<strong>CACHE IN MEMORY</strong>
<strong># If you want to disable memory caching, just uncomment this line.</strong>
<strong>cache.memory=false</strong>
<strong>CACHE KEY </strong>
<strong># This is the key that will be used to store the cache in the application</strong>
<strong>and session scope.</strong>
<strong># If you want to set the cache key to anything other than the default</strong>
<strong>uncomment this line and change the cache.key</strong>
<strong># cache.key=__oscache_cache</strong>
<strong>USE HOST DOMAIN NAME IN KEY</strong>
<strong># Servers for multiple host domains may wish to add host name info to</strong>
<strong>the generation of the key. If this is true, then uncomment the</strong>
<strong>following line.</strong>
<strong># cache.use.host.domain.in.key=true</strong>
<strong>CACHE LISTENERS</strong>
<strong># These hook OSCache events and perform various actions such as logging</strong>
<strong>cache hits and misses, or broadcasting to other cache instances across a cluster.</strong>
<strong>See the documentation for further information.</strong>
<strong># cache.event.listeners=com.opensymphony.oscache.plugins.clustersupport.JMSBroadcastingListener, \</strong>
<strong>com.opensymphony.oscache.extra.CacheEntryEventListenerImpl, \</strong>
<strong>com.opensymphony.oscache.extra.CacheMapAccessEventListenerImpl, \</strong>
<strong>com.opensymphony.oscache.extra.ScopeEventListenerImpl</strong>
<strong>CACHE PERSISTENCE CLASS</strong>
<strong># Specify the class to use for persistence. If you use the supplied DiskPersistenceListener,</strong>
<strong>don't forget to supply the cache.path property to specify the location of the cache</strong>
<strong>directory.</strong>
<strong># If a persistence class is not specified, OSCache will use memory caching only.</strong>
<strong>#cache.persistence.class=com.opensymphony.oscache.plugins.diskpersistence.HashDiskPersistenceListener</strong>
cache.persistence.class=com.opensymphony.oscache.plugins.diskpersistence.HashDiskPersistenceListener
<strong>CACHE OVERFLOW PERSISTENCE</strong>
<strong>Use persistent cache in overflow or not. The default value is false, which means</strong>
<strong>the persistent cache will be used at all times for every entry. true is the recommended setting.</strong>
<strong>#cache.persistence.overflow.only=false</strong>
<strong>CACHE DIRECTORY</strong>
<strong># This is the directory on disk where caches will be stored by the DiskPersistenceListener.</strong>
<strong>it will be created if it doesn't already exist. Remember that OSCache must have</strong>
<strong>write permission to this directory.</strong>
<strong># Note: for Windows machines, this needs \ to be escaped</strong>
<strong>ie Windows:</strong>
<strong>cache.path=c:\\myapp\\cache</strong>
<strong>or *ix:</strong>
<strong>cache.path=/opt/myapp/cache</strong>
<strong>cache.path=F:\\jboss-3.2.1\\server\\default\\deploy\\weihai.war\\powercache</strong>
<strong>CACHE ALGORITHM</strong>
<strong># Default cache algorithm to use. Note that in order to use an algorithm</strong>
<strong>the cache size must also be specified. If the cache size is not specified,</strong>
<strong>the cache algorithm will be Unlimited cache.</strong>
<strong>cache.algorithm=com.opensymphony.oscache.base.algorithm.LRUCache</strong>
<strong>cache.algorithm=com.opensymphony.oscache.base.algorithm.FIFOCache</strong>
<strong>cache.algorithm=com.opensymphony.oscache.base.algorithm.UnlimitedCache</strong>
<strong>THREAD BLOCKING BEHAVIOR</strong>
<strong># When a request is made for a stale cache entry, it is possible that another thread is already</strong>
<strong>in the process of rebuilding that entry. This setting specifies how OSCache handles the</strong>
<strong>subsequent 'non-building' threads. The default behaviour (cache.blocking=false) is to serve</strong>
<strong>the old content to subsequent threads until the cache entry has been updated. This provides</strong>
<strong>the best performance (at the cost of serving slightly stale data). When blocking is enabled,</strong>
<strong>threads will instead block until the new cache entry is ready to be served. Once the new entry</strong>
<strong>is put in the cache the blocked threads will be restarted and given the new entry.</strong>
<strong>Note that even if blocking is disabled, when there is no stale data available to be served</strong>
<strong>threads will block until the data is added to the cache by the thread that is responsible</strong>
<strong>for building the data.</strong>
cache.blocking=true
<strong>CACHE SIZE</strong>
<strong># Default cache size in number of items. If a size is specified but not</strong>
<strong>an algorithm, the cache algorithm used will be LRUCache.</strong>
cache.capacity=4000
<strong>CACHE UNLIMITED DISK ??????????????????1000??????????1000???LRU?????????????????</strong>
<strong>Use unlimited disk cache or not. The default value is false, which means</strong>
<strong>the disk cache will be limited in size to the value specified by cache.capacity.</strong>
cache.unlimited.disk=true
<strong>JMS CLUSTER PROPERTIES</strong>
<strong># Configuration properties for JMS clustering. See the clustering documentation</strong>
<strong>for more information on these settings.</strong>
<strong>#cache.cluster.jms.topic.factory=java:comp/env/jms/TopicConnectionFactory</strong>
#cache.cluster.jms.topic.name=java:comp/env/jms/OSCacheTopic
#cache.cluster.jms.node.name=node1
<strong>JAVAGROUPS CLUSTER PROPERTIES</strong>
<strong># Configuration properites for the JavaGroups clustering. Only one of these</strong>
<strong>should be specified. Default values (as shown below) will be used if niether</strong>
<strong>property is set. See the clustering documentation and the JavaGroups project</strong>
<strong>(www.javagroups.com) for more information on these settings.</strong>
<strong>#cache.cluster.properties=UDP(mcast_addr=231.12.21.132;mcast_port=45566;ip_ttl=32;\</strong>
#mcast_send_buf_size=150000;mcast_recv_buf_size=80000):\
#PING(timeout=2000;num_initial_members=3):\
#MERGE2(min_interval=5000;max_interval=10000):\
#FD_SOCK:VERIFY_SUSPECT(timeout=1500):\
#pbcast.NAKACK(gc_lag=50;retransmit_timeout=300,600,1200,2400,4800;max_xmit_size=8192):\
#UNICAST(timeout=300,600,1200,2400):\
#pbcast.STABLE(desired_avg_gossip=20000):\
#FRAG(frag_size=8096;down_thread=false;up_thread=false):\
#pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;shun=false;print_local_addr=true)
#cache.cluster.multicast.ip=231.12.21.132
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