Is it possible to limit the number of simultaneous requests accepted in Tomcat?

Yes, in Apache Tomcat, you can limit the number of simultaneously accepted requests by configuring server parameters.

The main method is to limit the number of threads in the request handler pool (connector). This is done through the maxThreads parameter in the server.xml file within the <Connector> section.

Example:

<Connector port="8080" protocol="HTTP/1.1"
           maxThreads="200"
           ... />

The maxThreads value determines the maximum number of threads Tomcat can use to handle requests simultaneously. If the number of requests exceeds this value, new requests will wait in a queue.

You can also configure the acceptCount parameter, which sets the length of the waiting connection queue.

Thus, by controlling maxThreads and acceptCount, you can limit the load on Tomcat and the number of requests processed simultaneously.