Hi Ken, Take a look at this page: http://www.hibernate.org/hib_docs/entitymanager/reference/en/html/configuration.html As you can see the datasource is obtained using JNDI: <jta-data-source>java:/DefaultDS</jta-data-source>
Cheers, Kees de Kooter http://www.boplicity.net On Mon, Dec 29, 2008 at 14:41, Ken Bowen <kbo...@als.com> wrote: > Kees, > > Can you point me to a discussion of how to do that? > > Thanks, > Ken > > On Dec 29, 2008, at 3:42 AM, Kees de Kooter wrote: > >> Why don't u use the existing datasources for JPA (instead of setting >> the hibernate.connection properties)? >> >> Kees >> >> >> On Mon, Dec 29, 2008 at 00:50, Ken Bowen <kbo...@als.com> wrote: >>> >>> Hi All, >>> >>> I'm using: Tomcat 6.0.18; Mysql 5.0.51a; Java 1.5; Hibernate 3.2; (no >>> spring) >>> >>> MyApp utilizes five (5) distinct mysql catalogs (databases). >>> Originally all 5 were accessed using JDBC/JNDI with Resources that all >>> look >>> like this >>> (in webapps/MyApp/META-INF): >>> >>> <Resource name="jdbc/CATALOGNAME" auth="Container" >>> type="javax.sql.DataSource" >>> maxActive="100" maxIdle="30" maxWait="10000" >>> username="XXXXX" password="XXXXX" >>> driverClassName="com.mysql.jdbc.Driver" >>> url="jdbc:mysql://localhost:3306/CATALOGNAME" >>> validationQuery="select 1" >>> /> >>> >>> Everything worked fine, including the validationQuery to deal with MySQL >>> closing connections overnight. >>> >>> Recently I replaced the JDBC access for 3 of the catalogs by use of >>> JPA/Hibernate persistence, >>> while leaving the other two catalogs as originally implemented (they >>> consist >>> of large tables >>> containing daily price information; hence not very object-oriented.) The >>> persistence.xml looks >>> like this: >>> >>> <persistence-unit name="ctdbPU" transaction-type="RESOURCE_LOCAL"> >>> <provider>org.hibernate.ejb.HibernatePersistence</provider> >>> >>> ..... lots of class entries like: >>> <class>com.connectedtrading.database.users.AbstractLineitem</class> >>> <class>com.connectedtrading.database.users.Lineitem</class> >>> >>> <properties> >>> <property name="hibernate.connection.driver_class" >>> value="com.mysql.jdbc.Driver" /> >>> <property name="hibernate.connection.url" >>> value="jdbc:mysql://localhost:3306/CATALOGNAME" /> >>> <property name="hibernate.connection.username" value="XXXXX" /> >>> <property name="hibernate.connection.password" value="XXXXX" /> >>> </properties> >>> </persistence-unit> >>> >>> [Interestingly enough, only one of the 3 CATALOGNAMEs appears.] >>> Note that I left all 5 of the Resource elements in place in context.xml. >>> >>> Once again, everything works well, EXCEPT that now when I leave the >>> system >>> running overnight and >>> no accesses occur (it's only in dev mode), in the morning I now get the >>> exception shown at the >>> end of this email. It certainly looks like the "mysql" disconnect >>> behavior. >>> As with the JDBC case, repeating the access causes everything to start >>> working correctly. >>> The query being submitted is >>> >>> org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:75) >>> >>> >>> com.connectedtrading.database.users.UserDAO.findByProperty(UserDAO.java:180) >>> >>> com.connectedtrading.database.users.UserDAO.findByLogin(UserDAO.java:203) >>> >>> which is a hibernate query supporting user login. >>> >>> If anyone on the list has had experience with this issue under >>> JPA/Hibernate >>> persistence, >>> I hope you can give me some pointers to dealing with it. >>> >>> Thanks much in advance, >>> Ken Bowen >>> >>> ----- The Exception----- >>> >>> HTTP Status 500 - >>> >>> type Exception report >>> >>> message >>> >>> description The server encountered an internal error () that prevented it >>> from fulfilling this request. >>> >>> exception >>> >>> javax.servlet.ServletException: javax.persistence.PersistenceException: >>> org.hibernate.exception.JDBCConnectionException: could not execute query >>> >>> >>> org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:523) >>> >>> >>> org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421) >>> >>> >>> org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224) >>> >>> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194) >>> >>> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) >>> javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>> javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>> root cause >>> >>> javax.persistence.PersistenceException: >>> org.hibernate.exception.JDBCConnectionException: could not execute query >>> >>> >>> org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:630) >>> org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:75) >>> >>> >>> com.connectedtrading.database.users.UserDAO.findByProperty(UserDAO.java:180) >>> >>> com.connectedtrading.database.users.UserDAO.findByLogin(UserDAO.java:203) >>> >>> >>> com.connectedtrading.user_manage.LoginProcessor.locateUser(LoginProcessor.java:54) >>> >>> >>> com.connectedtrading.user_manage.LoginProcessor.checkLogin(LoginProcessor.java:35) >>> >>> >>> com.connectedtrading.actions.ProcessLoginAction.execute(ProcessLoginAction.java:33) >>> >>> >>> org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419) >>> >>> >>> org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224) >>> >>> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194) >>> >>> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) >>> javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>> javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>> root cause >>> >>> org.hibernate.exception.JDBCConnectionException: could not execute query >>> >>> >>> org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:74) >>> >>> >>> org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) >>> org.hibernate.loader.Loader.doList(Loader.java:2216) >>> org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104) >>> org.hibernate.loader.Loader.list(Loader.java:2099) >>> org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378) >>> >>> >>> org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338) >>> >>> >>> org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172) >>> org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121) >>> org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) >>> org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:66) >>> >>> >>> com.connectedtrading.database.users.UserDAO.findByProperty(UserDAO.java:180) >>> >>> com.connectedtrading.database.users.UserDAO.findByLogin(UserDAO.java:203) >>> >>> >>> com.connectedtrading.user_manage.LoginProcessor.locateUser(LoginProcessor.java:54) >>> >>> >>> com.connectedtrading.user_manage.LoginProcessor.checkLogin(LoginProcessor.java:35) >>> >>> >>> com.connectedtrading.actions.ProcessLoginAction.execute(ProcessLoginAction.java:33) >>> >>> >>> org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419) >>> >>> >>> org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224) >>> >>> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194) >>> >>> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) >>> javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>> javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>> root cause >>> >>> com.mysql.jdbc.CommunicationsException: Communications link failure due >>> to >>> underlying exception: >>> >>> ** BEGIN NESTED EXCEPTION ** >>> >>> java.net.SocketException >>> MESSAGE: Broken pipe >>> >>> STACKTRACE: >>> >>> java.net.SocketException: Broken pipe >>> at java.net.SocketOutputStream.socketWrite0(Native Method) >>> at >>> java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) >>> at java.net.SocketOutputStream.write(SocketOutputStream.java:136) >>> at >>> java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65) >>> at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123) >>> at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2739) >>> at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2650) >>> at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1581) >>> at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1695) >>> at com.mysql.jdbc.Connection.execSQL(Connection.java:3026) >>> at >>> >>> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1137) >>> at >>> >>> com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1231) >>> at >>> org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:186) >>> at org.hibernate.loader.Loader.getResultSet(Loader.java:1787) >>> at org.hibernate.loader.Loader.doQuery(Loader.java:674) >>> at >>> >>> org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236) >>> at org.hibernate.loader.Loader.doList(Loader.java:2213) >>> at >>> org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104) >>> at org.hibernate.loader.Loader.list(Loader.java:2099) >>> at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378) >>> at >>> >>> org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338) >>> at >>> >>> org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172) >>> at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121) >>> at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) >>> at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:66) >>> at >>> >>> com.connectedtrading.database.users.UserDAO.findByProperty(UserDAO.java:180) >>> at >>> com.connectedtrading.database.users.UserDAO.findByLogin(UserDAO.java:203) >>> at >>> >>> com.connectedtrading.user_manage.LoginProcessor.locateUser(LoginProcessor.java:54) >>> at >>> >>> com.connectedtrading.user_manage.LoginProcessor.checkLogin(LoginProcessor.java:35) >>> at >>> >>> com.connectedtrading.actions.ProcessLoginAction.execute(ProcessLoginAction.java:33) >>> at >>> >>> org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419) >>> at >>> >>> org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224) >>> at >>> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194) >>> at >>> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>> at >>> >>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) >>> at >>> >>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) >>> at >>> >>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) >>> at >>> >>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) >>> at >>> >>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) >>> at >>> >>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) >>> at >>> >>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) >>> at >>> >>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) >>> at >>> >>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845) >>> at >>> >>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) >>> at >>> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) >>> at java.lang.Thread.run(Thread.java:595) >>> >>> >>> ** END NESTED EXCEPTION ** >>> >>> >>> >>> Last packet sent to the server was 1 ms ago. >>> com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2757) >>> com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2650) >>> com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1581) >>> com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1695) >>> com.mysql.jdbc.Connection.execSQL(Connection.java:3026) >>> >>> >>> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1137) >>> >>> >>> com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1231) >>> >>> org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:186) >>> org.hibernate.loader.Loader.getResultSet(Loader.java:1787) >>> org.hibernate.loader.Loader.doQuery(Loader.java:674) >>> >>> >>> org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236) >>> org.hibernate.loader.Loader.doList(Loader.java:2213) >>> org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104) >>> org.hibernate.loader.Loader.list(Loader.java:2099) >>> org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378) >>> >>> >>> org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338) >>> >>> >>> org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172) >>> org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121) >>> org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) >>> org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:66) >>> >>> >>> com.connectedtrading.database.users.UserDAO.findByProperty(UserDAO.java:180) >>> >>> com.connectedtrading.database.users.UserDAO.findByLogin(UserDAO.java:203) >>> >>> >>> com.connectedtrading.user_manage.LoginProcessor.locateUser(LoginProcessor.java:54) >>> >>> >>> com.connectedtrading.user_manage.LoginProcessor.checkLogin(LoginProcessor.java:35) >>> >>> >>> com.connectedtrading.actions.ProcessLoginAction.execute(ProcessLoginAction.java:33) >>> >>> >>> org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419) >>> >>> >>> org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224) >>> >>> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194) >>> >>> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) >>> javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>> javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>> note The full stack trace of the root cause is available in the Apache >>> Tomcat/6.0.18 logs. >>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >>> For additional commands, e-mail: users-h...@tomcat.apache.org >>> >>> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
