Re: MySQL driver randomly not found?
Just curious...Why are you using a symlink? [EMAIL PROTECTED] 10/14/04 9:59 AM Hello! I'm having an interesting problem wherein about 5-10% of the time, for no apparent reason whatsover, the MySQL driver just can not be found. I have a symlink to it in TOMCAT_DIR/common/lib. I just replaced the symlink with a copy of the actual library to see if that would make a difference, but it doesn't make sense that it would work 90-95% of the time and then fail the rest of the time if that were the problem. The traceback I get is as follows: // NOTE: replaced org.apache. with ''. Cannot load JDBC driver class 'com.mysql.jdbc.jdbc2.optional.MysqlDataSource' java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:854) at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:721) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:141) at commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760) at commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at RequestFilterServlet.getUrlMapping(RequestFilterServlet.java:187) at RequestFilterServlet.doFilter(RequestFilterServlet.java:277) at catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) at catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198) at catalina.core.StandardContextValve.invoke(StandardContextValve.java:144) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.ContainerBase.invoke(ContainerBase.java:929) at coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300) at jk.common.HandlerRequest.invoke(HandlerRequest.java:374) at jk.common.ChannelSocket.invoke(ChannelSocket.java:743) at jk.common.ChannelSocket.processConnection(ChannelSocket.java:675) at jk.common.SocketConnection.runIt(ChannelSocket.java:866) at tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) at java.lang.Thread.run(Thread.java:534) Any suggestions welcome. Thanks. --Kaleb PS: I'm using tomcat 5.0.28 and version 3.0.15 of the MySQL connector. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: MySQL driver randomly not found?
Hi, Does it happen without the connectors/Apache in front? Yoav Shapira http://www.yoavshapira.com -Original Message- From: Larry Meadors [mailto:[EMAIL PROTECTED] Sent: Thursday, October 14, 2004 12:13 PM To: [EMAIL PROTECTED] Subject: Re: MySQL driver randomly not found? Just curious...Why are you using a symlink? [EMAIL PROTECTED] 10/14/04 9:59 AM Hello! I'm having an interesting problem wherein about 5-10% of the time, for no apparent reason whatsover, the MySQL driver just can not be found. I have a symlink to it in TOMCAT_DIR/common/lib. I just replaced the symlink with a copy of the actual library to see if that would make a difference, but it doesn't make sense that it would work 90-95% of the time and then fail the rest of the time if that were the problem. The traceback I get is as follows: // NOTE: replaced org.apache. with ''. Cannot load JDBC driver class 'com.mysql.jdbc.jdbc2.optional.MysqlDataSource' java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java: 854) at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java: 721) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:141) at commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760) at commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at RequestFilterServlet.getUrlMapping(RequestFilterServlet.java:187) at RequestFilterServlet.doFilter(RequestFilterServlet.java:277) at catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilter Chai n.java:186) at catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.ja va:1 57) at catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardContextValve.invokeInternal(StandardContextValve. java :198) at catalina.core.StandardContextValve.invoke(StandardContextValve.java:144 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 ) at catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :102 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.ContainerBase.invoke(ContainerBase.java:929) at coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300) at jk.common.HandlerRequest.invoke(HandlerRequest.java:374) at jk.common.ChannelSocket.invoke(ChannelSocket.java:743) at jk.common.ChannelSocket.processConnection(ChannelSocket.java:675) at jk.common.SocketConnection.runIt(ChannelSocket.java:866) at tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) at java.lang.Thread.run(Thread.java:534) Any suggestions welcome. Thanks. --Kaleb PS: I'm using tomcat 5.0.28 and version 3.0.15 of the MySQL connector. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: MySQL driver randomly not found?
Interesting question...how does that impact classloading? [EMAIL PROTECTED] 10/14/04 10:15 AM Hi, Does it happen without the connectors/Apache in front? Yoav Shapira http://www.yoavshapira.com -Original Message- From: Larry Meadors [mailto:[EMAIL PROTECTED] Sent: Thursday, October 14, 2004 12:13 PM To: [EMAIL PROTECTED] Subject: Re: MySQL driver randomly not found? Just curious...Why are you using a symlink? [EMAIL PROTECTED] 10/14/04 9:59 AM Hello! I'm having an interesting problem wherein about 5-10% of the time, for no apparent reason whatsover, the MySQL driver just can not be found. I have a symlink to it in TOMCAT_DIR/common/lib. I just replaced the symlink with a copy of the actual library to see if that would make a difference, but it doesn't make sense that it would work 90-95% of the time and then fail the rest of the time if that were the problem. The traceback I get is as follows: // NOTE: replaced org.apache. with ''. Cannot load JDBC driver class 'com.mysql.jdbc.jdbc2.optional.MysqlDataSource' java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java: 854) at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java: 721) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:141) at commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760) at commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at RequestFilterServlet.getUrlMapping(RequestFilterServlet.java:187) at RequestFilterServlet.doFilter(RequestFilterServlet.java:277) at catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilter Chai n.java:186) at catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.ja va:1 57) at catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardContextValve.invokeInternal(StandardContextValve. java :198) at catalina.core.StandardContextValve.invoke(StandardContextValve.java:144 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 ) at catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :102 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.ContainerBase.invoke(ContainerBase.java:929) at coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300) at jk.common.HandlerRequest.invoke(HandlerRequest.java:374) at jk.common.ChannelSocket.invoke(ChannelSocket.java:743) at jk.common.ChannelSocket.processConnection(ChannelSocket.java:675) at jk.common.SocketConnection.runIt(ChannelSocket.java:866) at tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) at java.lang.Thread.run(Thread.java:534) Any suggestions welcome. Thanks. --Kaleb PS: I'm using tomcat 5.0.28 and version 3.0.15 of the MySQL connector. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED
RE: MySQL driver randomly not found?
Hi, It might not, but it's always a question, because it's part of the KISS principle. The simpler the environment, the easier it is for the OP to test and for others to reproduce the OP's test results. The less moving pieces, the less chance for error. Yoav Shapira http://www.yoavshapira.com -Original Message- From: Larry Meadors [mailto:[EMAIL PROTECTED] Sent: Thursday, October 14, 2004 12:38 PM To: [EMAIL PROTECTED] Subject: RE: MySQL driver randomly not found? Interesting question...how does that impact classloading? [EMAIL PROTECTED] 10/14/04 10:15 AM Hi, Does it happen without the connectors/Apache in front? Yoav Shapira http://www.yoavshapira.com -Original Message- From: Larry Meadors [mailto:[EMAIL PROTECTED] Sent: Thursday, October 14, 2004 12:13 PM To: [EMAIL PROTECTED] Subject: Re: MySQL driver randomly not found? Just curious...Why are you using a symlink? [EMAIL PROTECTED] 10/14/04 9:59 AM Hello! I'm having an interesting problem wherein about 5-10% of the time, for no apparent reason whatsover, the MySQL driver just can not be found. I have a symlink to it in TOMCAT_DIR/common/lib. I just replaced the symlink with a copy of the actual library to see if that would make a difference, but it doesn't make sense that it would work 90-95% of the time and then fail the rest of the time if that were the problem. The traceback I get is as follows: // NOTE: replaced org.apache. with ''. Cannot load JDBC driver class 'com.mysql.jdbc.jdbc2.optional.MysqlDataSource' java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java : 854) at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java : 721) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:141) at commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760 ) at commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at RequestFilterServlet.getUrlMapping(RequestFilterServlet.java:187) at RequestFilterServlet.doFilter(RequestFilterServlet.java:277) at catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilte r Chai n.java:186) at catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.j a va:1 57) at catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:21 4 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardContextValve.invokeInternal(StandardContextValve . java :198) at catalina.core.StandardContextValve.invoke(StandardContextValve.java:14 4 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :102 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.ContainerBase.invoke(ContainerBase.java:929) at coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300) at jk.common.HandlerRequest.invoke(HandlerRequest.java:374) at jk.common.ChannelSocket.invoke(ChannelSocket.java:743) at jk.common.ChannelSocket.processConnection(ChannelSocket.java:675) at jk.common.SocketConnection.runIt(ChannelSocket.java:866) at tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683 ) at java.lang.Thread.run(Thread.java:534) Any suggestions welcome. Thanks. --Kaleb PS: I'm using tomcat 5.0.28 and version 3.0.15 of the MySQL connector. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended
RE: MySQL driver randomly not found?
Hahah, similar reasoning wth my symlink question...shouldn't matter, but... [EMAIL PROTECTED] 10/14/04 10:47 AM Hi, It might not, but it's always a question, because it's part of the KISS principle. The simpler the environment, the easier it is for the OP to test and for others to reproduce the OP's test results. The less moving pieces, the less chance for error. Yoav Shapira http://www.yoavshapira.com -Original Message- From: Larry Meadors [mailto:[EMAIL PROTECTED] Sent: Thursday, October 14, 2004 12:38 PM To: [EMAIL PROTECTED] Subject: RE: MySQL driver randomly not found? Interesting question...how does that impact classloading? [EMAIL PROTECTED] 10/14/04 10:15 AM Hi, Does it happen without the connectors/Apache in front? Yoav Shapira http://www.yoavshapira.com -Original Message- From: Larry Meadors [mailto:[EMAIL PROTECTED] Sent: Thursday, October 14, 2004 12:13 PM To: [EMAIL PROTECTED] Subject: Re: MySQL driver randomly not found? Just curious...Why are you using a symlink? [EMAIL PROTECTED] 10/14/04 9:59 AM Hello! I'm having an interesting problem wherein about 5-10% of the time, for no apparent reason whatsover, the MySQL driver just can not be found. I have a symlink to it in TOMCAT_DIR/common/lib. I just replaced the symlink with a copy of the actual library to see if that would make a difference, but it doesn't make sense that it would work 90-95% of the time and then fail the rest of the time if that were the problem. The traceback I get is as follows: // NOTE: replaced org.apache. with ''. Cannot load JDBC driver class 'com.mysql.jdbc.jdbc2.optional.MysqlDataSource' java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java : 854) at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java : 721) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:141) at commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760 ) at commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at RequestFilterServlet.getUrlMapping(RequestFilterServlet.java:187) at RequestFilterServlet.doFilter(RequestFilterServlet.java:277) at catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilte r Chai n.java:186) at catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.j a va:1 57) at catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:21 4 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardContextValve.invokeInternal(StandardContextValve . java :198) at catalina.core.StandardContextValve.invoke(StandardContextValve.java:14 4 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :102 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.ContainerBase.invoke(ContainerBase.java:929) at coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300) at jk.common.HandlerRequest.invoke(HandlerRequest.java:374) at jk.common.ChannelSocket.invoke(ChannelSocket.java:743) at jk.common.ChannelSocket.processConnection(ChannelSocket.java:675) at jk.common.SocketConnection.runIt(ChannelSocket.java:866) at tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683 ) at java.lang.Thread.run(Thread.java:534) Any suggestions welcome. Thanks. --Kaleb PS: I'm using tomcat 5.0.28 and version 3.0.15 of the MySQL connector. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business
Re: MySQL driver randomly not found?
On Thursday 14 October 2004 9:13 am, Larry Meadors wrote: Just curious...Why are you using a symlink? I'm setting it up so that I can have multiple instances of tomcat running and I don't want many different copies of the files floating around if at all possible. It also makes it easy for me to perform upgrades on tomcat etc. when I use symlinks to some of the files (app specific) that don't change. --Kaleb [EMAIL PROTECTED] 10/14/04 9:59 AM Hello! I'm having an interesting problem wherein about 5-10% of the time, for no apparent reason whatsover, the MySQL driver just can not be found. I have a symlink to it in TOMCAT_DIR/common/lib. I just replaced the symlink with a copy of the actual library to see if that would make a difference, but it doesn't make sense that it would work 90-95% of the time and then fail the rest of the time if that were the problem. The traceback I get is as follows: // NOTE: replaced org.apache. with ''. Cannot load JDBC driver class 'com.mysql.jdbc.jdbc2.optional.MysqlDataSource' java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:854) at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:721) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:141) at commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760) at commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at RequestFilterServlet.getUrlMapping(RequestFilterServlet.java:187) at RequestFilterServlet.doFilter(RequestFilterServlet.java:277) at catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChai n.java:186) at catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:1 57) at catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java :198) at catalina.core.StandardContextValve.invoke(StandardContextValve.java:144) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104 ) at catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.ContainerBase.invoke(ContainerBase.java:929) at coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300) at jk.common.HandlerRequest.invoke(HandlerRequest.java:374) at jk.common.ChannelSocket.invoke(ChannelSocket.java:743) at jk.common.ChannelSocket.processConnection(ChannelSocket.java:675) at jk.common.SocketConnection.runIt(ChannelSocket.java:866) at tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) at java.lang.Thread.run(Thread.java:534) Any suggestions welcome. Thanks. --Kaleb PS: I'm using tomcat 5.0.28 and version 3.0.15 of the MySQL connector. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: MySQL driver randomly not found?
On Thursday 14 October 2004 9:15 am, Shapira, Yoav wrote: Does it happen without the connectors/Apache in front? I'll see if I can reproduce it on my test server without the AJP connector and Apache. Thanks. --Kaleb Yoav Shapira http://www.yoavshapira.com -Original Message- From: Larry Meadors [mailto:[EMAIL PROTECTED] Sent: Thursday, October 14, 2004 12:13 PM To: [EMAIL PROTECTED] Subject: Re: MySQL driver randomly not found? Just curious...Why are you using a symlink? [EMAIL PROTECTED] 10/14/04 9:59 AM Hello! I'm having an interesting problem wherein about 5-10% of the time, for no apparent reason whatsover, the MySQL driver just can not be found. I have a symlink to it in TOMCAT_DIR/common/lib. I just replaced the symlink with a copy of the actual library to see if that would make a difference, but it doesn't make sense that it would work 90-95% of the time and then fail the rest of the time if that were the problem. The traceback I get is as follows: // NOTE: replaced org.apache. with ''. Cannot load JDBC driver class 'com.mysql.jdbc.jdbc2.optional.MysqlDataSource' java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java: 854) at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java: 721) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:141) at commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760) at commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at RequestFilterServlet.getUrlMapping(RequestFilterServlet.java:187) at RequestFilterServlet.doFilter(RequestFilterServlet.java:277) at catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilter Chai n.java:186) at catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.ja va:1 57) at catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 : ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardContextValve.invokeInternal(StandardContextValve. java :198) at catalina.core.StandardContextValve.invoke(StandardContextValve.java:144 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 : ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 : ) at catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :102 : ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.java :104 : ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.ContainerBase.invoke(ContainerBase.java:929) at coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300) at jk.common.HandlerRequest.invoke(HandlerRequest.java:374) at jk.common.ChannelSocket.invoke(ChannelSocket.java:743) at jk.common.ChannelSocket.processConnection(ChannelSocket.java:675) at jk.common.SocketConnection.runIt(ChannelSocket.java:866) at tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) at java.lang.Thread.run(Thread.java:534) Any suggestions welcome. Thanks. --Kaleb PS: I'm using tomcat 5.0.28 and version 3.0.15 of the MySQL connector. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender
Re: MySQL driver randomly not found?
In my experience, the driver in driverClassName should be a Driver class as in com.mysql.jdbc.Driver, not a Datasource like com.mysql.jdbc.jdbc2.optional.MysqlDataSource. However, individual mileage may vary. ;-) --David Larry Meadors wrote: Hahah, similar reasoning wth my symlink question...shouldn't matter, but... [EMAIL PROTECTED] 10/14/04 10:47 AM Hi, It might not, but it's always a question, because it's part of the KISS principle. The simpler the environment, the easier it is for the OP to test and for others to reproduce the OP's test results. The less moving pieces, the less chance for error. Yoav Shapira http://www.yoavshapira.com -Original Message- From: Larry Meadors [mailto:[EMAIL PROTECTED] Sent: Thursday, October 14, 2004 12:38 PM To: [EMAIL PROTECTED] Subject: RE: MySQL driver randomly not found? Interesting question...how does that impact classloading? [EMAIL PROTECTED] 10/14/04 10:15 AM Hi, Does it happen without the connectors/Apache in front? Yoav Shapira http://www.yoavshapira.com -Original Message- From: Larry Meadors [mailto:[EMAIL PROTECTED] Sent: Thursday, October 14, 2004 12:13 PM To: [EMAIL PROTECTED] Subject: Re: MySQL driver randomly not found? Just curious...Why are you using a symlink? [EMAIL PROTECTED] 10/14/04 9:59 AM Hello! I'm having an interesting problem wherein about 5-10% of the time, for no apparent reason whatsover, the MySQL driver just can not be found. I have a symlink to it in TOMCAT_DIR/common/lib. I just replaced the symlink with a copy of the actual library to see if that would make a difference, but it doesn't make sense that it would work 90-95% of the time and then fail the rest of the time if that were the problem. The traceback I get is as follows: // NOTE: replaced org.apache. with ''. Cannot load JDBC driver class 'com.mysql.jdbc.jdbc2.optional.MysqlDataSource' java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java : 854) at catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java : 721) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:141) at commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760 ) at commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at RequestFilterServlet.getUrlMapping(RequestFilterServlet.java:187) at RequestFilterServlet.doFilter(RequestFilterServlet.java:277) at catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilte r Chai n.java:186) at catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.j a va:1 57) at catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:21 4 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardContextValve.invokeInternal(StandardContextValve . java :198) at catalina.core.StandardContextValve.invoke(StandardContextValve.java:14 4 ) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :102 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at catalina.core.StandardValveContext.invokeNext(StandardValveContext.jav a :104 ) at catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at catalina.core.ContainerBase.invoke(ContainerBase.java:929) at coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300) at jk.common.HandlerRequest.invoke(HandlerRequest.java:374) at jk.common.ChannelSocket.invoke(ChannelSocket.java:743) at jk.common.ChannelSocket.processConnection(ChannelSocket.java:675) at jk.common.SocketConnection.runIt(ChannelSocket.java:866) at tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683 ) at java.lang.Thread.run(Thread.java:534) Any suggestions welcome. Thanks. --Kaleb PS: I'm using tomcat
