can you try with MVCC enabled. http://www.h2database.com/html/advanced.html#mvcc
Thanks Veresh -----Original Message----- From: Les Spivey [mailto:[email protected]] Sent: Tuesday, July 13, 2010 2:58 PM To: [email protected] Subject: RE: h2 as internal database I tried using a recent snapshot of Ode 1.3.5 in Tomcat 5.5 using the instructions for H2 and Hibernate here: http://ode.apache.org/ode-schema.html. My ode-axis2.properties are: ode-axis2.db.pool.min=20 ode-axis2.db.pool.max=200 ode-axis2.threads.pool.size=200 #ode-axis2.threads.pool.size=1 ode-axis2.dao.factory=org.apache.ode.daohib.bpel.BpelDAOConnectionFactoryImpl ode-axis2.db.mode=INTERNAL ode-axis2.db.int.jdbcurl=jdbc:h2:file:C:/Progra~1/Tomcat_5_5/webapps/ode/WEB-INF/h2db/ode-db;DB_CLOSE_ON_EXIT=false;user=sa ode-axis2.db.int.driver=org.h2.Driver hibernate.dialect=org.hibernate.dialect.H2Dialect ode-axis2.acquireTransactionLocks=true Using the Ode HelloWorld2 example, if I start a single thread in JMeter to access the service it works fine. However, if I try multiple threads hitting the service (say 20) I almost immediately get the exception that follows. This is similar to what I see with Derby under the same conditions. Do either Derby or H2 actually work when the ode-axis2.threads.pool.size is greater than one? 14:45:07,697 WARN [GeronimoConnectionEventListener] connectionErrorOccurred called with null org.h2.jdbc.JdbcSQLException: Timeout trying to lock table "ODE_JOB"; SQL statement: insert into ODE_JOB (jobid, nodeid, ts, scheduled, transacted, instanceId,mexId,processId,type,channel,correlatorId,correlationKeyS et,retryCount,inMem,detailsExt) values(?, ?, ?, ?, ?,?,?,?,?,?,?,?,?,?,?) [50200-137] at org.h2.message.DbException.getJdbcSQLException(DbException.java:327) at org.h2.message.DbException.get(DbException.java:167) at org.h2.message.DbException.get(DbException.java:144) at org.h2.table.RegularTable.doLock(RegularTable.java:466) at org.h2.table.RegularTable.lock(RegularTable.java:404) at org.h2.command.dml.Insert.insertRows(Insert.java:119) at org.h2.command.dml.Insert.update(Insert.java:82) at org.h2.command.CommandContainer.update(CommandContainer.java:70) at org.h2.command.Command.executeUpdate(Command.java:199) at org.h2.jdbc.JdbcPreparedStatement.executeUpdateInternal(JdbcPreparedStatement.java:141) at org.h2.jdbc.JdbcPreparedStatement.executeUpdate(JdbcPreparedStatement.java:127) at org.tranql.connector.jdbc.PreparedStatementHandle.executeUpdate(PreparedStatementHandle.java:103) at org.apache.ode.scheduler.simple.JdbcDelegate.insertJob(JdbcDelegate.java:229) at org.apache.ode.scheduler.simple.SimpleScheduler.schedulePersistedJob(SimpleScheduler.java:378) at org.apache.ode.scheduler.simple.SimpleScheduler.schedulePersistedJob(SimpleScheduler.java:354) at org.apache.ode.bpel.engine.MyRoleMessageExchangeImpl.invoke(MyRoleMessageExchangeImpl.java:154) at org.apache.ode.axis2.ODEService.onAxisMessageExchange(ODEService.java:126) at org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(ODEMessageReceiver.java:69) at org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(ODEMessageReceiver.java:52) at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:114) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:173) at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:167) at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:142) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:837) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:640) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1287) at java.lang.Thread.run(Unknown Source) 14:45:07,806 ERROR [SimpleScheduler] Database error. org.apache.ode.scheduler.simple.DatabaseException: org.h2.jdbc.JdbcSQLException: Timeout trying to lock table "ODE_JOB"; SQL stateme nt: insert into ODE_JOB (jobid, nodeid, ts, scheduled, transacted, instanceId,mexId,processId,type,channel,correlatorId,correlationKeyS et,retryCount,inMem,detailsExt) values(?, ?, ?, ?, ?,?,?,?,?,?,?,?,?,?,?) [50200-137] at org.apache.ode.scheduler.simple.JdbcDelegate.insertJob(JdbcDelegate.java:231) at org.apache.ode.scheduler.simple.SimpleScheduler.schedulePersistedJob(SimpleScheduler.java:378) at org.apache.ode.scheduler.simple.SimpleScheduler.schedulePersistedJob(SimpleScheduler.java:354) at org.apache.ode.bpel.engine.MyRoleMessageExchangeImpl.invoke(MyRoleMessageExchangeImpl.java:154) at org.apache.ode.axis2.ODEService.onAxisMessageExchange(ODEService.java:126) at org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(ODEMessageReceiver.java:69) at org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(ODEMessageReceiver.java:52) -----Original Message----- From: Rafal Rusin [mailto:[email protected]] Sent: Wednesday, July 07, 2010 2:12 PM To: [email protected] Subject: Re: h2 as internal database In order to get rid of deadlocks in H2, you need to grab latest ODE snapshot and add ode.acquireTransactionLocks=true to ode-axis2.properties. It's needed, because H2 uses poor locking mechanism. I tried H2 with Hibernate and it worked well. On Wed, Jul 7, 2010 at 8:27 PM, Les Spivey <[email protected]> wrote: > The Ode documentation here > http://ode.apache.org/ode-jbi-and-axis2-properties-overview.html shows > how to setup an internal database other than Derby using > "ode-axis2.db.mode=INTERNAL". Has anyone done this with H2? I've tried > and it appears to work until there is any kind of load then I get > "org.apache.openjpa.persistence.PersistenceException: Deadlock detected" > exceptions. ode-axis2.threads.pool.size is set to 200. > > > > I've seen examples with H2 as an external database using Hibernate but I > cannot use Hibernate because of the license. Also, I'm using Jetty and > not Tomcat. Any suggestions? > > > > Thanks, Les. > > -- Regards, Rafał Rusin http://rrusin.blogspot.com
