4:03 p.m.
Why use an XA datasource? It would not seem that the BRMS would be
involved in global transactions with multiple participants. Perhaps you
could try a local tx datasource and see if you still get the warning.
The exception is logged at INFO; typically it is not a problem, since
the app server will close the connection. I seem to remember there is
even a setting on the datasource to suppress the warning message. Not
sure why execution would stop for 4-5 seconds though.
mmquelo massi wrote:
Hi guys!
I have got JBoss 4.2.2, DROOLS BRMS 4.0.4 and Oracle 10g XE as RDBMS.
I defined an Oracle XA Datasource Drools Repository as follows:
/<xa-datasource>
<jndi-name>jdbc_XA/Drools_Rep</jndi-name>
<track-connection-by-tx/>
<isSameRM-override-value>false</isSameRM-override-value>
<xa-datasource-class>oracle.jdbc.xa.client.OracleXADataSource</xa-datasource-class>
<xa-datasource-property
name="URL">jdbc:oracle:thin:@//localhost:1521/xe</xa-datasource-property>
<xa-datasource-property
name="User">...</xa-datasource-property>
<xa-datasource-property
name="Password">...</xa-datasource-property>
<exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleExceptionSorter</exception-sorter-class-name>
<!--
<prepared-statement-cache-size>0</prepared-statement-cache-size> -->
<!-- <blocking-timeout-millis>100</blocking-timeout-millis> -->
<!-- <min-pool-size>2</min-pool-size> -->
<!-- <max-pool-size>30</max-pool-size> -->/
/
<valid-connection-checker-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleValidConnectionChecker</valid-connection-checker-class-name>/
/ <no-tx-separate-pools/>
<metadata>
<type-mapping>Oracle9i</type-mapping>
</metadata>
<use-java-context>false</use-java-context>
</xa-datasource>/
This repository is managed with JackRabbit.
So i defined the "repository.xml" telling jackrabbit that I want
to persist the rules into the Oracle XA Datasource I previously defined:
/ <PersistenceManager
class="org.apache.jackrabbit.core.persistence.db.JNDIDatabasePersistenceManager">
<param name="dataSourceLocation"
value="jdbc_XA/Drools_Rep"/>
<param name="schema" value="oracle"/>
<param name="schemaObjectPrefix" value="${wsp.name
<http://wsp.name>}_"/>
<param name="externalBLOBs" value="false" />
</PersistenceManager>/
The problem comes out each time I reload the rulebase from
the BRMS....each time the RuleAgent wants to load
a rulebase (from the XA datasource ) the following exception is
thrown and the execution stops for 4-5 seconds:
/12:29:36,170 INFO [CachedConnectionManager] Closing a connection for
you. Please close them yourself:
org.jboss.resource.adapter.jdbc.WrappedConnection@d74f7d/
/java.lang.Throwable: STACKTRACE/
/at
org.jboss.resource.connectionmanager.CachedConnectionManager.registerConnection(/
/CachedConnectionManager.java:290/ /)/
/at
org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(/
/BaseConnectionManager2.java:417/ /)/
/at
org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(/
/BaseConnectionManager2.java:842/ /)/
/at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(/
/WrapperDataSource.java:88/ /)/
/at
org.apache.jackrabbit.core.persistence.db.JNDIDatabasePersistenceManager.getConnection(/
/JNDIDatabasePersistenceManager.java:77/ /)/
/at
org.apache.jackrabbit.core.persistence.db.DatabasePersistenceManager.initConnection(/
/DatabasePersistenceManager.java:730/ /)/
/at
org.apache.jackrabbit.core.persistence.db.DatabasePersistenceManager.reestablishConnection(/
/DatabasePersistenceManager.java:806/ /)/
/at
org.apache.jackrabbit.core.persistence.db.DatabasePersistenceManager.executeStmt(/
/DatabasePersistenceManager.java:852/ /)/
/at
org.apache.jackrabbit.core.persistence.db.DatabasePersistenceManager.exists(/
/DatabasePersistenceManager.java:673/ /)/
/at
org.apache.jackrabbit.core.state.SharedItemStateManager.hasNonVirtualItemState(/
/SharedItemStateManager.java:1104/ /)/
/at org.apache.jackrabbit.core.state.SharedItemStateManager.hasItemState(/
/SharedItemStateManager.java:289/ /)/
/at org.apache.jackrabbit.core.state.LocalItemStateManager.hasItemState(/
/LocalItemStateManager.java:180/ /)/
/at org.apache.jackrabbit.core.state.XAItemStateManager.hasItemState(/
/XAItemStateManager.java:252/ /)/
/at
org.apache.jackrabbit.core.state.SessionItemStateManager.hasItemState(/
/SessionItemStateManager.java:199/ /)/
/at org.apache.jackrabbit.core.ItemManager.itemExists(/
/ItemManager.java:258/ /)/
/at org.apache.jackrabbit.core.NodeImpl.hasProperty(/
/NodeImpl.java:2708/ /)/
/at org.drools.repository.PackageItem.getCompiledPackageBytes(/
/PackageItem.java:666/ /)/
/at org.drools.brms.server.files.FileManagerUtils.loadBinaryPackage(/
/FileManagerUtils.java:146/ /)/
/at sun.reflect.NativeMethodAccessorImpl.invoke0(/
/Native Method/ /)/
/at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)/
/at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)/
/at java.lang.reflect.Method.invoke(Unknown Source)/
/at org.jboss.seam.util.Reflections.invoke(/
/Reflections.java:21/ /)/
/at org.jboss.seam.intercept.RootInvocationContext.proceed(/
/RootInvocationContext.java:31/ /)/
/at org.jboss.seam.intercept.SeamInvocationContext.proceed(/
/SeamInvocationContext.java:56/ /)/
/at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(/
/RollbackInterceptor.java:31/ /)/
/at org.jboss.seam.intercept.SeamInvocationContext.proceed(/
/SeamInvocationContext.java:68/ /)/
/at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(/
/BijectionInterceptor.java:46/ /)/
/at org.jboss.seam.intercept.SeamInvocationContext.proceed(/
/SeamInvocationContext.java:68/ /)/
/at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(/
/MethodContextInterceptor.java:42/ /)/
/at org.jboss.seam.intercept.SeamInvocationContext.proceed(/
/SeamInvocationContext.java:68/ /)/
/at org.jboss.seam.security.SecurityInterceptor.aroundInvoke(/
/SecurityInterceptor.java:40/ /)/
/at org.jboss.seam.intercept.SeamInvocationContext.proceed(/
/SeamInvocationContext.java:68/ /)/
/at org.jboss.seam.intercept.RootInterceptor.invoke(/
/RootInterceptor.java:106/ /)/
/at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(/
/JavaBeanInterceptor.java:155/ /)/
/at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(/
/JavaBeanInterceptor.java:91/ /)/
/at
org.drools.brms.server.files.FileManagerUtils_$$_javassist_1.loadBinaryPackage(FileManagerUtils_$$_javassist_1.java)/
/at org.drools.brms.server.files.PackageDeploymentServlet.doGet(/
/PackageDeploymentServlet.java:99/ /)/
/at javax.servlet.http.HttpServlet.service(/
/HttpServlet.java:690/ /)/
/at javax.servlet.http.HttpServlet.service(/
/HttpServlet.java:803/ /)/
/at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(/
/ApplicationFilterChain.java:290/ /)/
/at org.apache.catalina.core.ApplicationFilterChain.doFilter(/
/ApplicationFilterChain.java:206/ /)/
/at org.jboss.seam.web.ContextFilter$1.process(/
/ContextFilter.java:42/ /)/
/at org.jboss.seam.servlet.ContextualHttpServletRequest.run(/
/ContextualHttpServletRequest.java:46/ /)/
/at org.jboss.seam.web.ContextFilter.doFilter(/
/ContextFilter.java:37/ /)/
/at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(/
/ApplicationFilterChain.java:235/ /)/
/at org.apache.catalina.core.ApplicationFilterChain.doFilter(/
/ApplicationFilterChain.java:206/ /)/
/at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(/
/ReplyHeaderFilter.java:96/ /)/
/at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(/
/ApplicationFilterChain.java:235/ /)/
/at org.apache.catalina.core.ApplicationFilterChain.doFilter(/
/ApplicationFilterChain.java:206/ /)/
/at org.apache.catalina.core.StandardWrapperValve.invoke(/
/StandardWrapperValve.java:230/ /)/
/at org.apache.catalina.core.StandardContextValve.invoke(/
/StandardContextValve.java:175/ /)/
/at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(/
/SecurityAssociationValve.java:179/ /)/
/at org.jboss.web.tomcat.security.JaccContextValve.invoke(/
/JaccContextValve.java:84/ /)/
/at org.apache.catalina.core.StandardHostValve.invoke(/
/StandardHostValve.java:127/ /)/
/at org.apache.catalina.valves.ErrorReportValve.invoke(/
/ErrorReportValve.java:102/ /)/
/at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(/
/CachedConnectionValve.java:157/ /)/
/at org.apache.catalina.core.StandardEngineValve.invoke(/
/StandardEngineValve.java:109/ /)/
/at org.apache.catalina.connector.CoyoteAdapter.service(/
/CoyoteAdapter.java:262/ /)/
/at org.apache.coyote.http11.Http11Processor.process(/
/Http11Processor.java:844/ /)/
/at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(/
/Http11Protocol.java:583/ /)/
/at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(/
/JIoEndpoint.java:446/ /)/
/at java.lang.Thread.run(Unknown Source)/
*As u can see, each time jboss tries to access the drools DS, it finds*
*a previous connection opened, so Jboss HAS TO close it by itself!*
As far as U know, Is there any way to tell JackRabbit that he has to
close connections?
Hibernate has something like that so I expect that JackRabbit does the
same...
I already tried to redefine the XA datasource setting some tags
related to the
"connection\connection pools" but it did not work...that's why I am
quite sure
the problem has to be focused on jackrabbit!
Thank you anyway.
If u want you can answer me to m.magistri(a)reply.it
<mailto:m.magistri@reply.it> as well.
Bye.
Massi
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