AsyncAppender dispatcher thread dies - no exception written to stderr

["Booth, Peter" <Pe...@gs.com>]

I have a large web application that has just begun failing with a gnarly
bug.
The AsyncAppender dispatcher thread dies, which causes the thread 
that is writing to the async appnder to block, and then other threads 
to wait on the async appender's mutex heald by that blocked thread,
which slowly kills my application.

There is an OutOfMemory error logged to standard error, but this could
be caused by this problem and not necessarily prompting the problem.
There are no other uncaught exceptions written to standard error, which
would be the obviosu cause of such a sproblem, as the async appender's
dispatch doesn't have a try catch block.

Has anyone else seen such a problem?

Any suggestiosn for the cause/cure?

Peter Booth