This most probably means there is deadlock somewhere in your
webapplication, leading to HTTP threads not being released because they
are stuck waiting for something before sending response to a user that
dropped hours agos.
To get clues on where your problem is when this happens, send signal
SIGQUIT to tomcat process, it will force the sun JVM to dump all threads
stacks.
Regards,
David Delbecq
Ajit Narayanan wrote:
hi,
My tomcat 4.1.27 is running on sun Solaris 8 box but ocassionally it hangs
out giving the error " All threads are busy, waiting. Please increase
maxThreads or check the servlet status75". I have tried increasing the no
of threads but its not working I guess. The application code looks clean
but can there be any compatibility issues (of tomcat and JDK) with the
solaris POSIX thread libraries?? If there is any problem then what can be
done to resolve this problem. One more thing restarting the tomcat manually
resolves the problem.
regards,
Ajit.
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