Weblogic hot deployment

Hi all,
Does any body know how to redeploy a web application in weblogic without restarting the server?
I have my application in the exploded file format...
Thanks in anticipation,
Seshu

HI,
Thank u for the prompt reply. I am using weblogic 8.1 and i want to know whether there is any Hot Deployment feature in 8.1.
I've gone thru the weblogic 7.0 documentation. It says that the server automatically reloads all the files every x secs. which we can specify in the console.
but doing so doesn;t reflect my changes......
is there any other way? (i've tried touching the REDEPLOY file too)..
Thanks,
Seshu

Similar Messages

Hot deploy in weblogic 10.0 not working

Hi,
I am trying to do hot deploy in an exploded war deployment. If I deploy the same exploded war in weblogic 9.2, I can update the class files without restarting the sever. However, in weblogic 10.0 system throws “java.lang.ClassCastException: com.xxx.xxx.xxxxx” when it tries to reload the app after the old class file has been updated with a new one. If the server is restarted then the new class file is picked without any errors. Are there different settings in weblogic 10.0 to enable hot deploy? Please let me know.
Thanks a lot.

Please don't cross-post.
Cameron Purdy
Tangosol Inc.
Tangosol Coherence: Clustered Coherent Cache for J2EE
Information at http://www.tangosol.com/
"vinayvangala" <[email protected]> wrote in message
news:[email protected]..
Hi,
Did anybody get hot deploy in an expanded directory format to work
in weblogic 6.0 sp2. I have tried to follow the documentation but
couldn't get it to work.
Thanks
Vinay

Exploded (hot) deployment on a Weblogic cluster

AFAIK, exploded hot deployment on a Weblogic cluster is not supported through OEPE.
When deploying an application on a cluster, each change, no matter how small, forces you to republish these changes, ultimately causing the application to be redeployed by OEPE. Turnaround time for this (depending on the app) can take some time.
Is there a workaround available for this ?
I'm looking for a way to minimize the turnaround time between developing code, and actual seeing the code changes on the screen. The requirement however is that deployments should be possible on a managed instance / cluster (non AdminServer).
Does Oracle Weblogic support such "hot deployment" capabilities from an IDE like Eclipse ? Does anybody here have such a process in place ? (perhaps using ant / maven2 tooling)

Hi
I want to clarify that the application has to be deployed to a cluster of two managed servers, amandad_Server_1 (On Windows server hosting console) and amandad_Server_2 which is running in other Windows server.
I deployed the application following your recdommendations and the resulta is as follows:
Windows server (running the console)
1 EAR file was copied to ... \user_projects\domains\amanda_domain\servers\amandad_Server_1\stage
2. The application files extractected from the EAR files were copied to   \user_projects\domains\amanda_domain\servers\amandad_Server_1\tmp
Windows Server not runn ing the console
No files were copied to neither
... \user_projects\domains\amanda_domain\servers\amandad_Server_2\stage
     \user_projects\domains\amanda_domain\servers\amandad_Server_2\tmp
Questions
1 Windows server not running the console the files were not copied....What might cause this behaviour....? how to fixi it...?
2. Do I have to manaully copy the files to folders
...\user_projects\domains\amanda_domain\servers\amandad_Server_2\stage
   ... \user_projects\domains\amanda_domain\servers\amandad_Server_2\tmp

Hot deployment problems with weblogic 7.0 sp2

Hi Guys
I am trying out hot deplyment of a j2ee application on WebLogic Server 7.0 SP2
Approach 1
The application is deployed in exploded ear format from the folder
d:/work/testbed/ear. The appropriate entry in config.xml looks like this.
<Application Deployed="true" Name="Testbed"
Path="D:\tools\bea702\projects\testbed\applications\testbed"
StagedTargets="" TwoPhase="false">
<EJBComponent Name="SessionBeans" Targets="myserver" URI="SessionBeans.jar"/>
</Application>
Creating or touching the REDEPLOY file in META-INF folder doesnt cause hot
deployment to occur
Approach 2
Copied the ear file to the applications folder. Creating or touching the
REDEPLOY file in META-INF file caused the application to be redeployed.
However the weblogic console is constantly spitting out this message.
Undeploying EJB Component SessionBeans
<Sep 29, 2003 9:53:46 PM IST> <Notice> <Application Poller> <149400> <Activating application: Testbed>
<Sep 29, 2003 9:53:46 PM IST> <Notice> <Application Poller> <149404> <Activate application Testbed on myserver - Completed>
Undeploying EJB Component SessionBeans
<Sep 29, 2003 9:53:51 PM IST> <Notice> <Application Poller> <149400> <Activating application: Testbed>
<Sep 29, 2003 9:53:52 PM IST> <Notice> <Application Poller> <149404> <Activate application Testbed on myserver - Completed>
Undeploying EJB Component SessionBeans
<Sep 29, 2003 9:53:57 PM IST> <Notice> <Application Poller> <149400> <Activating application: Testbed>
<Sep 29, 2003 9:53:57 PM IST> <Notice> <Application Poller> <149404> <Activate application Testbed on myserver - Completed>
It seems that the application is getting undeployed and reactivated every 5
seconds.
Questions
1) Any reasons why approach 1 didnt work
2) What could be causing this constant undeployment and reactivation
Thanks for your time
anand

I think I figured out what is causing the application to be redployed every 5
seconds. It seems that if the application is deployed in the weblogic domains
applications folder you should NOT create a <Application element. Weblogic
automatically recognizes all applications in this folder and deploys them.
Removing the application entry (as shown in Approach 1) from the config.xml
and hot deploying by touching the REDEPLOY file did the trick.
One question still remains. Is hot deployment only possible when I copy the
exploded ear to the domain "applications" folder
Thanks for your time
anand
ps : The idea of trying it without the <Application element came from trying
out hot deployment in Weblogic 8. WLS8 first deploys the application in the
applications folder, followed by the application configured in the
<Application element. Since both the applications were essentially the same it
gave me a JNDIException saying that some entity is already bound with the same
name. Weblogic 7 however doesnt complain at this point.
- anand
In article <[email protected]>, Anand Raman wrote:
Hi Guys
I am trying out hot deplyment of a j2ee application on WebLogic Server 7.0 SP2
Approach 1
The application is deployed in exploded ear format from the folder
d:/work/testbed/ear. The appropriate entry in config.xml looks like this.
<Application Deployed="true" Name="Testbed"
Path="D:\tools\bea702\projects\testbed\applications\testbed"
StagedTargets="" TwoPhase="false">
<EJBComponent Name="SessionBeans" Targets="myserver" URI="SessionBeans.jar"/>
</Application>
Creating or touching the REDEPLOY file in META-INF folder doesnt cause hot
deployment to occur
Approach 2
Copied the ear file to the applications folder. Creating or touching the
REDEPLOY file in META-INF file caused the application to be redeployed.
However the weblogic console is constantly spitting out this message.
Undeploying EJB Component SessionBeans
<Sep 29, 2003 9:53:46 PM IST> <Notice> <Application Poller> <149400> <Activating application: Testbed>
<Sep 29, 2003 9:53:46 PM IST> <Notice> <Application Poller> <149404> <Activate application Testbed on myserver - Completed>
Undeploying EJB Component SessionBeans
<Sep 29, 2003 9:53:51 PM IST> <Notice> <Application Poller> <149400> <Activating application: Testbed>
<Sep 29, 2003 9:53:52 PM IST> <Notice> <Application Poller> <149404> <Activate application Testbed on myserver - Completed>
Undeploying EJB Component SessionBeans
<Sep 29, 2003 9:53:57 PM IST> <Notice> <Application Poller> <149400> <Activating application: Testbed>
<Sep 29, 2003 9:53:57 PM IST> <Notice> <Application Poller> <149404> <Activate application Testbed on myserver - Completed>
It seems that the application is getting undeployed and reactivated every 5
seconds.
Questions
1) Any reasons why approach 1 didnt work
2) What could be causing this constant undeployment and reactivation
Thanks for your time
anand

How to hot deploy EJB in Weblogic?

Hi all,
We use Weblogic 10.3 and EJB3.
EJB has been build as ear and deployed in the server. And other deployed modules in server calls that.
But the modification of EJB need to be rebuilt and restart the server.
Does Weblogic support hot deploy for EJB? Do we need plugin or something else for this feature?
Thanks a lot.

Hi,
The production redeployment strategy/hot deployment is supported for:
a. Standalone Web Application (WAR) modules and Enterprise applications (EARs) whose clients access the application via a Web application (HTTP).
b. Enterprise applications that are accessed by inbound JMS messages from a global JMS destination, or from inbound JCA requests.
c. All types of Web Services, including conversational and reliable Web Services, but not 8.x Web Services.
Production redeployment is not supported for:
a. Standalone EJB or RAR modules. If you attempt to use production redeployment with such modules, WebLogic Server rejects the redeployment request. To redeploy such modules, remove their version identifiers and explicitly redeploy the modules.
b. Applications that use JTS drivers. For more information on JDBC application module limitations, see JDBC Application Module Limitations in Configuring and Managing JDBC for Oracle WebLogic Server.
c. Applications that obtain JDBC data sources via the DriverManager API; in order to use production redeployment, an application must instead use JNDI to look up data sources.
d. Applications that include EJB 1.1 container-managed persistence (CMP) EJBs. To use production redeployment with applications that include CMP EJBs, use EJB 2.x CMP instead of EJB 1.1 CMP.
Please check the below Doc
http://docs.oracle.com/cd/E14571_01/web.1111/e13702/redeploy.htm#
Hope this answers your question!!
Thanks,
Vijaya

Hot deployment in weblogic

Hi
I have some questions related to hot deployment.
1. Is Hot Deployment similar to auto-deploy option in development mode?
2. Using Auto-deploy is it possible to get the application deployed on managed server
( I found that it gets deployed on Admin server and it is not recommended to deploy on Managed.. but is there any way to deploy on managed server)
3. my application (ear) has dependencies... those are deployed as library.. is it possible to deploy library using auto-deploy
Thanks

1. no - hot deployment, deploy, redeploy, or undeploy an application while the server is running without affecting other applications or requiring a server restart
2. no - the admin server has a feature known as auto-deployment that is enabled when you create a domain using development mode. With this feature, the server watches the autodeploy directory for changes and automatically deploys new or changed applications that it finds there.
3. why would you want that - just deploy the libraries and refer to those libraries in your deployment overrides.
Better way to auto-deploy is using the wldeploy Ant task. (http://download.oracle.com/docs/cd/E11035_01/wls100/programming/wldeploy.html)

Hot deployment of class files (non-EJB)

Also posting to the servlet newsgroup.
"Craig Ambrose" <[email protected]> wrote in message
news:[email protected]..
>
I am using WebLogic 6.1 and am interested in using auto-deployment indevelopment
mode of JSPs and class files that those JSPs rely on. I have a simpleWebLogic
application that gets deployed using the exploded directory format andwhen I
modify the JSPs or the class files that they use everything reloadsproperly and
a newly modified class file will be reloaded the next time the pageutilizing
the Java class is requested.
I have a much more complicated application (the one I am really doing workon)
and I can't get the hot deploy of the class files to take effect. The JSPswill
reload but I can't seem to cause the class loader to reload any changedclass
files. If I use the WebLogic Console and un-deploy and then re-deploy theapplication
then the class files will be reloaded, but I thought that wasn't necessaryfor
hot deployment. This complex application stores many things in the HTTPsession
context. I am wondering if that has an effect on the class loader fordependant
class files.
I'm pretty sure it is not a configuration issue as I have it working forthe simple
application. I have the application deployed under the.\config\<domainname>\applications
directory and am using the exploded directory format with the class filesalso
exploded in the WEB-INF\classes directory.
Any insights on dependancies of the hot depployment would be helpful.

Hot deployment of servlet

hi
i have compiled the servlet in jdeveloper and set the path to oc4j../../web-inf/classes path;after compiling the class Is it neccassary to shutdown the oc4j container;
after shutdown the container only i am seeing the effect;without shutdown the container can we see the effect;we can do it Tomcat ;Is there any facility in OC4J ;
bye
chaitanya

 Hi, suppose you have the servlet called JoeServlet and registered as joeservlet with an argument, say, a file joe.txt. If you want to 'hot' deploy the JoeServlet you should make sure that a) the servlet's name must be unique b) the servlet's class must be in your servlet classpath (see the properties sheet aside) c) the initial argument, say: joeargument=./joe.txt, must match the the name expected by your servlet (eg. getInitParameter("joeargument")). If you have done correctly WLS must work.
 Joe
 "Jayesh Patel" <[email protected]> wrote:
 >
 >I am trying to hot deploy a simple servlet using weblogic console.
 >
 >I am getting error saying that
 >
 >"Property change error for property "RegisterNewServlet".
 >Servlet could not be loaded or instantiated"
 >
 >I am sure that servlet class I am trying to load is in servlet
 >class path.
 >
 >Any idea what is going wrong here.
 >
 >Thanks.
 >
 >
 >

Hot deployment while running...

Hi there!
Does any body have experience HotDeployment while end user are using the application?
For my self I got a real problem with HttpSession. After hot deployment all
sessions are invalidate!! I mean "request.getSession(false)" return false. I
have already carefully read documentation and pointed out that object store in
session must be serializable. OK it's done. Now what else should I check?
Thanks!

redeploying will invalidate a servlet session. this is not a bug, but rather the intended
behavior.
if all you want to do is update content (jsp's, html, gif, jpeg, etc) you can use the
refresh tool.
it is a light-weight operation, instead of the heavyweight redeploy.
to use it, please run the command:
java weblogic.management.tools.WebAppComponentRefreshTool
(this tool is compatible with 6.0 and 6.1)
tracey
"Thierry Giguère" wrote:
Hi there!
Does any body have experience HotDeployment while end user are using the application?
For my self I got a real problem with HttpSession. After hot deployment all
sessions are invalidate!! I mean "request.getSession(false)" return false. I
have already carefully read documentation and pointed out that object store in
session must be serializable. OK it's done. Now what else should I check?
Thanks!

Hot deployment in WL 8.1

Hi All,
I am deploying the application from my development dir "c:\development" as
exploded for WAR file and EJB modules as JAR files. What should I do to make
the hot deployment work?
My environment is: Win XP, IDE is JBuilder(also use Eclipse3.0), Weblogic
8.1
When I was googling, it brought me the CLASS-LOADER article in bea docs and
I applied that making different nested class-loaders for EJB, WAR in one and
the EJB module which is under development in a separate class-loader. It did
not work. But I think there should be an easy way for hot deployment. If
there is any link that talks about this please let me know. Your response is
appreciated.
Thanks,
senthil

Also adding to that, the server is started in development mode.
"Senthil" <[email protected]> wrote in message
news:[email protected]...
I am not sure this a way to go for hot deployment. But what I did was
changing the application and weblogic-application.xml files.
My application.xml is like
===========application.xml===========
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE application PUBLIC "-//Sun Microsystems, Inc.//DTD J2EE
Application 1.3//EN" "http://java.sun.com/dtd/application_1_3.dtd">
<application>
<display-name>AppName</display-name>
<module>
<web>
<web-uri>Web</web-uri> 
<context-root>/</context-root>
</web>
</module>
<module>
<ejb>EJB1</ejb>
</module>
<module>
<ejb>EJB2</ejb>
</module>
</application>
=============END==========
weblogic-application.xml is given below
==============weblogic-application.xml==========
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE weblogic-application PUBLIC "-//BEA Systems, Inc.//DTD WebLogic
Application 8.1.0//EN"
"http://www.bea.com/servers/wls810/dtd/weblogic-application_2_0.dtd">
<weblogic-application>
<classloader-structure>
<module-ref>
<module-uri>EJB1.jar</module-uri>
</module-ref>
<classloader-structure>
<module-ref>
<module-uri>EJB2.jar</module-uri>
</module-ref>
</classloader-structure>
</classloader-structure>
</weblogic-application>
=========End===========
Thanks,
senthil
"Senthil" <[email protected]> wrote in message
news:[email protected]...
Hi All,
I am deploying the application from my development dir
"c:\development"
as
exploded for WAR file and EJB modules as JAR files. What should I do tomake
the hot deployment work?
My environment is: Win XP, IDE is JBuilder(also use Eclipse3.0),
Weblogic
8.1
When I was googling, it brought me the CLASS-LOADER article in bea docsand
I applied that making different nested class-loaders for EJB, WAR in oneand
the EJB module which is under development in a separate class-loader. Itdid
not work. But I think there should be an easy way for hot deployment. If
there is any link that talks about this please let me know. Your
response
is
appreciated.
Thanks,
senthil

Previous unanswered Hot deploy of non EJB, non JSP classes

 Subject to my last post I've since seen my questions has appeared twice on this
 newsgroup, March 2001, and Nov 2000 and no responses to it those times. Aren't
 there BEA engineers reading this newsgroup who would know the answer to that question?
 http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.jsp&item=3776&utag=
 http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.jsp&item=5171&utag=


 Firstly I already did call BEA support before coming here, this is my last resort.
 I can't get a definitive answer from support. They were the ones that actually
 suggested to me that I post here in the first place. I did search the BEA edocs
 and couldn't find anything on it.
 Secondly, I am using WL 6.1 SP1, and in the thread just beneath this one, which
 I referred to directly in my opening post on this thread, I do mention this in
 the opening paragraph, in fact I give considerable detail.
 Thirdly, I never implied there was an onus on any BEA engineer to answer anything
 here. What I did mean was that given that they do read these posts and they do
 answer posts, I was merely a bit concerned that as I'm third person to ask, it
 would be strange to still get no response given that they answer other questions.
 I mean if they don't know, then who does? It's a real simple yes/no answer, it
 would take 5 seconds.
 Paul
 Robert Patrick <[email protected]> wrote:
 >
 >
 >The answer is simple -- move to WLS 6.x and use enterprise applications
 >(or web applications or an EJB jar file)
 >to package everything up into a single deployment unit and hot deploy
 >the whole deployment unit. WLS 5.1 and
 >earlier do not support hot deployment of non-servlet/non-JSP/non-EJB
 >classes.
 >
 >Mike Reiche wrote:
 >
 >> You can always call BEA Support - 1.888.232.7878 to get the help you
 >need. This
 >> newsgroup is not official BEA Support. It is out of the goodness of
 >their hearts
 >> that BEA engineers help people out here.
 >>
 >> I don't really think you wanted everyone that read your email and didn't
 >know
 >> if such a feature was available, to send you an email saying 'No, I
 >don't know
 >> if such a feature is available'. That's why there were zero responses.
 >>
 >> None of the posts you listed mention what version of WL. That makes
 >a difference.
 >> Also read the online documentation at edocs.bea.com, search for 'hot
 >deploy'.
 >>
 >> Mike Reiche
 >>
 >> "Paul H" <[email protected]> wrote:
 >> >
 >> >Subject to my last post I've since seen my questions has appeared
 >twice
 >> >on this
 >> >newsgroup, March 2001, and Nov 2000 and no responses to it those times.
 >> >Aren't
 >> >there BEA engineers reading this newsgroup who would know the answer
 >> >to that question?
 >> >
 >> >http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.jsp&item=3776&utag=
 >> >
 >> >http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.jsp&item=5171&utag=
 >
 >
 ><!doctype html public "-//w3c//dtd html 4.0 transitional//en">
 ><html>
 >The answer is simple -- move to WLS 6.x and use enterprise applications
 >(or web applications or an EJB jar file) to package everything up into
 >a single deployment unit and hot deploy the whole deployment unit.
 >WLS 5.1 and earlier do not support hot deployment of non-servlet/non-JSP/non-EJB
 >classes.
 >Mike Reiche wrote:
 ><blockquote TYPE=CITE>You can always call BEA Support - 1.888.232.7878
 >to get the help you need. This
 > newsgroup is not official BEA Support. It is out of the goodness
 >of
 >their hearts
 > that BEA engineers help people out here.
 >I don't really think you wanted everyone that read your email and
 >didn't
 >know
 > if such a feature was available, to send you an email saying 'No,
 >I
 >don't know
 > if such a feature is available'. That's why there were zero responses.
 >None of the posts you listed mention what version of WL. That makes
 >a difference.
 > Also read the online documentation at edocs.bea.com, search
 >for
 >'hot deploy'.
 >Mike Reiche
 >"Paul H" <[email protected]> wrote:
 > >
 > >Subject to my last post I've since seen my questions has appeared
 >twice
 > >on this
 > >newsgroup, March 2001, and Nov 2000 and no responses to it those
 >times.
 > >Aren't
 > >there BEA engineers reading this newsgroup who would know the answer
 > >to that question?
 > >
 > >http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.jsp&item=3776&utag=
 > >
 > >http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.jsp&item=5171&utag=</blockquote>
 ></html>
 >
 >

Hot deployment using the REDEPLOY feature

Hi
I am rather confused regarding the usage of the HOT DEPLOYMENT in WLS 6.1 sp2
- Win2000.
According to the documentation - "deployment.pdf" p. 31 you should be able to
simply touch the REDEPLOY file and the entire application should then be redeployed
by WLS. However according to the following link:
http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.management&item=2095
the usage of the REDEPLOY feature is only for WebApp's not EJB's.
So my question in short terms: What am I supposed to belive ? the BEA documentation
or the BEA support team ?
I have tried using the REDEPLOY feature as suggested by the documentation however
the WLS fails to do the redeployment with an execption.
Kind regards
Jorgen Fastrup

From my experience REDEPLOY does work for EJBs as well. You need to meet two conditions: REDEPLOY file should be in META-INF and your application should be deployed under the domain/application. I was not able to get it to work when the application is deployed elsewhere. If somebody knows how to it, please let me know.
Alexander.

WLS6sp2 Hot deployment in cluster does not work

 I have two WLS6sp2 servers in cluster in two different machines. There is an EJB
 deployed in the cluster that works fine. Now I go to the console and I undeploy
 it: the servers show a message of "ejb undeployed". Now I activate the "deploy"
 checkbox again: the following error appears:
 weblogic.ejb20.EJBDeploymentException: Error deploying stateless EJB; nested exception
 is:
 javax.naming.NameAlreadyBoundException: Can't rebind anything but a replica-aware
 stub to a name that is currently bound to a replica-aware stub; remaining name
 javax.naming.NameAlreadyBoundException: Can't rebind anything but a replica-aware
 stub to a name that is currently bound to a replica-aware stub; remaining name
 The object is obviously clusterable (it is a stateless EJB with "home-is-clusterable=true").
 It has been deployed to the cluster target. When is working it is load balanced
 between both servers. It deploys perfectly when starting up both servers, but
 hot deployment does not work.
 This works fine when only one server is up.
 ¿Is not possible to do hot deployment in cluster?


Hm, where are you seeing the javax.naming.NameAlreadyBoundException? In one of your managed
 servers, in all of your managed server, or in your admin server?
 If you see this in your admin server, then this means you got your admin joined in the cluster,
 which is not good. Remove it from the cluster if this is so.
 Gene
 "David Agudo" <[email protected]> wrote in message news:[email protected]...
 >
 > Yes, target="mycluster".
 >
 > "Gene Chuang" <[email protected]> wrote:
 > >Did you target the ejb to the cluster, or to each individual Node in
 > >your cluster? There is a
 > >difference...
 > >
 > >Gene
 > >
 > >"David Agudo" <[email protected]> wrote in message news:[email protected]...
 > >>
 > >> I have two WLS6sp2 servers in cluster in two different machines. There
 > >is an EJB
 > >> deployed in the cluster that works fine. Now I go to the console and
 > >I undeploy
 > >> it: the servers show a message of "ejb undeployed". Now I activate
 > >the "deploy"
 > >> checkbox again: the following error appears:
 > >>
 > >> weblogic.ejb20.EJBDeploymentException: Error deploying stateless EJB;
 > >nested exception
 > >> is:
 > >> javax.naming.NameAlreadyBoundException: Can't rebind anything but a
 > >replica-aware
 > >> stub to a name that is currently bound to a replica-aware stub; remaining
 > >name
 > >> ''
 > >> javax.naming.NameAlreadyBoundException: Can't rebind anything but a
 > >replica-aware
 > >> stub to a name that is currently bound to a replica-aware stub; remaining
 > >name
 > >> ''
 > >>
 > >> The object is obviously clusterable (it is a stateless EJB with "home-is-clusterable=true").
 > >> It has been deployed to the cluster target. When is working it is load
 > >balanced
 > >> between both servers. It deploys perfectly when starting up both servers,
 > >but
 > >> hot deployment does not work.
 > >>
 > >> This works fine when only one server is up.
 > >>
 > >> ¿Is not possible to do hot deployment in cluster?
 > >>
 > >
 > >
 >

Hot Deploy Servlet in JAR file problem

I've been playing with hot deploying servlets in WLS 5.1. I have SP2
          installed. I have things working fine with individual servlet class files. I
          decided to try hot deploying with jar files.
          I created a servlet, added it to a jar file, and then added the jar file to
          the 'weblogic.http.servlet.classpath'. I then restarted the server. I
          started the console and was able to hot deploy the servlet. So far so good.
          My next test is what failed. I modified the servlet, and rebuilt the jar
          file. I went back to the console, selected the servlet and hit the redeploy
          button. I went back to the browser and hit refresh - nothing, still the old
          servlet.
          It appears that WLS isn't reloading the jar file and the updated servlet.
          Everything works with individual class files.
          Does anyone know how I can cause the reload of updated servlets embedded
          within a jar file?
          Weblogic group - If there is no way now, will support be added soon?
          Thanks,
          Rick


Hi,
          If I use weblogic.servlet.ServletServlet to try just the servlet , It
          works correctly.But When I develop it in a web application , there is a lot
          of hypelink to this servlet,thus I can't use the relative path reference to
          that servlet.I try to set the name of weblogic.servlet.ServletServlet same
          as the webapp,It doesn't work,how do I solve this problem?
          Thank you
          Pan
          Subject: Re: Hot deploy Servlet in webapp
          > http://www.weblogic.com/docs51/classdocs/API_servlet.html#134798
          >
          > It even explains why you shouldn't use it in production environment.
          >
          > Dimitri

Hot Deploy Memory leak

It appears that when using the hot deploy functionality on Weblogic
6.2 to redeploy an EJB application .ear that all previously loaded
classes are untouched - creating a huge memory leak. The weblogic
generated stub classes are never touched, even though new copies are
loaded into memory. After numerous hot deploys, I eventually get an
out of memory error. Is there some way to force the unloading of
these classes? Is this fixed on WL 7 maybe ?

I will contact bea support as well, but any ideas if this fix is
resolved in base WL 7.0, or is there a SP for 7.0 that includes this
fix too?
Thanks,
Terry
==========
Rajesh Mirchandani <[email protected]> wrote in message news:<[email protected]>...
This is fixed over SP3 and is in SP4. Pls contact [email protected]
Jared Rodriguez wrote:
It appears that when using the hot deploy functionality on Weblogic
6.2 to redeploy an EJB application .ear that all previously loaded
classes are untouched - creating a huge memory leak. The weblogic
generated stub classes are never touched, even though new copies are
loaded into memory. After numerous hot deploys, I eventually get an
out of memory error. Is there some way to force the unloading of
these classes? Is this fixed on WL 7 maybe ?

Weblogic hot deployment

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