECT(timeout=1500;down_thread=false;up_thread=false):
        pbcast.NAKACK(down_thread=true;up_thread=true;gc_lag=100;retransmit_timeout=3000):
        pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;shun=false;
        print_local_addr=false;down_thread=true;up_thread=true)"
        propertySeparator="::" />

<cacheManagerPeerProviderFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProviderFactory"
properties="connect=TCP(start_port=7800):
        TCPPING(initial_hosts=192.168.2.154[7800],192.168.2.23[7800];port_range=10;timeout=3000;
        num_initial_members=3;up_thread=true;down_thread=true):
        VERIFY_SUSPECT(timeout=1500;down_thread=false;up_thread=false):
        pbcast.NAKACK(down_thread=true;up_thread=true;gc_lag=100;retransmit_timeout=3000):
        pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;shun=false;
        print_local_addr=false;down_thread=true;up_thread=true)"
        propertySeparator="::" /> b.为每个cache添加cacheEventListener：

Xml代码
<cache name="userCache" maxElementsInMemory="10000" eternal="true"
        overflowToDisk="true" timeToIdleSeconds="0" timeToLiveSeconds="0"
        diskPersistent="false" diskExpiryThreadIntervalSeconds="120">
        <cacheEventListenerFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
            properties="replicateAsynchronously=true, replicatePuts=true,
                replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true"/>
</cache>

<cache name="userCache" maxElementsInMemory="10000" eternal="true"
overflowToDisk="true" timeToIdleSeconds="0" timeToLiveSeconds="0"
diskPersistent="false" diskExpiryThreadIntervalSeconds="120">
<cacheEventListenerFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
properties="replicateAsynchronously=true, replicatePuts=true,
   replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true"/>
</cache> JGroup方式配置的两个server上的配置文件一样，若有多个server，在initial_hosts中将server ip加上即可。

一个完整的ehcache.xml文件：

Xml代码
<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="http://ehcache.sf.net/ehcache.xsd">
    <diskStore path="java.io.tmpdir" />

    <cacheManagerPeerProviderFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProviderFactory"
        properties="connect=TCP(start_port=7800):
        TCPPING(initial_hosts=192.168.2.154[7800],192.168.2.23[7800];port_range=10;timeout=3000;
        num_initial_members=3;up_thread=true;down_thread=true):
        VERIFY_SUSPECT(timeout=1500;down_thread=false;up_thread=false):
        pbcast.NAKACK(down_thread=true;up_thread=true;gc_lag=100;retransmit_timeout=3000):
        pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;shun=false;
        print_local_addr=false;down_thread=true;up_thread=true)"
        propertySeparator="::" />

    <defaultCache maxElementsInMemory="10000" eternal="true"
        overflowToDisk="true" timeToIdleSeconds="0" timeToLiveSeconds="0"
        diskPersistent="false" diskExpiryThreadIntervalSeconds="120">
        <cacheEventListenerFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
            properties="replicateAsynchronously=true, replicatePuts=true,
                replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true"/>
    </defaultCache>

    <cache name="velcroCache" maxElementsInMemory="10000" eternal="true"
        overflowToDisk="true" timeToIdleSeconds="0" timeToLiveSeconds="0"
        diskPersistent="false" diskExpiryThreadIntervalSeconds="120">
        <cacheEventListenerFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
            properties="replicateAsynchronously=true, replicatePuts=true,
                replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true"/>
    </cache>
    <cache name="userCache" maxElementsInMemory="10000" eternal="true"
        overflowToDisk="true" timeToIdleSeconds="0" timeToLiveSeconds="0"
        diskPersistent="false" diskExpiryThreadIntervalSeconds="120">
        <cacheEventListenerFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
            properties="replicateAsynchronously=true, replicatePuts=true,
                replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true"/>
    </cache>
    <cache name="resourceCache" maxElementsInMemory="10000"
        eternal="true" overflowToDisk="true" timeToIdleSeconds="0"
        timeToLiveSeconds="0" diskPersistent="false"
        diskExpiryThreadIntervalSeconds="120">
        <cacheEventListenerFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
            properties="replicateAsynchronously=true, replicatePuts=true,
                replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true"/>
    </cache>
</ehcache>

<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://ehcache.sf.net/ehcache.xsd">
<diskStore path="java.io.tmpdir" />

<cacheManagerPeerProviderFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProviderFactory"
properties="connect=TCP(start_port=7800):
        TCPPING(initial_hosts=192.168.2.154[7800],192.168.2.23[7800];port_range=10;timeout=3000;
        num_initial_members=3;up_thread=true;down_thread=true):
        VERIFY_SUSPECT(timeout=1500;down_thread=false;up_thread=false):
        pbcast.NAKACK(down_thread=true;up_thread=true;gc_lag=100;retransmit_timeout=3000):
        pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;shun=false;
        print_local_addr=false;down_thread=true;up_thread=true)"
        propertySeparator="::" />

<defaultCache maxElementsInMemory="10000" eternal="true"
overflowToDisk="true" timeToIdleSeconds="0" timeToLiveSeconds="0"
diskPersistent="false" diskExpiryThreadIntervalSeconds="120">
<cacheEventListenerFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
properties="replicateAsynchronously=true, replicatePuts=true,
   replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true"/>
</defaultCache>

<cache name="velcroCache" maxElementsInMemory="10000" eternal="true"
overflowToDisk="true" timeToIdleSeconds="0" timeToLiveSeconds="0"
diskPersistent="false" diskExpiryThreadIntervalSeconds="120">
<cacheEventListenerFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
properties="replicateAsynchronously=true, replicatePuts=true,
   replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true"/>
</cache>
<cache name="userCache" maxElementsInMemory="10000" eternal="true"
overflowToDisk="true" timeToIdleSeconds="0" timeToLiveSeconds="0"
diskPersistent="false" diskExpiryThreadIntervalSeconds="120">
<cacheEventListenerFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
properties="replicateAsynchronously=true, replicatePuts=true,
   replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true"/>
</cache>
<cache name="resourceCache" maxElementsInMemory="10000"
eternal="true" overflowToDisk="true" timeToIdleSeconds="0"
timeToLiveSeconds="0" diskPersistent="false"
diskExpiryThreadIntervalSeconds="120">
<cacheEventListenerFactory class="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
properties="replicateAsynchronously=true, replicatePuts=true,
   replicateUpdates=true, replicateUpdatesViaCopy=false, replicateRemovals=true"/>
</cache>
</ehcache>

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