Here's the cache config file. Note that JotmTxMgrLookup is a custom TransactionManagerLookup implementation that creates a Jotm instance and returns a reference to its TransactionManager. <?xml version="1.0" encoding="UTF-8"?> <!-- ===================================================================== --> <!-- --> <!-- Sample TreeCache Service Configuration --> <!-- --> <!-- ===================================================================== --> <!-- ==================================================================== --> <!-- Defines TreeCache configuration --> <!-- ==================================================================== --> jboss:service=Naming jboss:service=TransactionManager <!-- Configure the TransactionManager --> JotmTxMgrLookup <!--Optimistic--> <!-- Isolation level : SERIALIZABLE REPEATABLE_READ (default) READ_COMMITTED READ_UNCOMMITTED NONE --> REPEATABLE_READ <!-- Valid modes are LOCAL REPL_ASYNC REPL_SYNC INVALIDATION_ASYNC INVALIDATION_SYNC --> REPL_SYNC <!-- Just used for async repl: use a replication queue --> false <!-- Replication interval for replication queue (in ms) --> 0 <!-- Max number of elements which trigger replication --> 0 <!-- Name of cluster. Needs to be the same for all TreeCache nodes in a cluster in order to find each other. This will be over-written in kernel service. --> TestCluster <!-- Specifies whether each interceptor should have an associated mbean registered. Interceptor mbeans are used to capture statistics and display them in JMX. This setting enables or disables all such interceptor mbeans. --> true <!-- JGroups protocol stack properties. --> <TCP start_port="8800" loopback="true" recv_buf_size="20000000" send_buf_size="640000" discard_incompatible_packets="true" max_bundle_size="64000" max_bundle_timeout="30" use_incoming_packet_handler="true" use_outgoing_packet_handler="false" down_thread="false" up_thread="false" enable_bundling="false" use_send_queues="false" sock_conn_timeout="300" skip_suspected_members="true"/> <TCPPING timeout="3000" initial_hosts="127.0.0.1[8800]" port_range="1" num_initial_members="2"/> <MERGE2 max_interval="100000" min_interval="20000"/> <FD_SOCK/> <FD timeout="10000" max_tries="5" shun="true"/> <VERIFY_SUSPECT timeout="1500" /> <pbcast.NAKACK max_xmit_size="60000" use_mcast_xmit="false" gc_lag="0" retransmit_timeout="300,600,1200,2400,4800" discard_delivered_msgs="true"/> <pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000" max_bytes="400000"/> <pbcast.GMS print_local_addr="true" join_timeout="3000" join_retry_timeout="2000" shun="false" view_bundling="true"/> <FRAG2 frag_size="60000" /> <pbcast.STREAMING_STATE_TRANSFER use_reading_thread="true"/> <!-- <pbcast.STATE_TRANSFER/> --> <pbcast.FLUSH/> <!-- Whether or not to fetch state on joining a cluster NOTE this used to be called FetchStateOnStartup and has been renamed to be more descriptive. --> true <!-- 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 --> 15000 <!-- Number of milliseconds to wait until all responses for a synchronous call have been received. --> 15000 <!-- Max number of milliseconds to wait for a lock acquisition --> 10000 <!-- Indicate whether to use region based marshalling or not. Set this to true if you are running under a scoped class loader, e.g., inside an application server. Default is "false". --> true View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4132291#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...