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Posted to dev@tomcat.apache.org by bu...@apache.org on 2009/04/02 22:48:39 UTC
DO NOT REPLY [Bug 34110] The message "SEVERE: Error listenerStart"
should be more explicit
https://issues.apache.org/bugzilla/show_bug.cgi?id=34110
--- Comment #3 from Dan Armbrust <da...@gmail.com> 2009-04-02 13:48:36 PST ---
I ran into this issue where tomcat was not giving me any information to go on
with one of my webapps.
After a long search, documented here:
http://marc.info/?t=123861720500002&r=1&w=2
we discovered that the sequence of events which leads tomcat to not log any
debug information about the error is as follows:
You deploy a war file to tomcat which includes log4j.jar, and has a listener
declared in the web.xml file.
The listener in the web.xml file points to a class that doesn't exist. This
will cause the deployment to fail.
The war file that you deploy does _NOT_ include a log4j.properties or log4j.xml
file in the WEB-INF/classes folder - presumably because your webapp dynamically
configures log4j in a different manner.
The end result is, there is some period of time during deployment of the webapp
when tomcat attempts to log deployment messages to log4j which was supplied by
your webapp - but since the log4j within the webapp is not yet configured, the
messages are lost.
I'm not sure if there is anything that can be done to improve this situation.
An obvious solution for me is to supply a log4j.properties file which will be
used to configure log4j for the short period of time before my dynamic
configuration runs.
But it seems like Tomcat should always log issues during deployment into its
own logging system, rather than trying to send them into the webapps logging
system.
Here is a vote to re-open this bug.
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