I'm trying to use the JBoss Cache in Tomcat 5.0.x but I see zero cache HIT count in hibernate statistics ... the Cache MISS and PUT count keeps on increasing.
I'm sure I execute similiar queries and load same objects again and again without any updates or modifications. But hibernate seems to always have cache miss - never have cache hit.
<?xml version="1.0" encoding="UTF-8"?>
<server>
<classpath codebase="./lib" archives="jboss-cache.jar, jgroups.jar" />
<mbean code="org.jboss.cache.TreeCache" name="jboss.cache:service=TreeCache">
<depends>jboss:service=Naming</depends>
<depends>jboss:service=TransactionManager</depends>
<!--
Configure the TransactionManager - No matter since Hibernate will plug in an "adapter" to its own TransactionManagerLookup strategy here
-->
<attribute name="TransactionManagerLookupClass">org.jboss.cache.DummyTransactionManagerLookup</attribute>
<!--
Node locking scheme:
OPTIMISTIC
PESSIMISTIC (default)
-->
<attribute name="NodeLockingScheme">OPTIMISTIC</attribute>
<!--
Note that this attribute is IGNORED if your NodeLockingScheme above is OPTIMISTIC.
Isolation level : SERIALIZABLE
REPEATABLE_READ (default)
READ_COMMITTED
READ_UNCOMMITTED
NONE
-->
<attribute name="IsolationLevel">REPEATABLE_READ</attribute>
<!--
Valid modes are LOCAL
REPL_ASYNC
REPL_SYNC
INVALIDATION_ASYNC
INVALIDATION_SYNC
-->
<attribute name="CacheMode">LOCAL</attribute>
<!--
Just used for async repl: use a replication queue
-->
<attribute name="UseReplQueue">false</attribute>
<!--
Replication interval for replication queue (in ms)
-->
<attribute name="ReplQueueInterval">0</attribute>
<!--
Max number of elements which trigger replication
-->
<attribute name="ReplQueueMaxElements">0</attribute>
<!-- Name of cluster. Needs to be the same for all clusters, in order
to find each other
-->
<attribute name="ClusterName">TreeCache-Cluster</attribute>
<!-- JGroups protocol stack properties. Can also be a URL,
e.g. file:/home/bela/default.xml
<attribute name="ClusterProperties"></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="228.1.2.3" bind_addr="127.0.0.1" mcast_port="48866" ip_ttl="64" 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" />-->
<FD_SOCK />
<VERIFY_SUSPECT timeout="1500" up_thread="false" down_thread="false" />
<pbcast.NAKACK gc_lag="50" retransmit_timeout="600,1200,2400,4800" max_xmit_size="8192" 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="true" down_thread="true" />
</config>
</attribute>
<!--
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.
-->
<attribute name="FetchInMemoryState">false</attribute>
<!--
Number of milliseconds to wait until all responses for a
synchronous call have been received.
-->
<attribute name="SyncReplTimeout">20000</attribute>
<!-- Max number of milliseconds to wait for a lock acquisition -->
<attribute name="LockAcquisitionTimeout">15000</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">20000</attribute>
<!--
Indicate whether to use 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".
-->
<attribute name="UseMarshalling">false</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>
<!-- This is the interval (in seconds) to process the node events and also to perform sweeping for the size limit and age-out nodes. -->
<attribute name="wakeUpIntervalSeconds">5</attribute>
<!-- Cache wide default -->
<region name="/_default_">
<attribute name="maxNodes">5000</attribute>
<attribute name="timeToLiveSeconds">1000</attribute>
<!-- <attribute name="maxAgeSeconds">1000</attribute> -->
</region>
</config>
</attribute>
</mbean>
</server>
imsite.hibernate.transaction.factory_class=org.hibernate.transaction.JDBCTransactionFactory
imsite.hibernate.connection.provider_class=com.xxx.hibernate.MyHibernateConnectionProvider
imsite.hibernate.dialect=org.hibernate.dialect.MySQLDialect
imsite.hibernate.show_sql=false
imsite.hibernate.use_outer_join=true
imsite.hibernate.use_sql_comments=false
imsite.hibernate.generate_statistics=true
imsite.hibernate.cache.use_minimal_puts=true
imsite.hibernate.cache.use_second_level_cache=true
imsite.hibernate.cache.use_query_cache=true
imsite.hibernate.cache.provider_class=org.hibernate.cache.TreeCacheProvider
Some hibernate logs at initialization.
I tried removing the <attribute name="TransactionManagerLookupClass">org.jboss.cache.DummyTransactionManagerLookup</attribute> from treecache.xml but got following exception:
JBossCache DEBUG: Creating transaction for thread Thread[http-8080-Processor23,5,main]
JBossCache DEBUG: There was a problem handling this request
java.lang.Exception: Failed to create local transaction; TransactionManager is null
at org.jboss.cache.interceptors.TxInterceptor.createLocalTx(TxInterceptor.java:861)
at org.jboss.cache.interceptors.TxInterceptor.handleNonTxMethod(TxInterceptor.java:313)
at org.jboss.cache.interceptors.TxInterceptor.invoke(TxInterceptor.java:136)
at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:67)
at org.jboss.cache.interceptors.CacheMgmtInterceptor.invoke(CacheMgmtInterceptor.java:133)
at org.jboss.cache.TreeCache.invokeMethod(TreeCache.java:4804)
at org.jboss.cache.TreeCache.get(TreeCache.java:3040)
at org.jboss.cache.TreeCache.get(TreeCache.java:3021)
at org.hibernate.cache.TreeCache.read(TreeCache.java:54)
at org.hibernate.cache.TreeCache.get(TreeCache.java:45)
at org.hibernate.cache.StandardQueryCache.get(StandardQueryCache.java:96)
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