Skip to Content
0
Former Member
Aug 20, 2010 at 01:09 PM

DTRServlet - 500 Internal Server Error is returned for HTTP request

195 Views

Hi everybody,

I've got a Problem with my DTR.

Recently we've set up the new CE 7.2 System.

The DTR has run until about 3 hours ago.

I don't know what I've done that this error occurs, but I'm nearly shure that I haven't done anything that depends on the dtr.

I went through the set up wizzard of "Connect Design Time for Visual Composer with NWDI" again, but nothing changed.

Can you please help me with this issue?!

Thank you and best regards

julian

_________________________________________________________________________________________________

This is the text from the application log:

_________________________________________________________________________________________________

#2.0 #2010 08 20 15:02:47:398#+0200#Info#/Applications/DTR/Lifecycle#

lifecycle.startApplicationInitialisation#BC-CTS-DTR-SRV#sap.com/tcdtrenterpriseapp#005056BA56AE050000000000000010D8#1694250000000004#sap.com/tcdtrenter

priseapp#com.tssap.dtr.server.servlet.WebdavServlet#Guest#0##F30581C3AC5A11DFCAED00000019DA2A#f30581c3ac5

a11dfcaed00000019da2a#f30581c3ac5a11dfcaed00000019da2a#0#Thread[HTTP Worker [@1902689675],5,Dedicated_Application_Thread]#Plain#com.tssap.dtr.server.deltav.resources.log_messages#

Starting initialisation of DTR application.#

#2.0 #2010 08 20 15:02:47:405#+0200#Fatal#/Applications/DTR/Lifecycle#

com.sap.DI.dtr.090009#BC-CTS-DTR-SRV#sap.com/tcdtrenterpriseapp#005056BA56AE050000000001000010D8#1694250000000004#sap.com/tcdtrente

rpriseapp#com.tssap.dtr.server.servlet.WebdavServlet#Guest#0##F30581C3AC5A11DFCAED00000019DA2A#f30581c3ac5

a11dfcaed00000019da2a#f30581c3ac5a11dfcaed00000019da2a#0#Thread[HTTP Worker [@1902689675],5,Dedicated_Application_Thread]#Plain#com.tssap.dtr.server.deltav.resources.log_messages#

Initialisation of DTR application failed. Please refer to SAP note 774339 for more details on how to analyze the error condition.#

_________________________________________________________________________________________________

And this is the message from the Default Trace: (not all, that didn't fit in this thread)

_________________________________________________________________________________________________

#2.0 #2010 08 20 15:13:49:744#+0200#Error#com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl#

com.sap.ASJ.web.000137#BC-CTS-DTR-SRV#sap.com/tcdtrenterpriseapp#005056BA56AE05D600000002000010D8#1694250000000004#sap.com/tcdtrent

erpriseapp#com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl#Guest#0##7F3F3C0AAC5A11DF869E00000019D

A2A#7db05704ac5c11dfa28500000019da2a#7db05704ac5c11dfa28500000019da2a#0#Thread[HTTP Worker [@236433360],5,Dedicated_Application_Thread]#Plain##

Cannot process an HTTP request to servlet [DTRServlet] in [dtr] web application.

[EXCEPTION]

javax.servlet.ServletException: WebdavServlet.init() failed : com.tssap.dtr.pvc.basics.cluster.TaskFailedException: Connection is invalid.

at com.tssap.dtr.server.servlet.WebdavServlet.init(WebdavServlet.java:471)

at javax.servlet.GenericServlet.init(GenericServlet.java:270)

at com.sap.engine.services.servlets_jsp.server.application.WebComponents.getServlet(WebComponents.java:864)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:326)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:203)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:438)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:427)

at com.sap.engine.services.servlets_jsp.filters.DSRWebContainerFilter.process(DSRWebContainerFilter.java:38)

..............

at com.sap.engine.services.httpserver.server.Processor.chainedRequest(Processor.java:447)

at com.sap.engine.services.httpserver.server.Processor$FCAProcessorThread.process(Processor.java:264)

at com.sap.engine.services.httpserver.server.rcm.RequestProcessorThread.run(RequestProcessorThread.java:56)

at com.sap.engine.core.thread.execution.Executable.run(Executable.java:122)

at com.sap.engine.core.thread.execution.Executable.run(Executable.java:101)

at com.sap.engine.core.thread.execution.CentralExecutor$SingleThread.run(CentralExecutor.java:328)

Caused by: com.tssap.dtr.pvc.basics.cluster.TaskFailedException: Connection is invalid.

at com.tssap.dtr.pvc.basics.cluster.ClusterExclusiveTaskRunner.start(ClusterExclusiveTaskRunner.java:54)

at com.tssap.dtr.server.deltav.impl.Repository.initialize(Repository.java:643)

at com.tssap.dtr.server.deltav.impl.Repository.initialize(Repository.java:613)

at com.tssap.dtr.server.servlet.WebdavServlet.initializeDeltaV(WebdavServlet.java:556)

at com.tssap.dtr.server.servlet.WebdavServlet.init(WebdavServlet.java:462)

... 36 more

Caused by: com.tssap.dtr.pvc.util.sql.SQLRuntimeException: Connection is invalid.

at com.tssap.dtr.pvc.util.sql.GenericStatementProvider.prepareStatement(GenericStatementProvider.java:75)

at com.tssap.dtr.pvc.util.sql.GenericStatementProvider._getPreparedStatement(GenericStatementProvider.java:62)

at com.tssap.dtr.pvc.util.sql.GenericStatementProvider.getPreparedStatement(GenericStatementProvider.java:44)

at com.tssap.dtr.pvc.basics.persistence.PersistentClass.getPreparedStatement(PersistentClass.java:148)

at com.tssap.dtr.pvc.repository.TaggedValuePersistentClass.loadTaggedValue(TaggedValuePersistentClass.java:113)

at com.tssap.dtr.pvc.repository.TaggedValueTransientClass.loadTaggedValue(TaggedValueTransientClass.java:51)

at com.tssap.dtr.pvc.repository.RepositoryManager._checkDbInitialization(RepositoryManager.java:288)

at com.tssap.dtr.pvc.repository.RepositoryManager.isDbInitialized(RepositoryManager.java:1128)

at com.tssap.dtr.server.deltav.impl.Repository.initializeDeltaV(Repository.java:558)

at com.tssap.dtr.server.deltav.impl.Repository$1.run(Repository.java:645)

at com.tssap.dtr.pvc.basics.cluster.ClusterExclusiveTaskRunner.startTask(ClusterExclusiveTaskRunner.java:65)

at com.tssap.dtr.pvc.basics.cluster.ClusterExclusiveTaskRunner.start(ClusterExclusiveTaskRunner.java:51)

... 40 more

Caused by: com.sap.engine.services.dbpool.exceptions.BaseSQLException: Connection is invalid.

at com.sap.engine.services.dbpool.cci.ConnectionHandle.checkIfInvalid(ConnectionHandle.java:652)

at com.sap.engine.services.dbpool.cci.ConnectionHandle.checkIfValid(ConnectionHandle.java:639)

at com.sap.engine.services.dbpool.cci.ConnectionHandle.prepareStatement(ConnectionHandle.java:113)

at com.tssap.dtr.pvc.basics.transaction.SharedConnection.prepareStatement(SharedConnection.java:131)

at com.tssap.dtr.pvc.util.sql.GenericStatementProvider.prepareStatement(GenericStatementProvider.java:73)

... 51 more

#