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Strange Problem - too many Connections?
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Strange Problem - too many Connections?

  • Subject: Strange Problem - too many Connections?
  • From: Christian Mittendorf <email@hidden>
  • Date: Tue, 3 Feb 2004 17:36:59 +0100
Hello,
perhaps somebody can explain these exceptions to me. What is happening here?

Some minutes ago I observed some strange exceptions in my application. There were about 40 concurrent sessions active. I watchted the log files and I found other exceptions, mainly occuring in the evening when the traffic is high.

How many concurrent sessions are possible? Is there any limit?

I'm running 1.5.2 on Debian Linux.

Thanks for any advice ;-)

Christian


[2004-02-02 18:57:23 CET] <WorkerThread14> <com.webobjects.appserver._private.WOComponentRequestHandler>: Exception occurred while handling request:
com.webobjects.foundation.NSForwardException [java.lang.StringIndexOutOfBoundsException] null
[2004-02-02 18:57:23 CET] <WorkerThread14> com.webobjects.foundation.NSForwardException for java.lang.StringIndexOutOfBoundsException: String index out of range: 62
at java.lang.String.charAt(String.java:460)
at com.webobjects.appserver._CookieParser._parse(_CookieParser.java:87)
at com.webobjects.appserver._CookieParser.parse(_CookieParser.java:173)
at com.webobjects.appserver.WORequest._cookieDictionary(WORequest.java: 1023)
at com.webobjects.appserver.WORequest.cookieValues(WORequest.java:1081)
at com.webobjects.appserver.WORequest.cookieValueForKey(WORequest.java: 1060)
at com.webobjects.appserver.WORequest._getSessionIDFromValuesOrCookie(WOReq uest.java:1605)
at com.webobjects.appserver.WORequest._getSessionIDFromValuesOrCookie(WOReq uest.java:1577)
at com.webobjects.appserver.WORequest.sessionID(WORequest.java:1549)
at com.webobjects.appserver.WOContext._synchronizeForDistribution(WOContext .java:484)
at com.webobjects.appserver.WOContext._setRequest(WOContext.java:536)
at com.webobjects.appserver.WOContext.<init>(WOContext.java:114)
at sun.reflect.GeneratedConstructorAccessor69.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingCons tructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at com.webobjects.foundation._NSUtilities.instantiateObject(_NSUtilities.ja va:575)
at com.webobjects.appserver.WOApplication.createContextForRequest(WOApplica tion.java:1676)
at com.webobjects.appserver._private.WOComponentRequestHandler._handleReque st(WOComponentRequestHandler.java:353)
at com.webobjects.appserver._private.WOComponentRequestHandler.handleReques t(WOComponentRequestHandler.java:432)
at com.webobjects.appserver.WOApplication.dispatchRequest(WOApplication.jav a:1308)
at com.webobjects.appserver._private.WOWorkerThread.runOnce(WOWorkerThread. java:173)
at com.webobjects.appserver._private.WOWorkerThread.run(WOWorkerThread.java :254)
at java.lang.Thread.run(Thread.java:536)


[2004-02-03 17:19:42 CET] <WorkerThread44> <com.webobjects.appserver._private.WOComponentRequestHandler>: Exception occurred while handling request:
com.webobjects.foundation.NSForwardException [com.webobjects.jdbcadaptor.JDBCAdaptorException] null
[2004-02-03 17:19:42 CET] <WorkerThread44> com.webobjects.foundation.NSForwardException for com.webobjects.jdbcadaptor.JDBCAdaptorException: EvaluateExpression failed: <com.webobjects.jdbcadaptor.MySQLPe
Next exception:SQL State:S1000 -- error code: 0 -- msg: Error during query: Unexpected Exception: java.lang.ArrayIndexOutOfBoundsException message given: -1
at com.webobjects.jdbcadaptor.JDBCContext._jdbcErrorWithChannel(JDBCContext .java:138)
at com.webobjects.jdbcadaptor.JDBCChannel._evaluateExpression(JDBCChannel.j ava:304)
at com.webobjects.jdbcadaptor.JDBCChannel.evaluateExpression(JDBCChannel.ja va:255)
at com.webobjects.jdbcadaptor.JDBCChannel.selectAttributes(JDBCChannel.java :185)
at com.webobjects.eoaccess.EODatabaseChannel._selectWithFetchSpecificationE ditingContext(EODatabaseChannel.java:879)
at com.webobjects.eoaccess.EODatabaseChannel.selectObjectsWithFetchSpecific ation(EODatabaseChannel.java:216)
at com.webobjects.eoaccess.EODatabaseContext._objectsWithFetchSpecification EditingContext(EODatabaseContext.java:3178)
at com.webobjects.eoaccess.EODatabaseContext.objectsWithFetchSpecification( EODatabaseContext.java:3319)
at com.webobjects.eocontrol.EOObjectStoreCoordinator.objectsWithFetchSpecif ication(EOObjectStoreCoordinator.java:535)
at com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification( EOEditingContext.java:4036)
at com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification( EOEditingContext.java:4421)
at com.webobjects.eoaccess.EOUtilities.objectsForEntityNamed(EOUtilities.ja va:64)
at Statistics.<init>(Statistics.java:52)
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