Hello. I am experiencing really strange problem here. When I start jboss, some entites are pre-loaded into cache. Then, if I load more and more entities in there, suddenly cache become empty and start all over - this causes dbs traffic of course. On my local pc, if there are some nodes in the cache (sometimes 275, sometimes 900 it depends which operation I run), then cache gets suddenly clean, and when operation finish, the number of nodes in cache is 10 - and its only directories. On production server this process repeats and repeats. Could somebody help me to keep the nodes inside the cache bit longer?? Here is my configuration <?xml version="1.0" encoding="UTF-8"?> | <server> | | <!-- ==================================================================== --> | <!-- Defines TreeCache configuration --> | <!-- ==================================================================== --> | <mbean code="org.jboss.cache.TreeCache" name="jboss.cache:service=EJB3EntityTreeCache"> | <depends>jboss:service=Naming</depends> | <depends>jboss:service=TransactionManager</depends> | | <!-- Configure the TransactionManager --> | <attribute name="TransactionManagerLookupClass">org.jboss.cache.JBossTransactionManagerLookup</attribute> | | <!-- | Node locking level : SERIALIZABLE | REPEATABLE_READ (default) | READ_COMMITTED | READ_UNCOMMITTED | NONE | --> | <attribute name="IsolationLevel">REPEATABLE_READ</attribute> | | <!-- Valid modes are LOCAL | REPL_ASYNC | REPL_SYNC | --> | <attribute name="CacheMode">REPL_SYNC</attribute> | | <!-- Name of cluster. Needs to be the same for all clusters, in order | to find each other --> | <attribute name="ClusterName">EJB3-entity-cache</attribute> | | <attribute name="ClusterConfig"> | <config> | <!-- UDP: if you have a multihomed machine, | set the bind_addr attribute to the appropriate NIC IP address | --> | <!-- UDP: On Windows machines, because of the media sense feature | being broken with multicast (even after disabling media sense) | set the loopback attribute to true | --> | <UDP mcast_addr="${jboss.partition.udpGroup:228.1.2.3}" mcast_port="43333" ip_ttl="2" ip_mcast="true" | mcast_send_buf_size="150000" mcast_recv_buf_size="80000" ucast_send_buf_size="150000" | ucast_recv_buf_size="80000" loopback="false" /> | <PING timeout="2000" num_initial_members="3" up_thread="false" down_thread="false" /> | <MERGE2 min_interval="10000" max_interval="20000" /> | <FD shun="true" up_thread="true" down_thread="true" /> | <VERIFY_SUSPECT timeout="1500" up_thread="false" down_thread="false" /> | <pbcast.NAKACK gc_lag="50" max_xmit_size="8192" retransmit_timeout="600,1200,2400,4800" up_thread="false" | down_thread="false" /> | <UNICAST timeout="600,1200,2400" window_size="100" min_threshold="10" down_thread="false" /> | <pbcast.STABLE desired_avg_gossip="20000" up_thread="false" down_thread="false" /> | <FRAG frag_size="8192" down_thread="false" up_thread="false" /> | <pbcast.GMS join_timeout="5000" join_retry_timeout="2000" shun="true" print_local_addr="true" /> | <pbcast.STATE_TRANSFER up_thread="false" down_thread="false" /> | </config> | </attribute> | | <!-- The max amount of time (in milliseconds) we wait until the | initial state (ie. the contents of the cache) are retrieved from | existing members in a clustered environment | --> | <attribute name="InitialStateRetrievalTimeout">5000</attribute> | | <!-- Number of milliseconds to wait until all responses for a | synchronous call have been received. | --> | <attribute name="SyncReplTimeout">10000</attribute> | | <!-- Max number of milliseconds to wait for a lock acquisition --> | <attribute name="LockAcquisitionTimeout">15000</attribute> | | <!-- Name of the eviction policy class. --> | <attribute name="EvictionPolicyClass">org.jboss.cache.eviction.LRUPolicy</attribute> | | <!-- Specific eviction policy configurations. This is LRU --> | <attribute name="EvictionPolicyConfig"> | <config> | <attribute name="wakeUpIntervalSeconds">5</attribute> | <!-- Cache wide default --> | <region name="/_default_"> | <attribute name="maxNodes">5000</attribute> | <attribute name="timeToLiveSeconds">1000</attribute> | </region> | <region name="/aRegion"> | <attribute name="maxNodes">15000</attribute> | <attribute name="timeToLiveSeconds">1000</attribute> | </region> | </config> | </attribute> | | </mbean> | | </server> | Many thanks for your help. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4206004#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...