Re: Unable to classload servlet class using SharedLib GBean
Nevermind, the xmlns is wrong/out-dated. I changed it to " http://geronimo.apache.org/xml/ns/deployment-1.2"; and was able to deploy the XML file directly. |> | From: | |> >--------| |Anil Chawla/Raleigh/i...@ibmus | >| |> | To:| |> >| |user@geronimo.apache.org | >| |> | Date: | |> >| |09/16/2010 11:39 AM | >| |> | Subject: | |> >| |Re: Unable to classload servlet class using SharedLib GBean | >| Ivan, Thanks for your response - this sounds like a good option. I tried creating a geronimo-service.xml according to some instructions I found ( http://www.chariotsolutions.com/geronimo/geronimo-1.1/gbeans-modules.html#id2646361 ) but I'm getting the following error: Deployment Failed Cannot deploy the requested application module because no deployer is able to handle it. This can happen if you have omitted the J2EE deployment descriptor, disabled a deployer module, or if, for example, you are trying to deploy an EJB module on a minimal Geronimo server that does not have EJB support installed. I used the following geronimo-service.xml and tried installing it directly (without a JAR) and also packaging it in under META-INF in an empty JAR: http://geronimo.apache.org/xml/ns/j2ee/deployment-1.2";> MyApp ClassPath 1.0 jar org.apache.geronimo.configs system-database 2.1.5 car org.apache.derby.jdbc.EmbeddedDataSource /data/support,/data/MyApp/lib,/data/MyApp/libext /data/support/conf,/data/MyApp/database,/data/MyApp/conf ServerInfo Am I going about this the right way? I appreciate any guidance you can provide. Inactive hide details for Ivan ---09/15/2010 09:16:04 PM---IIRC, the SharedLib only takes affect on the runtime. One workaroundIvan ---09/15/2010 09:16:04 PM---IIRC, the SharedLib only takes affect on the runtime. One workaround is that first deploy a geronimo From: Ivan To: user@geronimo.apache.org Date: 09/15/2010 09:16 PM Subject:Re: Unable to classload servlet class using SharedLib GBean IIRC, the SharedLib only takes affect on the runtime. One workaround is that first deploy a geronimo service module which contains the sharedlib gbean, and then add it as a dependency for your ear application, it should work. 2010/9/15 Anil Chawla Hi, We're trying to use the SharedLib GBean to classload *all* of the libraries for our application. This is because the libraries used by our applications in Geronimo are also needed by ou
Re: Unable to classload servlet class using SharedLib GBean
Ivan, Thanks for your response - this sounds like a good option. I tried creating a geronimo-service.xml according to some instructions I found ( http://www.chariotsolutions.com/geronimo/geronimo-1.1/gbeans-modules.html#id2646361) but I'm getting the following error: Deployment Failed Cannot deploy the requested application module because no deployer is able to handle it. This can happen if you have omitted the J2EE deployment descriptor, disabled a deployer module, or if, for example, you are trying to deploy an EJB module on a minimal Geronimo server that does not have EJB support installed. I used the following geronimo-service.xml and tried installing it directly (without a JAR) and also packaging it in under META-INF in an empty JAR: http://geronimo.apache.org/xml/ns/j2ee/deployment-1.2";> MyApp ClassPath 1.0 jar org.apache.geronimo.configs system-database 2.1.5 car org.apache.derby.jdbc.EmbeddedDataSource /data/support,/data/MyApp/lib,/data/MyApp/libext /data/support/conf,/data/MyApp/database,/data/MyApp/conf ServerInfo Am I going about this the right way? I appreciate any guidance you can provide. |> | From: | |> >| |Ivan | >| |> | To:| |> >| |user@geronimo.apache.org | >| |> | Date: | |> >| |09/15/2010 09:16 PM | >| |> | Subject: | |> >| |Re: Unable to classload servlet class using SharedLib GBean | >| IIRC, the SharedLib only takes affect on the runtime. One workaround is that first deploy a geronimo service module which contains the sharedlib gbean, and then add it as a dependency for your ear application, it should work. 2010/9/15 Anil Chawla Hi, We're trying to use the SharedLib GBean to classload *all* of the libraries for our application. This is because the libraries used by our applications in Geronimo are also needed by our stand-alone Java processes. We obviously don't want to duplicate the libraries for maintenance reasons. We have an EAR containing two WAR files (each requiring the same set of libraries), and we've defined the SharedLib reference within the EAR's geronimo-application.xml. The SharedLib works fine for all of our libraries except that it fails to classload the servlet file referenced in the web.xml of the two WARs. The only way we've been able to get it to work is to package the library containing our servlet class inside the EAR. Why can't the SharedLib load the servlet class? Here is the SharedLib entry in geronimo-application.xml: /data/support,/data/MyApp/lib,/data/MyApp/libext /data/support/conf,/data/MyApp/database,/data/MyApp/con
Unable to classload servlet class using SharedLib GBean
Hi, We're trying to use the SharedLib GBean to classload *all* of the libraries for our application. This is because the libraries used by our applications in Geronimo are also needed by our stand-alone Java processes. We obviously don't want to duplicate the libraries for maintenance reasons. We have an EAR containing two WAR files (each requiring the same set of libraries), and we've defined the SharedLib reference within the EAR's geronimo-application.xml. The SharedLib works fine for all of our libraries except that it fails to classload the servlet file referenced in the web.xml of the two WARs. The only way we've been able to get it to work is to package the library containing our servlet class inside the EAR. Why can't the SharedLib load the servlet class? Here is the SharedLib entry in geronimo-application.xml: /data/support,/data/MyApp/lib,/data/MyApp/libext /data/support/conf,/data/MyApp/database,/data/MyApp/conf ServerInfo And the servlet definition in web.xml: front_controller org.myapp.controller.FrontController The "FrontController" class is defined in /data/MyApp/libext/myapp.jar. When we deploy the EAR, we get the following exception: Caused by: java.lang.ClassNotFoundException: org.myapp.controller.FrontController in classloader MyApp/application_frontend.war/1.0/car at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadOptimizedClass (MultiParentClassLoader.java:447) at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass (MultiParentClassLoader.java:281) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at org.apache.geronimo.jaxws.builder.AdvancedWARWebServiceFinder.getPortInfo (AdvancedWARWebServiceFinder.java:142) ... 22 more Thanks for your help. Anil Chawla
Re: Substitution variables in gbean attribute value
Ivan, thanks for the prompt response. Our intention is to provide our users
with a WAR/EAR file and perhaps a simple startup script that they can edit
to set the correct environment variables for their environment. It is good
to know that there is a work-around like this but it might be a little too
complicated for our users.
Is there any other option for configuring external folders in our classpath
without putting a fixed path in geronimo-web.xml? For example, is there an
easy way to append to the classpath of the server when running geronimo.sh?
If so, we can just ask our users to set APP_HOME as an environment variable
and provide a startup script that runs gernonimo.sh with the right
parameters.
Thanks,
Anil Chawla
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|Re: Substitution variables in gbean attribute value
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You could NOT use the substitution directly in geronimo-web.xml, but you
might try a workaround solution below, it should work :-)
a. After deploying your application into the server, then stop the server.
b. Open the var/config/config.xml, and find the segment for your
application.
c. Let's take the SharedLib as an example, add a xml fragment like :
${APP_HOME}/lib
${APP_HOME}/conf
d. add the APP_HOME and its real value in the
var/config/config-substitutions.properties
e. Start the server, now it should use the value configured in the
config-substitutions.properties.
2010/8/25 Anil Chawla
Hi,
Is there a way to use substitution variables when defining gbeans in
geronimo-web.xml? For example, I would like to define a SharedLib for our
application with an APP_HOME variable that points to the actual location
of files on the user's filesystem:
${APP_HOME}/lib
${APP_HOME}/conf
ServerInfo
I've tried setting an APP_HOME environment variable as well as passing
APP_HOME as a Java system property. I even tried
org.apache.geronimo.config.substitution.APP_HOME but that seems to be
specific to config.xml.
Thanks,
Anil Chawla
--
Ivan
<><>
Substitution variables in gbean attribute value
Hi,
Is there a way to use substitution variables when defining gbeans in
geronimo-web.xml? For example, I would like to define a SharedLib for our
application with an APP_HOME variable that points to the actual location of
files on the user's filesystem:
${APP_HOME}/lib
${APP_HOME}/conf
ServerInfo
I've tried setting an APP_HOME environment variable as well as passing
APP_HOME as a Java system property. I even tried
org.apache.geronimo.config.substitution.APP_HOME but that seems to be
specific to config.xml.
Thanks,
Anil Chawla
Re: Issue regarding GeronimoLog
Ivan, thanks for the pointer. I was able to fix the issue by adding the following to the deployment plan: org.apache.geronimo.kernel.log.GeronimoLogFactory META-INF/services/org.apache.commons.logging.LogFactory Note that, even with the class filters, I had to add the property to prevent commons logging from picking up GeronimoLogFactory from the parent classloader. Anil Chawla |> | From: | |> >| |Ivan | >| |> | To:| |> >| |user@geronimo.apache.org | >| |> | Date: | |> >| |08/19/2010 09:36 PM | >| |> | Subject: | |> >| |Re: Issue regarding GeronimoLog | >| Hi, Refer to this thread, it should be helpful. http://apache-geronimo.328035.n3.nabble.com/Application-specific-log4j-issue-tc863758.html#a863758 2010/8/19 Anil Chawla Hi, We are moving our application to Geronimo and are encountering an issue with GeronimoLog. The core problem is that we are using the Apache Pig library and need to serialize objects created by that library. The Pig classes use the commons logging framework and unfortunately maintain Log references as instance fields rather than static fields -- which means that the Log field is also serialized when the object is serialized. This causes a failure on Geronimo when trying to serialize the Pig objects because the GeronimoLog implementation is not serializable. We are trying to find a solution without modifying all of the Pig classes. The only solution we have found so far is to dynamically set the "org.apache.commons.logging.LogFactory" system property when our application starts in order to replace the GeronimoLogFactory implementation with our own custom LogFactory implementation. Our custom LogFactory wraps GeronimoLog in order to make it serializable without breaking the normal server logging behavior. The problem with this approach is that it changes the LogFactory implementation for the entire VM and our classes are not available to other applications in the container. * Is there a way to replace the LogFactory/Log implementation but isolate that change to a specific WAR/EAR within Geronimo? * Are there any other ideas on how we might work around this issue? Thanks so much! Anil Chawla -- Ivan <><>
Issue regarding GeronimoLog
Hi, We are moving our application to Geronimo and are encountering an issue with GeronimoLog. The core problem is that we are using the Apache Pig library and need to serialize objects created by that library. The Pig classes use the commons logging framework and unfortunately maintain Log references as instance fields rather than static fields -- which means that the Log field is also serialized when the object is serialized. This causes a failure on Geronimo when trying to serialize the Pig objects because the GeronimoLog implementation is not serializable. We are trying to find a solution without modifying all of the Pig classes. The only solution we have found so far is to dynamically set the "org.apache.commons.logging.LogFactory" system property when our application starts in order to replace the GeronimoLogFactory implementation with our own custom LogFactory implementation. Our custom LogFactory wraps GeronimoLog in order to make it serializable without breaking the normal server logging behavior. The problem with this approach is that it changes the LogFactory implementation for the entire VM and our classes are not available to other applications in the container. * Is there a way to replace the LogFactory/Log implementation but isolate that change to a specific WAR/EAR within Geronimo? * Are there any other ideas on how we might work around this issue? Thanks so much! Anil Chawla
