tomcat nio 설정

기존

<Connector port="8080" protocol="HTTP/1.1"
               maxThreads="500"
               connectionTimeout="20000"
                maxKeepAliveRequests="1"
               redirectPort="8443" />

NIO 설정

<Connector port="8080"
               protocol="org.apache.coyote.http11.Http11NioProtocol"

               maxConnections="10000"
               maxThreads="500"
               connectionTimeout="20000"
               maxKeepAliveRequests="1"
               redirectPort="8443" />