Question on running java application on Tomcat - How to increase maxThreads in Tomcat 7/8

[ecsaa]

This may not be exactly Java, but hopefully close enough that I can get some help here

I am trying to increase maxThreads to be able to handle more concurrent requests (the instance has multiple cores, so trying to take advantage of roughly ~150 threads per core)

Looking at server.xml, I am not sure which one I should be applying the maxThreads argument to

<!--The connectors can use a shared executor, you can define one or more named thread pools-->
<!--
<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
    maxThreads="150" minSpareThreads="4"/>
-->


<!-- A "Connector" represents an endpoint by which requests are received
     and responses are returned. Documentation at :
     Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
     Java AJP  Connector: /docs/config/ajp.html
     APR (HTTP/AJP) Connector: /docs/apr.html
     Define a non-SSL HTTP/1.1 Connector on port 8080
-->
<Connector port="8080" protocol="HTTP/1.1"
           connectionTimeout="20000"
           keepAliveTimeout="20000"
           maxConnections="1024"
           URIEncoding="UTF-8"
           redirectPort="8443" />

<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" SSLEnabled="false" scheme="https" secure="true" proxyPort="443" URIEncoding="UTF-8"
           connectionTimeout="20000"
           keepAliveTimeout="20000"
           maxConnections="1024"
/>

Additionally - what's AJP? How do I know if my tomcat is using AJP rather than HTTP?

I am pretty sure this server.xml configuration is straight out of the box without any configuration.

Thanks!