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#1 2017-03-02 05:05:49

aaronmartin1651
Member
Registered: 2017-03-02

The report could not be executed: Could not open connection

I get the message that "The report could not be executed: Could not open connection to: jdbc:mysql://ipaddress:3306/DeptSalesData with user: username. Query may not be empty" and the error details are as follows:

net.datenwerke.gxtdto.client.servercommunication.exceptions.NonFatalException: The report could not be executed: Could not open connection to: jdbc:mysql://ipadress:3306/DeptSalesData with user: username. Query may not be empty<br>    at net.datenwerke.rs.base.server.table.TableReportUtilityServiceImpl.getReturnedColumns(TableReportUtilityServiceImpl.java:218)<br>    at com.google.inject.persist.jpa.JpaLocalTxnInterceptor.invoke(JpaLocalTxnInterceptor.java:66)<br>    at net.datenwerke.security.service.security.aop.SecurityCheckInterceptor.invoke(SecurityCheckInterceptor.java:109)<br>    at net.datenwerke.gf.service.gwtstacktrace.CatchStacktraceInterceptor.invoke(CatchStacktraceInterceptor.java:38)<br>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br>    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)<br>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)<br>    at java.lang.reflect.Method.invoke(Method.java:498)<br>    at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:587)<br>    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:333)<br>    at net.datenwerke.security.service.security.aop.SecurityCheckInterceptor.invoke(SecurityCheckInterceptor.java:109)<br>    at net.datenwerke.gf.service.gwtstacktrace.CatchStacktraceInterceptor.invoke(CatchStacktraceInterceptor.java:38)<br>    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:303)<br>    at net.datenwerke.security.service.security.aop.SecurityCheckInterceptor.invoke(SecurityCheckInterceptor.java:109)<br>    at net.datenwerke.gf.service.gwtstacktrace.CatchStacktraceInterceptor.invoke(CatchStacktraceInterceptor.java:38)<br>    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:373)<br>    at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)<br>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)<br>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)<br>    at net.datenwerke.security.service.security.aop.SecurityCheckInterceptor.invoke(SecurityCheckInterceptor.java:109)<br>    at net.datenwerke.gf.service.gwtstacktrace.CatchStacktraceInterceptor.invoke(CatchStacktraceInterceptor.java:38)<br>    at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:263)<br>    at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:178)<br>    at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)<br>    at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:62)<br>    at com.google.inject.persist.PersistFilter.doFilter(PersistFilter.java:89)<br>    at com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:163)<br>    at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58)<br>    at com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:168)<br>    at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58)<br>    at com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:168)<br>    at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58)<br>    at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118)<br>    at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113)<br>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)<br>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)<br>    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)<br>    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)<br>    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)<br>    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)<br>    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)<br>    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)<br>    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)<br>    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:509)<br>    at org.apache.coyote.ajp.AbstractAjpProcessor.process(AbstractAjpProcessor.java:877)<br>    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)<br>    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2508)<br>    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2497)<br>    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)<br>    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)<br>    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)<br>    at java.lang.Thread.run(Thread.java:745)<br>Caused by: net.datenwerke.rs.core.service.reportmanager.exceptions.ReportExecutorException: The report could not be executed: Could not open connection to: jdbc:mysql://ipadress:3306/DeptSalesData with user: username. Query may not be empty<br>    at net.datenwerke.rs.core.service.reportmanager.ReportExecutorServiceImpl.execute(ReportExecutorServiceImpl.java:218)<br>    at net.datenwerke.rs.core.service.reportmanager.ReportExecutorServiceImpl.execute(ReportExecutorServiceImpl.java:119)<br>    at net.datenwerke.rs.core.service.reportmanager.ReportExecutorServiceImpl.execute(ReportExecutorServiceImpl.java:106)<br>    at net.datenwerke.rs.core.service.reportmanager.ReportExecutorServiceImpl.execute(ReportExecutorServiceImpl.java:101)<br>    at net.datenwerke.rs.base.service.reportengines.table.TableReportUtilsImpl.getReturnedColumns(TableReportUtilsImpl.java:180)<br>    at net.datenwerke.rs.base.service.reportengines.table.TableReportUtilsImpl.getReturnedPlainColumns(TableReportUtilsImpl.java:144)<br>    at net.datenwerke.rs.base.server.table.TableReportUtilityServiceImpl.getReturnedColumns(TableReportUtilityServiceImpl.java:214)<br>    ... 51 more<br>Caused by: net.datenwerke.rs.core.service.reportmanager.exceptions.DatabaseConnectionException: Could not open connection to: jdbc:mysql://ipadress:3306/DeptSalesData with user: username. Query may not be empty<br>    at net.datenwerke.rs.base.service.datasources.transformers.database.Database2TableTransformer.transform(Database2TableTransformer.java:57)<br>    at net.datenwerke.rs.base.service.datasources.transformers.database.Database2TableTransformer.transform(Database2TableTransformer.java:1)<br>    at net.datenwerke.rs.base.service.datasources.transformers.DatasourceTransformationServiceImpl.transform(DatasourceTransformationServiceImpl.java:29)<br>    at net.datenwerke.rs.core.service.reportmanager.engine.ReportEngine.transformDatasource(ReportEngine.java:240)<br>    at net.datenwerke.rs.base.service.reportengines.table.TableReportEngine.doExecuteNormal(TableReportEngine.java:172)<br>    at net.datenwerke.rs.base.service.reportengines.table.TableReportEngine.doExecuteNormal(TableReportEngine.java:151)<br>    at net.datenwerke.rs.base.service.reportengines.table.TableReportEngine.doExecute(TableReportEngine.java:88)<br>    at net.datenwerke.rs.core.service.reportmanager.engine.ReportEngine.execute(ReportEngine.java:148)<br>    at net.datenwerke.rs.core.service.reportmanager.ReportExecutorServiceImpl.execute(ReportExecutorServiceImpl.java:186)<br>    ... 57 more<br>Caused by: java.lang.IllegalArgumentException: Query may not be empty<br>    at net.datenwerke.rs.base.service.datasources.table.impl.TableDBDataSource.&lt;init&gt;(TableDBDataSource.java:97)<br>    at net.datenwerke.rs.base.service.datasources.transformers.database.Database2TableTransformer.transform(Database2TableTransformer.java:55)<br>    ... 65 more<br>

however when I go to datasources and click "Test Connection" I get the message "Success:The connection test was successful"

I have seen some posts about pool configuration but I can't find the file location to attempt to edit it.  To be honest, the "could not open connection"   message comes up almost immediately so I don't think that is the problem but I will try anything.  Location of the file to edit maxPoolSize  would be helpful as well as any suggestions for anything else it could be.

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#2 2017-03-02 08:47:00

IF_Eduardo
Administrator
Registered: 2016-11-01
Website

Re: The report could not be executed: Could not open connection

Hi aaronmartin,

the pool configuration can be found on the configuration file: datasources/pool.cf ( https://reportserver.net/en/guides/conf … es-poolcf/ )
But this seems to be a problem with your report. Is it a dynamic list? It seems to be one.
Have you checked if there is really a query on the report? After entering the query, don't forget to press "Apply" button, otherwise reportserver will try to open the report with the empty query. The message only appears when the query is empty:

if(null == query || "".equals(query.trim()))
            throw new IllegalArgumentException("Query may not be empty");

Cheers,
Eduardo

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#3 2017-03-03 18:11:21

aaronmartin1651
Member
Registered: 2017-03-02

Re: The report could not be executed: Could not open connection

You are correct, I thought I had to enter my query at a different portion, once I entered my query it was fine.  Thank you.

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