Hi, we are using TC 3.2.2 (upgrade to 3.2.3 soon to follow) in a production environment with medium traffic and standalone mode. The configuration in server.xml is identical to the distribution, except for the modified port number and an <Parameter name="max_threads" value="500"/> in the configuration of the HTTP connector. Other connectors are not in use, except for shutdown (AJP12). From time to time it occurs, that TomCat is no more serving requests. In the error log I find the message "thread pool exhausted". The dropouts could be reduced by increasing the thread pool size and by rebooting nightly. However, from time to time the problem still occurs, although I am sure that we never serve 500 concurrent connections. My question is: How do I debug the problem? I would like to insert appropriate log statements into the TomCat source, that tell me when a new thread is created, when its serving a request, when it finishs serving a request, when its returned to or obtained from the pool in the hope to find a responsible problem in some servlet or whatever by analyzing thir output. However, I am not sufficiently used to the TomCat source to determine the appropriate locations for such logging statements. Any help appreciated. Thanks, Jochen
