Hot deploy API

Hi!
I have requirement to hot deploy/redeploy EJBs from my program. I know that
WLS Console has a UI to some API to do that. What are APIs? How can I get
it?
Thanks in advance
DJ

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

Similar Messages

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 Deploy

When going through the "Creating a New Portal in a New Domain" whitepaper, everything works great until I get to the Hot Deploy. It begins Hot Deploying asks me for my username/password (weblogic/weblogic) continues along for a bit then constantly asks for my username/password. Any ideas?

Hi Karen,
This problem occurs when you don't have Internet access when you attempt hot-deploy (or your firewall blocks the ebcc).
The DOCTYPE tag in the descriptor file specifies the dtd on Sun's website. When the ebcc fails to download the dtd, it
(incorrectly) also fails to make the necessary changes to the application descriptor xml. Manually editing the application
descriptor as you described should do the trick. In general, however, here is the workaround:
1. Save the attached file to your hard drive (just save it to c:\).
2. Edit the application.xml file as follows:
a. First copy the entire DOCTYPE declaration and save it somewhere in a separate text file (in case want to revert back to it later).
b. Edit the DOCTYPE declaration so that it looks like this:
<!DOCTYPE application PUBLIC '-//Sun Microsystems, Inc.//DTD J2EE Application 1.3//EN' 'file:///application_1_3.dtd'>
(Notice that the java.sun.com web address is replaced with a URI to the file on your hard drive.)
3. Save your changes and hotdeploy will work with or without Internet access.
Best Regards,
Scott Ellis
BEA Systems
Karen Hensel wrote:
I have had the same problem after following the directions multiple times. I could
not get the portal to hot deploy or manually deploy from the console. It appears
xml files are not being updated with the new portal information.
I was finally able to get the portal deployed by adding (when the server was down,
of course) a <module> to application.xml and a <WebAppComponent> to the config.xml.
I'm still not sure things are fully correct.
"Robert Costa" <[email protected]> wrote:
I have tried 5 times now. The domain is created successfully but during
the hot
deploy of the portal, this is shown in the status window of the hot deploy:
Adding file: C:\bea\user_projects\testDomain\beaApps\portalApp-project\application-sync\portlets\Portlet1.portlet
to sync list.
Adding file: C:\bea\user_projects\testDomain\beaApps\portalApp-project\application-sync\webapps\testPortalWebApp\tools.wf
to sync list.
Adding file: C:\bea\user_projects\testDomain\beaApps\portalApp-project\application-sync\webapps\testPortalWebApp\webflow-extensions.wfx
to sync list.
Adding file: C:\bea\user_projects\testDomain\beaApps\portalApp-project\application-sync\webapps\testPortalWebApp\user_account.wf
to sync list.
Adding file: C:\bea\user_projects\testDomain\beaApps\portalApp-project\application-sync\webapps\testPortalWebApp\portal.wf
to sync list.
Adding file: C:\bea\user_projects\testDomain\beaApps\portalApp-project\application-sync\webapps\testPortalWebApp\security.wf
to sync list.
Adding file: C:\bea\user_projects\testDomain\beaApps\portalApp-project\application-sync\webapps\testPortalWebApp\testPortal.portal
to sync list.
Attempting sync...
Sync complete.
Searching for portalApp application descriptor...
Found it.
At which time it begins prompting me for my username/password. The dialog
box
says:
Logon (in titlebar)
Connection:
Server:
Username:weblogic
Password:
Should connection and server have values? If so, why don't they? I
followed
the document completely.
Thanks!
"Daniel Selman" <[email protected]> wrote:
Robert,
Strange. Are there any clues in the EBCC or server logs you could post?
Did
you double check your password is correct by logging in to the console?
Thanks,
Daniel Selman
"Robert Costa" <[email protected]> wrote in message
news:[email protected]...
When going through the "Creating a New Portal in a New Domain" whitepaper,everything works great until I get to the Hot Deploy. It begins Hot
Deploying asks me for my username/password (weblogic/weblogic) continues
along for a bit then constantly asks for my username/password. Anyideas?
>




<!ELEMENT application (icon?, display-name, description?, module+,
          security-role*)>

<!ELEMENT alt-dd (#PCDATA)>

<!ELEMENT connector (#PCDATA)>

<!ELEMENT context-root (#PCDATA)>

<!ELEMENT description (#PCDATA)>

<!ELEMENT display-name (#PCDATA)>

<!ELEMENT ejb (#PCDATA)>

<!ELEMENT icon (small-icon?, large-icon?)>

<!ELEMENT java (#PCDATA)>

<!ELEMENT large-icon (#PCDATA)>

<!ELEMENT module ((connector | ejb | java | web), alt-dd?)>

<!ELEMENT role-name (#PCDATA)>

<!ELEMENT security-role (description?, role-name)>

<!ELEMENT small-icon (#PCDATA)>

<!ELEMENT web (web-uri, context-root)>

<!ELEMENT web-uri (#PCDATA)>

<!ATTLIST alt-dd id ID #IMPLIED>
<!ATTLIST application id ID #IMPLIED>
<!ATTLIST connector id ID #IMPLIED>
<!ATTLIST context-root id ID #IMPLIED>
<!ATTLIST description id ID #IMPLIED>
<!ATTLIST display-name id ID #IMPLIED>
<!ATTLIST ejb id ID #IMPLIED>
<!ATTLIST icon id ID #IMPLIED>
<!ATTLIST java id ID #IMPLIED>
<!ATTLIST large-icon id ID #IMPLIED>
<!ATTLIST module id ID #IMPLIED>
<!ATTLIST role-name id ID #IMPLIED>
<!ATTLIST security-role id ID #IMPLIED>
<!ATTLIST small-icon id ID #IMPLIED>
<!ATTLIST web id ID #IMPLIED>
<!ATTLIST web-uri id ID #IMPLIED>

Hot deploying jsp tags

Hi does anybody out there no how to hot -deploy non ejb classes .Like jsp
          tags for example? It is extremely to code them without a hot deployment
          ability.
          Thanks in advance
          Jeff Anderson


Cameron,
          In general, what kind of "interesting bugs" and "design flaws" do you mean?
          I would expect that using any kind of cache can allow for bugs due to developers
          confusion... but are there inherent "bugs" (or design flaws) that are built into
          WL's Cache tag?
          Jack Lin
          Cameron Purdy wrote:
          > Install the latest SP. They are (relatively speaking) resource intensive.
          > However, properly implemented/used, this relative cost is close to 0.
          > (Instantiating a Java class and calling a few empty methods uses a couple
          > hundred clock cycles on a good JVM.) BTW Pooling is considerably more
          > expensive for simple objects than instantiating new ones. Also, due to
          > design flaws in the custom tag API, pooling JSP tags could lead to some
          > interesting bugs related to the lack of re-initialization.
          >
          > --
          >
          > Cameron Purdy
          > [email protected]
          > http://www.tangosol.com
          > WebLogic Consulting Available
          >
          > "Anthony Raiti" <[email protected]> wrote in message
          > news:39d4a35f$[email protected]..
          > We are researching JSP Tags as a method of seperating our creative and
          > coding efforts. Our research is showing that JSP tags is a resource hog and
          > noticed that none of the JSP Tags are being pooled. Docs that we have looked
          > at suggest that pooling does occur, but we do not see it happening. Is
          > anyone using this technology and if so how is the performance?

Weblogic deployment APIs giving error for deployment on weblogic 10.3.2

I am using weblogic deployment APIs to distribute my war file on weblogic 10.3.2 but it gives the following error on distribute
weblogic.management.ManagementException: [Deployer:149003]Unable to access application source information in '<!DOCTYPE HTML PUBLIC "-/W3C/DTD HTML 4.0 Draft/EN">/app/jamagent.war' for application 'jamagent.war'. The specific error is: No application files exist.
My sample code is below.
DeploymentOptions options = null;
Target[] targets = myConnectedManager.getTargets();
Class wlsFactoryClass = Class.forName("weblogic.deploy.api.tools.SessionHelper");
Method m = wlsFactoryClass.getDeclaredMethod("getDeploymentManager",new Class[]{String.class,String.class,String.class,String.class});
m.setAccessible(true);
WebLogicDeploymentManager myConnectedManager = (WebLogicDeploymentManager)m.invoke(wlsFactoryClass, new Object[]{hostname,port,weblogicUsername,weblogicPasswd});
myConnectedManager.enableFileUploads();
options = new DeploymentOptions();
options.setName(destWarName);
ProgressObject po = myConnectedManager.distribute(targets, new File("/tmp/jamagent_orig.war), null,options);
The header of web.xml is
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
Can someone help why this is happening? I am not including weblogic-application.xml in the war file as i think this is not required for a war file. Is that the reason?
Edited by: user790199 on Dec 28, 2009 7:37 AM

Hi,
The DTD used in "web.xml" should not cause any issue ...though it's the OLD "web.xml"...Please try to run the Following command to Generate the New Deployment Descriptors from the Existing Application:
Step1). Open a Command Window and Run "setWLSEnv.sh" or "setWLSEnv.cmd".
Step2). In the Command Prompt move to the Current Directory where you have placed your Application and then Run the Following Command
java weblogic.DDConverter -d NewDDs jamagent.war
Here Above Command Will read the "jamagent.war" War archive and then It will generate the New DDs in "NewDDs" directory...Which we need to replace with the OLD DDs present in our WebApplication..
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Wonders Are Here)

Com.sap.tc.webdynpro.services.sal.deployment.api.WDClassLoaderException:

my application run sucessfully for past copule of weeks but
now it show the following exception and i can't able to see my
output window.... i dont know why
The Exception is:
com.sap.tc.webdynpro.services.sal.deployment.api.WDClassLoaderException: Classloader of 'local/Certification' is null, even though application is started.
if anyone knows, please help me....
thank you

Hi,
plz check the values of all attributes.
Suppose the values is not there(null) and ur checking some conditions based on this value.
Null pointer exception will araise due to any nullvalue.
To avoid this plz put the check--> if(!value = null){........ }.
Reagrds,
Lavanya.G

Creation of InitialContext fails when i hot-deploy scheduler-service.xml

Creation of InitialContext fails when i hot-deploy scheduler-service.xml
I configured scheduler-service as follows in Jboss 3.2:
scheduler-service.xml
<mbean code="org.jboss.varia.scheduler.Scheduler"
     name=":service=Scheduler">
<attribute name="StartAtStartup">true</attribute>
<attribute name="SchedulableClass">com.beta.my.utils.FMScheduler</attribute>
<attribute name="SchedulableArguments">Schedulabe Test,12345</attribute>
<attribute name="SchedulableArgumentTypes">java.lang.String,int</attribute>
<attribute name="InitialStartDate">0</attribute>
<attribute name="SchedulePeriod">10000</attribute>
<attribute name="InitialRepetitions">-1</attribute>
</mbean>
Schedulable Class
package com.beta.my.utils;
import java.util.Date;
import org.jboss.varia.scheduler.Schedulable;
public static class FMScheduler
implements Schedulable
private String mName;
private int mValue;
public FMScheduler(String pName,int pValue)
mName = pName;
mValue = pValue;
public void perform(Date pTimeOfCall,long pRemainingRepetitions)
try {
          Context context = new InitialContext();//properties taken from jndi.properties file
          } catch (Exception e){
               e.printStackTrace();
I started my jboss..,FMScheduler created successfully, perform method in FMScheduler called succesfully after SchedulePeriod(1000)
The problem occurs(NullPointerException) while i changed SchedulePeriod time and hot-deployed(just saved scheduler-service.xml).
The following Exception occures due to InitialContext creation fails*(Context context = new InitialContext();)* in FMScheduler.
17:46:27,361 ERROR [STDERR] java.lang.NullPointerException
17:46:27,361 ERROR [STDERR] at org.jboss.mx.loading.UnifiedClassLoader.findR
esources(UnifiedClassLoader.java:374)
17:46:27,361 ERROR [STDERR] at java.lang.ClassLoader.getResources(ClassLoade
r.java:825)
17:46:27,361 ERROR [STDERR] at com.sun.naming.internal.VersionHelper12$5.run
(VersionHelper12.java:145)
17:46:27,361 ERROR [STDERR] at java.security.AccessController.doPrivileged(N
ative Method)
17:46:27,377 ERROR [STDERR] at com.sun.naming.internal.VersionHelper12.getRe
sources(VersionHelper12.java:142)
17:46:27,377 ERROR [STDERR] at com.sun.naming.internal.ResourceManager.getAp
plicationResources(ResourceManager.java:468)
17:46:27,377 ERROR [STDERR] at com.sun.naming.internal.ResourceManager.getIn
itialEnvironment(ResourceManager.java:159)
17:46:27,377 ERROR [STDERR] at javax.naming.InitialContext.init(InitialConte
xt.java:215)
17:46:27,377 ERROR [STDERR] at javax.naming.InitialContext.<init>(InitialCon
text.java:195)
17:46:27,377 ERROR [STDERR] at com.beta.my.utils.FMScheduler.perform
(FMScheduler.java:42)
17:46:27,392 ERROR [STDERR] at org.jboss.varia.scheduler.Scheduler$Listener.
handleNotification(Scheduler.java:1263)
17:46:27,392 ERROR [STDERR] at org.jboss.mx.server.NotificationListenerProxy
.handleNotification(NotificationListenerProxy.java:69)
17:46:27,392 ERROR [STDERR] at javax.management.NotificationBroadcasterSuppo
rt.sendNotification(NotificationBroadcasterSupport.java:95)
17:46:27,392 ERROR [STDERR] at javax.management.timer.Timer.sendNotification
s(Timer.java:441)
17:46:27,392 ERROR [STDERR] at javax.management.timer.Timer.access$000(Timer
.java:31)
17:46:27,408 ERROR [STDERR] at javax.management.timer.Timer$RegisteredNotifi
cation.doRun(Timer.java:612)
17:46:27,408 ERROR [STDERR] at org.jboss.mx.util.SchedulableRunnable.run(Sch
edulableRunnable.java:164)
17:46:27,408 ERROR [STDERR] at org.jboss.mx.util.ThreadPool$Worker.run(Threa
dPool.java:225)
please help me if u have any idea,thanks

Hi Hamsa,
Did you also create and configure an "Execution Destination"?
You can test the Metadata destination configuration on Web Service Navigator.
On the web service navigator (http://hostname:portnumber/wsnavigator) search in the metatda destination you have created for the service you imported in web dynpro as a model. If you can find it there test it on the ws navigator.
Best regards,
Yasar

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 of Plugin on OIM cluster

Does someone know , how to deploy(re-register) the plugin(event Handler ,schedule Task etc.) on OIM cluster in real time.
I have observed that when i do re-register the plugin(after any code changes etc.) from one of the nodes of the cluster, the new code does not get reflected on all the nodes.
It works from one or two nodes but not from all nodes.
Even after doing Purge Cache from all nodes the behavior remains the same.(Restart of OIM will do the trick, but i need hot deployment)
Any ideas?
Thanks
Akshat

That's what I have observed that even though the documentation says that PurgeCache.sh will do the trick but it never works. You have to restart the OIM Servers.

Servlet hot deployment with a webApp

Hi everybody,
Does anybody know something about hot deployment of servlets in a web
application (.war) ?
I tried many things (setting reloadCheckSecs in properties, in web.xml,
hot-deploy from console...) but nothing really worked.
So I have to register a servlet for hot deployment in the properties, but
then it doesn't belong to the application.
Thanx,
Markus.

I presume you are on 51.
we do not support hot deployment of webapps in 51. We support this in 6.0
Kumar
"M. Hammer" wrote:
Hi everybody,
Does anybody know something about hot deployment of servlets in a web
application (.war) ?
I tried many things (setting reloadCheckSecs in properties, in web.xml,
hot-deploy from console...) but nothing really worked.
So I have to register a servlet for hot deployment in the properties, but
then it doesn't belong to the application.
Thanx,
Markus.

Servlet Hot-Deploy with a WebApp

Hi everybody,
Does anybody know something about hot deployment of servlets in a web
application (.war) ?
I tried many things (setting reloadCheckSecs in properties, in web.xml,
hot-deploy from console...) but nothing really worked.
So I have to register a servlet for hot deployment in the properties, but
then it doesn't belong to the application.
Thanx,
Markus.

Are u saying that WARs are redeployed automatically but not individual servlets,
or neither?
Thanks.
Viresh Garg wrote:
Currently the automatic hot deployment of a servlet/JSP from exploaded WAR is
broken. We are in the process of fixing it for next release. You have to
redeploy your web application right now, for the change to take place.
Viresh Garg
Principal Developer Relations Engineer
BEA Systems
"M. Hammer" wrote:
Hi everybody,
Does anybody know something about hot deployment of servlets in a web
application (.war) ?
I tried many things (setting reloadCheckSecs in properties, in web.xml,
hot-deploy from console...) but nothing really worked.
So I have to register a servlet for hot deployment in the properties, but
then it doesn't belong to the application.
Thanx,
Markus.

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

Hi,
I have a gateway which instantiates and runs applications. Each application implements an interface so the gateways only sees the class at type (interface).
I have a huge problem in that we have a number of developers working on these applications. There are constantly bug fixes, new functionality etc. that must be added.
How can I hot deploy these classes? I cannot restart the entire gateway every time I upload a class. This affects all the other applications.
I have looked at dynamic class loading but this is going to take some serious time to create a custom class loader that will actually destroy old class loaders when creating new ones.
Is there a simpler way to enable my gateway for hot deployment?
thanks!

Creating a new classLoader does not take a lot, and you can tell it NOT to cache the class.
Also, you can simply destroy all current references to a class when running, replace the class file, and then allow code to call the class object again - thus reading the new class file.
It's not typically a good idea to deploy-in-production any code.

Hot Deploying Servlets from the command line

Is it possible to hot deploy a servlet from the command line?

Use the mbocutil command line tool located in:
server root/bin/msg/admin/bin
You can create a folder with spaces by using quotes like thus:
./mboxutil -c "user/Tuser/Test Folder"
-Chris

Hot deploy API

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