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Tomcat 6 Hot Deploy Issue
Hi I am using Java 6 64-bit and STANDALONE Tomcat 6.0.18 on Vista 64-bit. I am working on a web application with struts and tiles. Now when I make changes to my java or jsp files, they are not visible when I reload the page. I have to manually reload the web app to see the changes. My web app configuration is as follows:
$CATALINA_BASE/conf/Catalina/localhost/dashboard.xml<Context docBase="D:/mydata/projects/PatchworkSystems/development/Dashboard/webapp"
path="/dashboard" reloadable="true" antiJARLocking="true" antiResourceLocking="true" debug="1" />
Any help is greatly appreciated. Thanks Quadir -- ************************************************************************************ 9.71 # The believers, men and women, are Auliyâ' (helpers, supporters, friends, protectors) of one another, they enjoin (on the people) Al-Ma'rûf (i.e. Islâmic Monotheism and all that Islâm orders one to do), and forbid (people) from Al-Munkar (i.e. polytheism and disbelief of all kinds, and all that Islâm has forbidden); they perform As-Salât (Iqâmat-as-Salât) and give the Zakât, and obey Allâh and His Messenger. Allâh will have His Mercy on them. Surely Allâh is All-Mighty, All-Wise.
9.72 Allâh has promised to the believers -men and women, - Gardens under which rivers flow to dwell therein forever, and beautiful mansions in Gardens of 'Adn (Eden Paradise). But the greatest bliss is the Good Pleasure of Allâh. That is the supreme success.
-- Qur'an Chapter 3 Verses 185-186 ************************************************************************************
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Re: Tomcat 6 Hot Deploy Issue
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Re: Tomcat 6 Hot Deploy Issue
I am using Eclipse, but I believe it is irrelevant since Tomcat is running STANDALONE outside Eclipse. - Quadir -- ************************************************************************************ 9.71 # The believers, men and women, are Auliyâ' (helpers, supporters, friends, protectors) of one another, they enjoin (on the people) Al-Ma'rûf (i.e. Islâmic Monotheism and all that Islâm orders one to do), and forbid (people) from Al-Munkar (i.e. polytheism and disbelief of all kinds, and all that Islâm has forbidden); they perform As-Salât (Iqâmat-as-Salât) and give the Zakât, and obey Allâh and His Messenger. Allâh will have His Mercy on them. Surely Allâh is All-Mighty, All-Wise.
9.72 Allâh has promised to the believers -men and women, - Gardens under which rivers flow to dwell therein forever, and beautiful mansions in Gardens of 'Adn (Eden Paradise). But the greatest bliss is the Good Pleasure of Allâh. That is the supreme success.
-- Qur'an Chapter 3 Verses 185-186 ************************************************************************************
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Re: Tomcat 6 Hot Deploy Issue
I don't have a tomcat in front of me, but Tomcat is supposed to notice when a JSP file has changed and re-compile it. However, Java changes will need to result in a restart since those class files are loaded into the JVM's Permanent Generation memory when they're used. That's one of the beauties of using a fully baked Application Server like Glassfish or JBoss: It makes the hot-deploy a lot cleaner.
Now, when you make changes, are you changing the files directly in the exploded war? Are you making changes else where then merging it in?
For the JSP issue, an overkill way to handle this is any time you make JSP changes, you can delete Tomcat's working directory. This will get rid of all the compiled JSPs and force Tomcat to do it over.
As for the Java issues, you will need to redeploy the whole War file. From my experience, deleting the exploded and compressed war files then copying the new one into the webapps directory is enough.
I hope some of that helps! On Sun, May 24, 2009 at 9:11 PM, Quadir Kareemullah <quadir@...> wrote:
I am using Eclipse, but I believe it is irrelevant since Tomcat is running STANDALONE outside Eclipse.
- Quadir--
************************************************************************************
9.71 # The believers, men and women, are Auliyâ' (helpers, supporters, friends, protectors) of one another, they enjoin (on the people) Al-Ma'rûf (i.e. Islâmic Monotheism and all that Islâm orders one to do), and forbid (people) from Al-Munkar (i.e. polytheism and disbelief of all kinds, and all that Islâm has forbidden); they perform As-Salât (Iqâmat-as-Salât) and give the Zakât, and obey Allâh and His Messenger. Allâh will have His Mercy on them. Surely Allâh is All-Mighty, All-Wise.
9.72 Allâh has promised to the believers -men and women, - Gardens under which rivers flow to dwell therein forever, and beautiful mansions in Gardens of 'Adn (Eden Paradise). But the greatest bliss is the Good Pleasure of Allâh. That is the supreme success.
-- Qur'an Chapter 3 Verses 185-186
************************************************************************************
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Re: Tomcat 6 Hot Deploy Issue
Well, yes, but I think Jennifer was asking since that might affect where the IDE compiles the code out to. That might affect the directory you would want to refer to as the base. Regarding the hot deployment though here's what the Tomcat docs say about reloadable:
Set to true if you want Catalina to monitor classes in
/WEB-INF/classes/ and /WEB-INF/lib for
changes, and automatically reload the web application if a change
is detected. This feature is very useful during application
development, but it requires significant runtime overhead and is
not recommended for use on deployed production applications. That's
why the default setting for this attribute is false. You
can use the Manager web
application, however, to trigger reloads of deployed applications
on demand. So I don't think it'll pick up your jsp changes anyway unless your build script in Eclipse includes a JSP pre-compiler. Anyway, best of luck with it. -Marty
On Sun, May 24, 2009 at 9:11 PM, Quadir Kareemullah <quadir@...> wrote:
I am using Eclipse, but I believe it is irrelevant since Tomcat is running STANDALONE outside Eclipse.
- Quadir--
************************************************************************************
9.71 # The believers, men and women, are Auliyâ' (helpers, supporters, friends, protectors) of one another, they enjoin (on the people) Al-Ma'rûf (i.e. Islâmic Monotheism and all that Islâm orders one to do), and forbid (people) from Al-Munkar (i.e. polytheism and disbelief of all kinds, and all that Islâm has forbidden); they perform As-Salât (Iqâmat-as-Salât) and give the Zakât, and obey Allâh and His Messenger. Allâh will have His Mercy on them. Surely Allâh is All-Mighty, All-Wise.
9.72 Allâh has promised to the believers -men and women, - Gardens under which rivers flow to dwell therein forever, and beautiful mansions in Gardens of 'Adn (Eden Paradise). But the greatest bliss is the Good Pleasure of Allâh. That is the supreme success.
-- Qur'an Chapter 3 Verses 185-186
************************************************************************************
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Re: Tomcat 6 Hot Deploy Issue
Thank you all for replying. I found the correct answer to this at http://stackoverflow.com where I posted the question. Here is the link to the Question and the Answer http://stackoverflow.com/questions/904877/tomcat-6-hot-deploy-issue
It's because of a side effect with having antiResourceLocking="true"
set on your context. If you read the documentation on Tomcat here:http://tomcat.apache.org/tomcat-5.5-doc/config/context.html
"Please note that setting this to true
has some side effects, including the
disabling of JSP reloading in a
running server: see Bugzilla 37668."
which is here: https://issues.apache.org/bugzilla/show_bug.cgi?id=37668 There is no workaround as far as I know, if you remove the attribute
it will allow you automatic loading of yor JSP's again. We set a deploy
time subtitution to put the attribute back in for production. Boo,
hiss! Anyways if you remove the antiResourceLocking attribute it will
solve the problem you're experiencing.
- Quadir On Mon, May 25, 2009 at 11:29 AM, Marty Blood <marty.blood@...> wrote:
Well, yes, but I think Jennifer was asking since that might affect where the IDE compiles the code out to. That might affect the directory you would want to refer to as the base.
Regarding the hot deployment though here's what the Tomcat docs say about reloadable:
Set to true if you want Catalina to monitor classes in
/WEB-INF/classes/ and /WEB-INF/lib for
changes, and automatically reload the web application if a change
is detected. This feature is very useful during application
development, but it requires significant runtime overhead and is
not recommended for use on deployed production applications. That's
why the default setting for this attribute is false. You
can use the Manager web
application, however, to trigger reloads of deployed applications
on demand.
So I don't think it'll pick up your jsp changes anyway unless your build script in Eclipse includes a JSP pre-compiler.
Anyway, best of luck with it.
-Marty
On Sun, May 24, 2009 at 9:11 PM, Quadir Kareemullah <quadir@...> wrote:
I am using Eclipse, but I believe it is irrelevant since Tomcat is running STANDALONE outside Eclipse.
- Quadir--
************************************************************************************
9.71 # The believers, men and women, are Auliyâ' (helpers, supporters, friends, protectors) of one another, they enjoin (on the people) Al-Ma'rûf (i.e. Islâmic Monotheism and all that Islâm orders one to do), and forbid (people) from Al-Munkar (i.e. polytheism and disbelief of all kinds, and all that Islâm has forbidden); they perform As-Salât (Iqâmat-as-Salât) and give the Zakât, and obey Allâh and His Messenger. Allâh will have His Mercy on them. Surely Allâh is All-Mighty, All-Wise.
9.72 Allâh has promised to the believers -men and women, - Gardens under which rivers flow to dwell therein forever, and beautiful mansions in Gardens of 'Adn (Eden Paradise). But the greatest bliss is the Good Pleasure of Allâh. That is the supreme success.
-- Qur'an Chapter 3 Verses 185-186
************************************************************************************
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ajug-members mailing list
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http://www.ajug.org/mailman/listinfo/ajug-members
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ajug-members mailing list
ajug-members@...
http://www.ajug.org/mailman/listinfo/ajug-members
-- ************************************************************************************ 9.71 # The believers, men and women, are Auliyâ' (helpers, supporters, friends, protectors) of one another, they enjoin (on the people) Al-Ma'rûf (i.e. Islâmic Monotheism and all that Islâm orders one to do), and forbid (people) from Al-Munkar (i.e. polytheism and disbelief of all kinds, and all that Islâm has forbidden); they perform As-Salât (Iqâmat-as-Salât) and give the Zakât, and obey Allâh and His Messenger. Allâh will have His Mercy on them. Surely Allâh is All-Mighty, All-Wise.
9.72 Allâh has promised to the believers -men and women, - Gardens under which rivers flow to dwell therein forever, and beautiful mansions in Gardens of 'Adn (Eden Paradise). But the greatest bliss is the Good Pleasure of Allâh. That is the supreme success.
-- Qur'an Chapter 3 Verses 185-186 ************************************************************************************
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ajug-members@...
http://www.ajug.org/mailman/listinfo/ajug-members
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Re: Tomcat 6 Hot Deploy Issue
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Thanks for Q/A.....
Date: Mon, 25 May 2009 13:16:02 -0400 From: quadir@...To: ajug-members@...Subject: Re: [ajug-members] Tomcat 6 Hot Deploy Issue Thank you all for replying. I found the correct answer to this at http://stackoverflow.com where I posted the question. Here is the link to the Question and the Answer http://stackoverflow.com/questions/904877/tomcat-6-hot-deploy-issue
It's because of a side effect with having antiResourceLocking="true" set on your context. If you read the documentation on Tomcat here:
http://tomcat.apache.org/tomcat-5.5-doc/config/context.html
"Please note that setting this to true has some side effects, including the disabling of JSP reloading in a running server: see Bugzilla 37668."
which is here:
https://issues.apache.org/bugzilla/show_bug.cgi?id=37668
There is no workaround as far as I know, if you remove the attribute it will allow you automatic loading of yor JSP's again. We set a deploy time subtitution to put the attribute back in for production. Boo, hiss! Anyways if you remove the antiResourceLocking attribute it will solve the problem you're experiencing.
- Quadir
On Mon, May 25, 2009 at 11:29 AM, Marty Blood <marty.blood@...> wrote:
Well, yes, but I think Jennifer was asking since that might affect where the IDE compiles the code out to. That might affect the directory you would want to refer to as the base.
Regarding the hot deployment though here's what the Tomcat docs say about reloadable:
Set to true if you want Catalina to monitor classes in /WEB-INF/classes/ and /WEB-INF/lib for changes, and automatically reload the web application if a change is detected. This feature is very useful during application development, but it requires significant runtime overhead and is not recommended for use on deployed production applications. That's why the default setting for this attribute is false. You can use the Manager web application, however, to trigger reloads of deployed applications on demand.
So I don't think it'll pick up your jsp changes anyway unless your build script in Eclipse includes a JSP pre-compiler.
Anyway, best of luck with it.
-Marty
On Sun, May 24, 2009 at 9:11 PM, Quadir Kareemullah <quadir@...> wrote:
I am using Eclipse, but I believe it is irrelevant since Tomcat is running STANDALONE outside Eclipse.
- Quadir
--
************************************************************************************
9.71 # The believers, men and women, are Auliyâ' (helpers, supporters, friends, protectors) of one another, they enjoin (on the people) Al-Ma'rûf (i.e. Islâmic Monotheism and all that Islâm orders one to do), and forbid (people) from Al-Munkar (i.e. polytheism and disbelief of all kinds, and all that Islâm has forbidden); they perform As-Salât (Iqâmat-as-Salât) and give the Zakât, and obey Allâh and His Messenger. Allâh will have His Mercy on them. Surely Allâh is All-Mighty, All-Wise.
9.72 Allâh has promised to the believers -men and women, - Gardens under which rivers flow to dwell therein forever, and beautiful mansions in Gardens of 'Adn (Eden Paradise). But the greatest bliss is the Good Pleasure of Allâh. That is the supreme success.
-- Qur'an Chapter 3 Verses 185-186
************************************************************************************
_______________________________________________
ajug-members mailing list
ajug-members@...
http://www.ajug.org/mailman/listinfo/ajug-members
_______________________________________________
ajug-members mailing list
ajug-members@...
http://www.ajug.org/mailman/listinfo/ajug-members
-- ************************************************************************************ 9.71 # The believers, men and women, are Auliyâ' (helpers, supporters, friends, protectors) of one another, they enjoin (on the people) Al-Ma'rûf (i.e. Islâmic Monotheism and all that Islâm orders one to do), and forbid (people) from Al-Munkar (i.e. polytheism and disbelief of all kinds, and all that Islâm has forbidden); they perform As-Salât (Iqâmat-as-Salât) and give the Zakât, and obey Allâh and His Messenger. Allâh will have His Mercy on them. Surely Allâh is All-Mighty, All-Wise. 9.72 Allâh has promised to the believers -men and women, - Gardens under which rivers flow to dwell therein forever, and beautiful mansions in Gardens of 'Adn (Eden Paradise). But the greatest bliss is the Good Pleasure of Allâh. That is the supreme success. -- Qur'an Chapter 3 Verses 185-186 ************************************************************************************
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