6:59 a.m.
Hello,
I am a newbie in JBoss Cache, and in J2EE in general. I am trying to configure JBoss Cache
as a MBean under JBoss AS. This are the products versions that i am using:
| * Jboss 4.0.5. GA (EJB3)
| * JBossCache 1.4.1. GA
|
I have looked all the available documentation that i know, which are:
| * PojoCache User Documentation:
http://labs.jboss.com/file-access/default/members/jbosscache/freezone/doc...
| * JBoss Cache Tutorial:
http://labs.jboss.com/file-access/default/members/jbosscache/freezone/doc...
| * JBoss Cache FAQ:
http://labs.jboss.com/file-access/default/members/jbosscache/freezone/doc...
|
I have also studied the examples available in the JBossCache 1.4.1 GA example directory.
I want to have the PojoCache running as a MBean under JBoss AS. So this is my
xxx-service.xml content:
| <?xml version="1.0" encoding="UTF-8"?>
|
| <!-- ===================================================================== -->
| <!-- -->
| <!-- PojoCache Service Configuration -->
| <!-- -->
| <!-- ===================================================================== -->
|
| <server>
|
| <classpath codebase="./lib" archives="jboss-cache.jar,
jgroups.jar"/>
|
|
| <!-- ====================================================================
-->
| <!-- Defines PojoCache configuration
-->
| <!-- ====================================================================
-->
|
| <mbean code="org.jboss.cache.aop.PojoCache"
name="jboss.cache:service=DesaladoraPojoCache">
| <!-- Used inside JBoss AS -->
| <depends>jboss:service=Naming</depends>
| <depends>jboss:service=TransactionManager</depends>
|
| <!--
| Configure the TransactionManager
| -->
| <attribute
name="TransactionManagerLookupClass">org.jboss.cache.JBossTransactionManagerLookup</attribute>
|
| <!--
| Node locking scheme:
| OPTIMISTIC
| PESSIMISTIC (default)
| -->
| <attribute
name="NodeLockingScheme">PESSIMISTIC</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>
|
| <!--
| Name of cluster. Needs to be the same for all clusters, in order
| to find each other
| -->
| <attribute name="ClusterName">Sample-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="228.1.2.5" mcast_port="45577"
| 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"/>
| <VERIFY_SUSPECT timeout="1500"
| up_thread="false"
down_thread="false"/>
| <pbcast.NAKACK gc_lag="50"
retransmit_timeout="600,1200,2400,4800"
| up_thread="false"
down_thread="false"/>
| <pbcast.STABLE desired_avg_gossip="20000"
| up_thread="false"
down_thread="false"/>
| <UNICAST timeout="600,1200,2400" window_size="100"
min_threshold="10"
| 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>
|
| </mbean>
|
| </server>
|
I think that the instalation is correct, cause a see through the JMX Agent View the
"service=DesaladoraPojoCache" (jboss.cache). This is the message that i get when
i started the server:
| 10:41:31,015 INFO [InterceptorChainFactory] interceptor chain is:
| class org.jboss.cache.interceptors.CallInterceptor
| class org.jboss.cache.interceptors.PessimisticLockInterceptor
| class org.jboss.cache.interceptors.UnlockInterceptor
| class org.jboss.cache.interceptors.TxInterceptor
| class org.jboss.cache.interceptors.CacheMgmtInterceptor
| 10:41:31,156 INFO [TreeCache] parseConfig(): PojoCacheConfig is empty
|
These are my questions:
| * Is this xxx-cache-service.xml correct for a PojoCache under Jboss AS?
| * I want to use the PojoCache locally in a single JVM as a shared memory between EJB.
Do I need to specify the "ClusterConfig" attribute? <attribute
name="ClusterConfig">
| * Is there any problem with this line in the server start up?:
|
| | 10:41:31,156 INFO [TreeCache] parseConfig(): PojoCacheConfig is empty
| |
| * I don't see any example in the "example" directory
(jboss-cache-dist-1.4.1.GA.zip) for a PojoCahe running as a MBean under JBoss AS. All
examples (even in the documentation examples), correct me if I am wrong, are for a
Standalone environment for a PojoCache. So I don't know exactly how to access the
MBean and how to work with the cache. This is what i am trying:
|
| | MBeanServer server;
| | PojoCacheMBean cache;
| | SensorRead test = new SensorRead(new Double("2.2"),
"TestSensor", "Configuration details");
| |
| | server = MBeanServerLocator.locateJBoss();
| |
| | try {
| | cache = (PojoCacheMBean) MBeanProxyExt.create(PojoCacheMBean.class,
| |
"jboss.cache:service=DesaladoraPojoCache",
| | server);
| | cache.putObject("/aop/sensor", test);
| | }
| | catch (MalformedObjectNameException e) {
| | // TODO Auto-generated catch block
| | e.printStackTrace();
| | }
| | catch (CacheException e) {
| | // TODO Auto-generated catch block
| | e.printStackTrace();
| | }
| |
| This is the code for SensorRead bean:
|
| | package stpd.component.sensors.reads;
| |
| | import org.jboss.cache.aop.annotation.InstanceOfPojoCacheable;
| |
| | /**
| | * @author Nacho
| | *
| | */
| | @SuppressWarnings("serial")
| | @InstanceOfPojoCacheable
| | public class SensorRead {
| |
| | private Double value;
| | private String sensorName; // Tupla type-plantLocalization
| | private String ConfigDetails;
| |
| | public SensorRead() {
| | super();
| | // TODO Auto-generated constructor stub
| | }
| |
| | public SensorRead(Double value, String name, String configDetails) {
| | super();
| | this.value = value;
| | this.sensorName = name;
| | ConfigDetails = configDetails;
| | }
| |
| | public String getConfigDetails() {
| | return ConfigDetails;
| | }
| |
| | public void setConfigDetails(String configDetails) {
| | ConfigDetails = configDetails;
| | }
| |
| | public String getSensorName() {
| | return sensorName;
| | }
| |
| | public void setSensorName(String name) {
| | this.sensorName = name;
| | }
| |
| | public Double getValue() {
| | return value;
| | }
| |
| | public void setValue(Double value) {
| | this.value = value;
| | }
| | }
| |
| And this is the exception that I am getting:
|
| | 12:32:08,203 WARN [AbstractExceptionHandler] Unhandled exception
| | javax.ejb.EJBException: java.lang.RuntimeException: PojoCache.putObject(): fqn:
/aop/sensor
| | at
org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:69)
| | at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83)
| | at
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197)
| | at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| | at
org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
| | at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| | at
org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
| | at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| | at
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
| | at
org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:131)
| | at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| | at
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
| | at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| | at
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
| | at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| | at
org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:211)
| | at
org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:79)
| | ...
| |
| If you need i can put all the stack message, but is too long... and this post is
getting to long already.
|
Thanks you in advance. JBoss Cache is a great idea and product, but i am only having
problems to use it. You are doing a great job and I hope that I can resolve my actual
problems, cause I am kind of stock here...
Thx again and sorry for this long post... but I am trying to put all the important and
needed information.
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