restart tomcat everytime I make change to servlet -- after experiment
OK. seems i am asking a hard question here. But I did some experiment
myself. just to give out more hints to the list to help solving my problem
and I am hoping someone maybe able to help. I am sure someone in the world
will have the same problem and been solved.
here is what i have done. after no luck with my virtual host setting. i am
trying going through tomcat directly via port 8080
* I created a directory under {$tomcat_home}/webapps/ call mytest
* I copied the WEB-INF to the default place {$tomcat_home}/webapps/mytest
* under that i have
drwxr-xr-x2 root root 4096 Sep 3 16:20 classes
-rw-r--r--1 root root 998 Sep 3 16:20 web.xml
* under classes i have
-rw-r--r--1 root root 870 Sep 3 16:39 HelloWorld.class
in {$tomcat_home}/conf/server.xml
i added that
Context path=/mytest docBase=mytest debug=0
reloadable=true crossContext=true
Logger className=org.apache.catalina.logger.FileLogger
prefix=localhost_mytest_log. suffix=.txt
timestamp=true/
/Context
then I can access the HelloWorld servlet by
http://localhost:8080/mytest/HelloWorld
If i made changes on HelloWorld.java, recompile and replace the old
HelloWorld.class with the new one.
I still can see tomcat knows i am making changes
WebappClassLoader: Resource '/WEB-INF/classes/HelloWorld.class' was
modified; Date is now: Wed Sep 03 16:39:54 EST 2003 Was: Wed Sep 03 16:26:11
EST 2003
but after I refresh the http://localhost:8080/mytest/HelloWorld I still get
the bunch of java errors.
first reload saying HTTP Status 500
type Exception report
message
description The server encountered an internal error () that prevented it
from fulfilling this request.
exception SNIP java errors
second reload saying HTTP Status 503 - Servlet HelloWorld is currently
unavailable
type Status report
message Servlet HelloWorld is currently unavailable
description The requested service (Servlet HelloWorld is currently
unavailable) is not currently available.
Then, since I can see mytest under the tomcat manager. I can reload it.
but still the same java errors happened. I had to stop and start mytest
in order to see the changes. But I don't want to do this STOP START ACTION
again and again after every single change of the servlet.
I thought the reloadable=true will handle that.
I don't really want to blame on a bug of tomcat. But would that be possible.
OR has anyone in the world has done what I want to do without using any
tools like the tomcat manager? I am greatly appreciated for any help.
THANKS.
I am going to pull all my hair out... : (
Cheers,
Clive
-
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Vedr.: restart tomcat everytime I make change to servlet -- afterexperiment
There was a thread the other day about the same issue I think. Two persons
answered:
Tim Funk replied:
YOu mean this?
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=22096
-Tim
And John Wigfield replied:
Have you applied the hotfix?
http://hillman-family.net/dist/jakarta/tomcat-4/binaries/
Their answers helped the other guy and will also probably do the job for
you.
/Thomas
Clive Luk [EMAIL PROTECTED]
03-09-03 09:07
Besvar venligst til Tomcat Users List
Til:Tomcat Users List [EMAIL PROTECTED]
cc:
Vedr.: restart tomcat everytime I make change to servlet -- after experiment
OK. seems i am asking a hard question here. But I did some experiment
myself. just to give out more hints to the list to help solving my problem
and I am hoping someone maybe able to help. I am sure someone in the world
will have the same problem and been solved.
here is what i have done. after no luck with my virtual host setting. i am
trying going through tomcat directly via port 8080
* I created a directory under {$tomcat_home}/webapps/ call mytest
* I copied the WEB-INF to the default place {$tomcat_home}/webapps/mytest
* under that i have
drwxr-xr-x2 root root 4096 Sep 3 16:20 classes
-rw-r--r--1 root root 998 Sep 3 16:20 web.xml
* under classes i have
-rw-r--r--1 root root 870 Sep 3 16:39 HelloWorld.class
in {$tomcat_home}/conf/server.xml
i added that
Context path=/mytest docBase=mytest debug=0
reloadable=true crossContext=true
Logger className=org.apache.catalina.logger.FileLogger
prefix=localhost_mytest_log. suffix=.txt
timestamp=true/
/Context
then I can access the HelloWorld servlet by
http://localhost:8080/mytest/HelloWorld
If i made changes on HelloWorld.java, recompile and replace the old
HelloWorld.class with the new one.
I still can see tomcat knows i am making changes
WebappClassLoader: Resource '/WEB-INF/classes/HelloWorld.class' was
modified; Date is now: Wed Sep 03 16:39:54 EST 2003 Was: Wed Sep 03
16:26:11
EST 2003
but after I refresh the http://localhost:8080/mytest/HelloWorld I still get
the bunch of java errors.
first reload saying HTTP Status 500
type Exception report
message
description The server encountered an internal error () that prevented it
from fulfilling this request.
exception SNIP java errors
second reload saying HTTP Status 503 - Servlet HelloWorld is currently
unavailable
type Status report
message Servlet HelloWorld is currently unavailable
description The requested service (Servlet HelloWorld is currently
unavailable) is not currently available.
Then, since I can see mytest under the tomcat manager. I can reload it.
but still the same java errors happened. I had to stop and start
mytest
in order to see the changes. But I don't want to do this STOP START ACTION
again and again after every single change of the servlet.
I thought the reloadable=true will handle that.
I don't really want to blame on a bug of tomcat. But would that be
possible.
OR has anyone in the world has done what I want to do without using any
tools like the tomcat manager? I am greatly appreciated for any help.
THANKS.
I am going to pull all my hair out... : (
Cheers,
Clive
-
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RE: restart tomcat everytime I make change to servlet
Did you apply the hotfix, that is specifically for class reloading issues in 4.1.27 ? -Original Message- From: Clive Luk [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 9:13 PM To: [EMAIL PROTECTED] Subject: RE: restart tomcat everytime I make change to servlet snip / Could that be a problem of I am using a binary of tomcat? i am using tomcat 4.1.27 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: restart tomcat everytime I make change to servlet -- after experiment
Don't pull out your hair, check my reply to your first post... (class reloading is buggy in Tomcat 4.1.27) -Original Message- From: Clive Luk [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 2:07 AM To: Tomcat Users List Subject: restart tomcat everytime I make change to servlet -- after experiment snip / I don't really want to blame on a bug of tomcat. But would that be possible. OR has anyone in the world has done what I want to do without using any tools like the tomcat manager? I am greatly appreciated for any help. THANKS. I am going to pull all my hair out... : ( Cheers, Clive - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Antwort: RE: restart tomcat everytime I make change to servlet -- afterexperiment
do you know if it is fixed in 5.0.9? Mail von Extern Mike Curwen [EMAIL PROTECTED] 03.09.2003 15:48 Bitte antworten an Tomcat Users List An: 'Tomcat Users List' [EMAIL PROTECTED], [EMAIL PROTECTED] Kopie: Thema: RE: restart tomcat everytime I make change to servlet -- after experiment Don't pull out your hair, check my reply to your first post... (class reloading is buggy in Tomcat 4.1.27) -Original Message- From: Clive Luk [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 2:07 AM To: Tomcat Users List Subject: restart tomcat everytime I make change to servlet -- after experiment snip / I don't really want to blame on a bug of tomcat. But would that be possible. OR has anyone in the world has done what I want to do without using any tools like the tomcat manager? I am greatly appreciated for any help. THANKS. I am going to pull all my hair out... : ( Cheers, Clive - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: restart tomcat everytime I make change to servlet [solved]
Hi all, Thank you for all the replies. I have applied the hotfix last night. it WORKS! thanks for all. that was just a bug. i can save my hair for next time. : ) Cheers, Clive -Original Message- From: Mike Curwen [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 11:46 PM To: 'Tomcat Users List'; [EMAIL PROTECTED] Subject: RE: restart tomcat everytime I make change to servlet Did you apply the hotfix, that is specifically for class reloading issues in 4.1.27 ? -Original Message- From: Clive Luk [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 9:13 PM To: [EMAIL PROTECTED] Subject: RE: restart tomcat everytime I make change to servlet snip / Could that be a problem of I am using a binary of tomcat? i am using tomcat 4.1.27 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
restart tomcat everytime I make change to servlet
Hi list, I have come up another problem with making changes on servlet. Hope someone can give me a hand on that. This is how I do it. 1. make changes to servlet1.java 2. javac servlet1.java 3. copy the servlet1.class to /whatever/WEB-INF/classes The problem is I don't have any problem running tomcat. Until I overwrite an old version of servlet with an new one. Everything seems gone wrong. I will get HTTP status 500 to the servlet I changed. If I reload the page again. I will get 503 Servlet servlet1 is currently unavailable. If I try other servlet that I didn't change I will get the same error. Please help. Thanks in advance. Cheers, Clive - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: restart tomcat everytime I make change to servlet
you will need to restart the context I believe, but if you truly want this functionality, put your servlet code in a JSP Filip - Original Message - From: Clive Luk [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 5:13 PM Subject: restart tomcat everytime I make change to servlet Hi list, I have come up another problem with making changes on servlet. Hope someone can give me a hand on that. This is how I do it. 1. make changes to servlet1.java 2. javac servlet1.java 3. copy the servlet1.class to /whatever/WEB-INF/classes The problem is I don't have any problem running tomcat. Until I overwrite an old version of servlet with an new one. Everything seems gone wrong. I will get HTTP status 500 to the servlet I changed. If I reload the page again. I will get 503 Servlet servlet1 is currently unavailable. If I try other servlet that I didn't change I will get the same error. Please help. Thanks in advance. Cheers, Clive - 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: restart tomcat everytime I make change to servlet
(StandardWrapper.java:88 5) at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:668) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja va:210) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja va:191) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(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.StandardContext.invoke(StandardContext.java:2416) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180 ) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve. java:171) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:641) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172 ) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(StandardPipeline.java:641) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java :174) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok eNext(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.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:263) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:360) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:604) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:562) at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:679) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav a:619) at java.lang.Thread.run(Thread.java:534) Cheers, Clive -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 10:22 AM To: Tomcat Users List; [EMAIL PROTECTED] Subject: Re: restart tomcat everytime I make change to servlet you will need to restart the context I believe, but if you truly want this functionality, put your servlet code in a JSP Filip - Original Message - From: Clive Luk [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 5:13 PM Subject: restart tomcat everytime I make change to servlet Hi list, I have come up another problem with making changes on servlet. Hope someone can give me a hand on that. This is how I do it. 1. make changes to servlet1.java 2. javac servlet1.java 3. copy the servlet1.class to /whatever/WEB-INF/classes The problem is I don't have any problem running tomcat. Until I overwrite an old version of servlet with an new one. Everything seems gone wrong. I will get HTTP status 500 to the servlet I changed. If I reload the page again. I will get 503 Servlet servlet1 is currently unavailable. If I try other servlet that I didn't change I will get the same error. Please help. Thanks in advance. Cheers, Clive - 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: restart tomcat everytime I make change to servlet
Filip, But the servlet is sitting in one of the virtual host i setup. I can't see my virtual host setting in my tomcat manager. I only see the default setting in the manager. is there any other way? Cheers, Clive -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 11:38 AM To: [EMAIL PROTECTED] Subject: Re: restart tomcat everytime I make change to servlet using ANT or the admin webapp will let you do that. http://jakarta.apache.org/tomcat/tomcat-4.1-doc/manager-howto.html - Original Message - From: Clive Luk [EMAIL PROTECTED] To: Filip Hanik [EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 5:24 PM Subject: RE: restart tomcat everytime I make change to servlet Hi Filip, Thanks for the reply. How do I restart the context without restarting tomcat? does that mean if i make any changes to servlet i will have to restart something? sorry i am only new in tomcat. Cheers, Clive -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 10:22 AM To: Tomcat Users List; [EMAIL PROTECTED] Subject: Re: restart tomcat everytime I make change to servlet you will need to restart the context I believe, but if you truly want this functionality, put your servlet code in a JSP Filip - Original Message - From: Clive Luk [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 5:13 PM Subject: restart tomcat everytime I make change to servlet Hi list, I have come up another problem with making changes on servlet. Hope someone can give me a hand on that. This is how I do it. 1. make changes to servlet1.java 2. javac servlet1.java 3. copy the servlet1.class to /whatever/WEB-INF/classes The problem is I don't have any problem running tomcat. Until I overwrite an old version of servlet with an new one. Everything seems gone wrong. I will get HTTP status 500 to the servlet I changed. If I reload the page again. I will get 503 Servlet servlet1 is currently unavailable. If I try other servlet that I didn't change I will get the same error. Please help. Thanks in advance. Cheers, Clive - 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: restart tomcat everytime I make change to servlet
hmm, maybe this http://raibledesigns.com/wiki/Wiki.jsp?page=TomcatAntTasks Filip - Original Message - From: Clive Luk [EMAIL PROTECTED] To: Filip Hanik [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 6:55 PM Subject: RE: restart tomcat everytime I make change to servlet Filip, But the servlet is sitting in one of the virtual host i setup. I can't see my virtual host setting in my tomcat manager. I only see the default setting in the manager. is there any other way? Cheers, Clive -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 11:38 AM To: [EMAIL PROTECTED] Subject: Re: restart tomcat everytime I make change to servlet using ANT or the admin webapp will let you do that. http://jakarta.apache.org/tomcat/tomcat-4.1-doc/manager-howto.html - Original Message - From: Clive Luk [EMAIL PROTECTED] To: Filip Hanik [EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 5:24 PM Subject: RE: restart tomcat everytime I make change to servlet Hi Filip, Thanks for the reply. How do I restart the context without restarting tomcat? does that mean if i make any changes to servlet i will have to restart something? sorry i am only new in tomcat. Cheers, Clive -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 10:22 AM To: Tomcat Users List; [EMAIL PROTECTED] Subject: Re: restart tomcat everytime I make change to servlet you will need to restart the context I believe, but if you truly want this functionality, put your servlet code in a JSP Filip - Original Message - From: Clive Luk [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 5:13 PM Subject: restart tomcat everytime I make change to servlet Hi list, I have come up another problem with making changes on servlet. Hope someone can give me a hand on that. This is how I do it. 1. make changes to servlet1.java 2. javac servlet1.java 3. copy the servlet1.class to /whatever/WEB-INF/classes The problem is I don't have any problem running tomcat. Until I overwrite an old version of servlet with an new one. Everything seems gone wrong. I will get HTTP status 500 to the servlet I changed. If I reload the page again. I will get 503 Servlet servlet1 is currently unavailable. If I try other servlet that I didn't change I will get the same error. Please help. Thanks in advance. Cheers, Clive - 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: restart tomcat everytime I make change to servlet
Thanks for your quick reply, I have search around on the web. some people said you only put the reloadable=true in the Context tag that' will solve the problem. But i still have no luck. The follwoing is my virtual host setting in server.xml. But I still got the error. if you look at my previous post for the logs. Thanks again. Could that be a problem of I am using a binary of tomcat? i am using tomcat 4.1.27 Host name=catch.mine.nu debug=1 appBase=/web/domain/htdocs unpackWARs=true autoDeploy=true Logger className=org.apache.catalina.logger.FileLogger directory=logs prefix=domain_com. suffix=.log timestamp=true/ Context path= docBase= debug=0 reloadable=true Logger className=org.apache.catalina.logger.FileLogger prefix=domain. suffix=.log timestamp=true / Resource name=mail/Session auth=Container type=javax.mail.Session/ ResourceParams name=mail/Session parameter namemail.smtp.host/name valuelocalhost/value /parameter /ResourceParams /Context /Host Cheers, Clive -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 12:03 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: restart tomcat everytime I make change to servlet hmm, maybe this http://raibledesigns.com/wiki/Wiki.jsp?page=TomcatAntTasks Filip - Original Message - From: Clive Luk [EMAIL PROTECTED] To: Filip Hanik [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 6:55 PM Subject: RE: restart tomcat everytime I make change to servlet Filip, But the servlet is sitting in one of the virtual host i setup. I can't see my virtual host setting in my tomcat manager. I only see the default setting in the manager. is there any other way? Cheers, Clive -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 11:38 AM To: [EMAIL PROTECTED] Subject: Re: restart tomcat everytime I make change to servlet using ANT or the admin webapp will let you do that. http://jakarta.apache.org/tomcat/tomcat-4.1-doc/manager-howto.html - Original Message - From: Clive Luk [EMAIL PROTECTED] To: Filip Hanik [EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 5:24 PM Subject: RE: restart tomcat everytime I make change to servlet Hi Filip, Thanks for the reply. How do I restart the context without restarting tomcat? does that mean if i make any changes to servlet i will have to restart something? sorry i am only new in tomcat. Cheers, Clive -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2003 10:22 AM To: Tomcat Users List; [EMAIL PROTECTED] Subject: Re: restart tomcat everytime I make change to servlet you will need to restart the context I believe, but if you truly want this functionality, put your servlet code in a JSP Filip - Original Message - From: Clive Luk [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 5:13 PM Subject: restart tomcat everytime I make change to servlet Hi list, I have come up another problem with making changes on servlet. Hope someone can give me a hand on that. This is how I do it. 1. make changes to servlet1.java 2. javac servlet1.java 3. copy the servlet1.class to /whatever/WEB-INF/classes The problem is I don't have any problem running tomcat. Until I overwrite an old version of servlet with an new one. Everything seems gone wrong. I will get HTTP status 500 to the servlet I changed. If I reload the page again. I will get 503 Servlet servlet1 is currently unavailable. If I try other servlet that I didn't change I will get the same error. Please help. Thanks in advance. Cheers, Clive - 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]
