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From Adrian Woodhead <>
Subject how to NOT log "WARNING: Parameters: Invalid chunk ignored." messages
Date Fri, 04 Apr 2008 15:24:58 GMT
Hey there,

We have a web-app which receives hundreds of requests per second, many 
of the requests coming from 3rd party apps which we have no control 
over. Now, it seems like some of these apps are sending us request 
strings ending in && which results in a message like this in catalina.out:

WARNING: Parameters: Invalid chunk ignored.

We cannot contact the developers and have them remove the &&'s and our 
log is filling up with thousands of these messages every minute. I am 
aware that we can safely ignore this but it's a waste of time and space 
in our log files and I would like to disable logging this. I tracked 
down the class which does it and read up on tomcat logging conf and 
tried adding the following line to TOMCAT_HOME/conf/

org.apache.tomcat.util.http.Parameters = ERROR

With no luck. I even tried modifying the JDK's logging properties in 
JAVA_HOME/jre/lib/ to also contain that line. Again, 
no luck. We are running tomcat 6.0.16.

How do I do this?



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