logging-log4j-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Gary Gregory <garydgreg...@gmail.com>
Subject Re: Need to clear ThreadContext for each HTTP request?
Date Tue, 17 Apr 2018 13:29:21 GMT
Should we provide a stock Log4j filter that does that? A nice convenience.

Gary

On Mon, Apr 16, 2018 at 10:01 PM, Kevin Jung <mykevinjung@gmail.com> wrote:

> Thanks Remko and Ralph for the information.  I thought of clearing in a
> filter, but somehow I thought there might be a clean up mechanism already
> because using ThreadContext in Tomcat is a quite common thing.  But that
> was just my assumption.  I agree that it's better to *clear explicitly*.
>
> Thanks,
> Kevin
>
> On Mon, Apr 16, 2018 at 8:32 PM, Ralph Goers <ralph.goers@dslextreme.com>
> wrote:
>
> > See the example at http://logging.apache.org/
> > log4j/2.x/manual/eventlogging.html <http://logging.apache.org/
> > log4j/2.x/manual/eventlogging.html>. You will see the call to clear the
> > ThreadContext. It does indeed use a filter.
> >
> > Ralph
> >
> > > On Apr 16, 2018, at 7:01 PM, Kevin Jung <mykevinjung@gmail.com> wrote:
> > >
> > > Hello,
> > >
> > > I am using Log4j 2 ThreadContext with Tomcat.  I wonder if I need to
> > clear
> > > ThreadContext at the end (or start) of HTTP request in order to avoid
> the
> > > context data being carried over to next HTTP request processing.
> > >
> > > I was assuming that thread context is cleared when Tomcat thread is put
> > > back in the thread pool and when a Tomcat thread starts processing new
> > HTTP
> > > request, it starts with an empty thread context, nothing carried over
> > from
> > > the previous HTTP request.  But that's my assumption, I want to make
> > sure I
> > > do not need to clear at the end, like using a servlet filter.  Or
> should
> > I
> > > use CloseableThreadContext to avoid carrying over among HTTP requests?
> > >
> > > Thanks,
> > > Kevin
> >
> >
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message