I am having the following problem every morning when trying to run my application for the first time.

I am using the following packages: - Tomcat 4.1.18 - j2sdk1.4.1_02 - mysql_3.23.55 - mysql-connector-java-2.0.14-bin

I included autoReconnect=true in the url, but I´m still having the same problem.

Does anyone knows what's happennig.

Best regards,

Sandra

java.sql.SQLException: Communication link failure: java.io.IOException at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1629) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:889) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:956) at com.mysql.jdbc.Connection.execSQL(Connection.java:1874) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1538) at bibliografia.publicacao.NucleoDAO.FindByName(NucleoDAO.java:231) at bibliografia.publicacao.PublicacaoBLogic.listAllNucleo(PublicacaoBLogic.java:57) at bibliografia.publicacao.PublicacaoActions.listNTI(PublicacaoActions.java:145) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.struts.actions.DispatchAction.perform(DispatchAction.java:236) at org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1787) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1586) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:492) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline. java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline. java:643) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline. java:641) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline. java:643) at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline. java:641) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline. java:641) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline. java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:432) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.ja va:386) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:534) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530) at java.lang.Thread.run(Thread.java:536)

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___________________________________________________

Sandra Lopes Silva

Núcleo de Tecnologias de Informação Departamento de Hidráulica e Ambiente Laboratório Nacional de Engenharia Civil

address: Av. Brasil, 101, 1700-066 Lisboa, Portugal phone: +351-21 844 37 48 Fax: +351-21 844 30 16

http://www.dha.lnec.pt/nti