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From Mike Calmus <m...@calmus.org>
Subject Re: problems with web app and JndiContextSelector
Date Fri, 22 Aug 2014 18:46:12 GMT
Hi Matt,

Did you have a chance to try this out? Any new results you can share?
Thanks.


On Wed, Aug 6, 2014 at 11:52 PM, Matt Sicker <boards@gmail.com> wrote:

> Oh, well that wouldn't really help things at this point as I think there
> are still some strange issues in the OSGi support in Log4j anyhow. I'll see
> if I can take a look at this since we use the same version of Weblogic at
> my work (thus I actually know a little bit about this application).
>
>
> On 6 August 2014 16:31, Mike Calmus <mike@calmus.org> wrote:
>
> > I don't know for sure, but based upon my reading online it appears that
> may
> > be a new feature for 12c which we are not yet using.
> >
> >
> > On Wed, Aug 6, 2014 at 1:33 PM, Matt Sicker <boards@gmail.com> wrote:
> >
> > > Are system libraries in Weblogic loaded as OSGi bundles?
> > >
> > >
> > > On 6 August 2014 11:39, Mike Calmus <mike@calmus.org> wrote:
> > >
> > > > After extensive trial and error I think I have things boiled down. In
> > my
> > > > list "works" means that I see logging. For some there may be caveats.
> > > >
> > > > All tests were run using Weblogic 10.3.6 (a Servlet 2.5 container)
> > > running
> > > > on Java 7. There were no difference when using Log4j 2.0 versus
> 2.0.1.
> > > >
> > > > When I load the log4j libraries as a part of the server's startup
> > classes
> > > > (out current preferred configuration with Log4j 1.2.x):
> > > >
> > > > 1) Standard web-app configuration with configuration file specified
> in
> > > > web.xml does not work
> > > > 2) Configured with JndiContextSelector as the Log4jContextSelector
> > system
> > > > property it doesn't work when I have things configured correctly. If
> I
> > > > exclude the JNDI lookup environment properties I get an error in the
> > > System
> > > > log, but logging works.
> > > >
> > > > Removing the Log4j libraries from System startup and instead bundle
> > them
> > > > with the application (no other changes)
> > > > Scenario 1 above now works.
> > > > The JNDI configuration does not work.
> > > >
> > > >
> > > >
> > > >
> > > > On Fri, Aug 1, 2014 at 3:16 PM, Mike Calmus <mike@calmus.org> wrote:
> > > >
> > > > > We're using a Servlet 2.5 container and configuration. I added the
> > > > > Log4jContextSelector environment variable to the container startup
> as
> > > > well
> > > > > as loading all the Log4j 2.0 jars with the container. I added the
> > > > following
> > > > > items to my web.xml:
> > > > >
> > > > >   <context-param>
> > > > >     <param-name>isLog4jContextSelectorNamed</param-name>
> > > > >     <param-value>true</param-value>
> > > > >   </context-param>
> > > > >   <context-param>
> > > > >     <param-name>log4jContextName</param-name>
> > > > >     <param-value>myapp</param-value>
> > > > >   </context-param>
> > > > >   <context-param>
> > > > >     <param-name>log4jConfiguration</param-name>
> > > > >
> > > > >
> > > >
> > >
> >
> <param-value>file:///${sys:projectprops}/myapp/default/log4j2.xml</param-value>
> > > > >   </context-param>
> > > > >   <listener>
> > > > >
> > > > >
> > > >
> > >
> >
> <listener-class>org.apache.logging.log4j.web.Log4jServletContextListener</listener-class>
> > > > >   </listener>
> > > > >   <filter>
> > > > >     <filter-name>log4jServletFilter</filter-name>
> > > > >
> > > > >
> > > >
> > >
> >
> <filter-class>org.apache.logging.log4j.web.Log4jServletFilter</filter-class>
> > > > >   </filter>
> > > > >   <filter-mapping>
> > > > >     <filter-name>log4jServletFilter</filter-name>
> > > > >     <url-pattern>/*</url-pattern>
> > > > >     <dispatcher>REQUEST</dispatcher>
> > > > >     <dispatcher>FORWARD</dispatcher>
> > > > >     <dispatcher>INCLUDE</dispatcher>
> > > > >     <dispatcher>ERROR</dispatcher>
> > > > >   </filter-mapping>
> > > > > With just this, logging works fine, but I get an error when the
> JNDI
> > > > > lookup fails.
> > > > >
> > > > >   <env-entry>
> > > > >     <description>Sets the logging context for the
> > web-app</description>
> > > > >     <env-entry-name>log4j/context-name</env-entry-name>
> > > > >     <env-entry-type>java.lang.String</env-entry-type>
> > > > >     <env-entry-value>myapp</env-entry-value>
> > > > >   </env-entry>
> > > > > The JNDI lookup error goes away but logging stops working.
> > > > >
> > > > > I also tried adding the following with no change in results.
> > > > >
> > > > >   <env-entry>
> > > > >     <description>URL for configuring log4j context</description>
> > > > >     <env-entry-name>log4j/configuration-resource</env-entry-name>
> > > > >     <env-entry-type>java.lang.String</env-entry-type>
> > > > >
> > > > >
> > > >
> > >
> >
> <env-entry-value>file:///${sys:projectprops}/myapp/default/log4j2.xml</env-entry-value>
> > > > >   </env-entry>
> > > > >
> > > > >
> > > > > On Tue, Jul 29, 2014 at 11:37 AM, Ralph Goers <
> > > > ralph.goers@dslextreme.com>
> > > > > wrote:
> > > > >
> > > > >> The best would be a sample project that demonstrates the problem.
> > At a
> > > > >> minimum I would think the web.xml and log4j 2 configuration.
> > > > >>
> > > > >> Ralph
> > > > >>
> > > > >> On Jul 29, 2014, at 5:47 AM, Mike Calmus <mike@calmus.org>
wrote:
> > > > >>
> > > > >> > I am having problems moving our web app over to Log4j 2.0
using
> > JNDI
> > > > >> > lookups. I followed the configuration documentation and
am not
> > > getting
> > > > >> any
> > > > >> > errors, but nothing is being logged to my configured appenders.
> > > > >> Weirdly, if
> > > > >> > I remove the JNDI env-entry configuration from web.xml logging
> > seems
> > > > to
> > > > >> > work, albeit with the expected NameNotFoundException in
the
> server
> > > > >> output.
> > > > >> >
> > > > >> > One possibly relevant configuration difference is that we
load
> the
> > > > log4j
> > > > >> > jar files as part of server startup so each app doesn't
have to
> > load
> > > > >> them.
> > > > >> >
> > > > >> > Any ideas? What configuration can I provide to help
> troubleshoot?
> > > > >> >
> > > > >> > Thanks.
> > > > >>
> > > > >>
> > > > >>
> > ---------------------------------------------------------------------
> > > > >> To unsubscribe, e-mail: log4j-user-unsubscribe@logging.apache.org
> > > > >> For additional commands, e-mail:
> log4j-user-help@logging.apache.org
> > > > >>
> > > > >>
> > > > >
> > > >
> > >
> > >
> > >
> > > --
> > > Matt Sicker <boards@gmail.com>
> > >
> >
>
>
>
> --
> Matt Sicker <boards@gmail.com>
>

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