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From Matt Sicker <boa...@gmail.com>
Subject Re: problems with web app and JndiContextSelector
Date Fri, 22 Aug 2014 18:50:10 GMT
No I haven't been able to do this yet actually. We've been using it inside
a WAR actually, so it didn't come up as an issue. This may be a bug worth
reporting.


On 22 August 2014 13:46, Mike Calmus <mike@calmus.org> wrote:

> 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>
>>
>
>


-- 
Matt Sicker <boards@gmail.com>

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