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From Nathan Bubna <nbu...@gmail.com>
Subject Re: commons-logging infinite loop w/5.5.9
Date Tue, 23 Aug 2005 23:38:17 GMT
On 8/23/05, Remy Maucherat <remm@apache.org> wrote:
> Nathan Bubna wrote:
> > hey folks,
> >
> > i'm a developer on the VelocityTools subproject, and we recently came
> > across an issue with the use of commons-logging in Tomcat 5.5.9.
> >
> > by default, we configure our example applications to use an adapter
> > between commons-logging and Velocity's LogSystem.  this way, those of
> > our tools which require logging are able to send messages to
> > commons-logging and they get passed of to the LogSystem that the rest
> > of Velocity is using (without having to pass that LogSystem around).
> > We also, by default, configure our VelocityViewServlet (the core class
> > of VelocityTools) to automatically send LogSystem messages to the
> > servlet log.
> >
> > so, messages sent to c-l are sent the the Velocity LogSystem which
> > sends the messages to the servlet log.
> >
> > this works just dandy for everyone in Tomcat 5.0.x, but when we deploy
> > our very minimal example applications in Tomcat 5.5.9, we promptly
> > receive stack overflows and out of memory errors that appear to be a
> > nasty little commons-logging loop.
> >
> > can somebody help me figure out what change between 5.0 and 5.5 is
> > causing this?  and further, what can be done about it?  i'm still not
> > even sure whether to consider this a bug in our design or in Tomcat.
> >
> > any help would be much appreciated!
> 
> In Tomcat 5.5, everything is logged to commons-logging, so the loop you
> get is to be expected.

so, i guess that means web applications/frameworks that wish to work
with Tomcat 5.5 must either not redirect commons-logging messages to
their own logging solution or else they must not use
servletContext.log(...) as a target for their logging solution,
correct?

> Rémy
> 
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