[jboss-user] [JBossCache] - optimistic cache locking
Hi, im using jboss4.0.5.GA and if im not wrong it has hibernate 3.2 wich has optimistic
cache locking, how do I enable it?
For example my ejb3-cache-service.xml is
| <?xml version="1.0" encoding="UTF-8"?>
| <server>
| <mbean code="org.jboss.cache.TreeCache"
name="jboss.cache:service=EJB3EntityTreeCache">
| <depends>jboss:service=Naming</depends>
| <depends>jboss:service=TransactionManager</depends>
| <attribute
name="TransactionManagerLookupClass">org.jboss.cache.JBossTransactionManagerLookup</attribute>
| <attribute
name="IsolationLevel">REPEATABLE_READ</attribute>
| <attribute name="CacheMode">REPL_SYNC</attribute>
| <attribute name="ClusterName">EJB3-entity-cache</attribute>
| <attribute name="ClusterConfig">
| <config>
| <UDP mcast_addr="${jboss.partition.udpGroup:228.1.2.3}"
mcast_port="43333" ip_ttl="${jgroups.mcast.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_SOCK down_thread="false" up_thread="false"/>
| <FD shun="true" up_thread="false"
down_thread="false"
| timeout="20000" max_tries="5"/>
| <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>
| <attribute
name="InitialStateRetrievalTimeout">5000</attribute>
| <attribute name="SyncReplTimeout">10000</attribute>
| <attribute name="LockAcquisitionTimeout">15000</attribute>
| <attribute
name="EvictionPolicyClass">org.jboss.cache.eviction.LRUPolicy</attribute>
| <attribute name="EvictionPolicyConfig">
| <config>
| <attribute name="wakeUpIntervalSeconds">5</attribute>
| <region name="/_default_">
| <attribute name="maxNodes">5000</attribute>
| <attribute name="timeToLiveSeconds">1000</attribute>
| </region>
| </config>
| </attribute>
| </mbean>
| </server>
|
Which is using pessimistic cache locking, whats the parameter to change? ive searched lots
of manuals and configuration tutorial but no luck so far.
Also, if I change it to optimistic, do I need to do anything else in the code? do I need
to perform evictions by hand?
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