export CATALINA_OPTS="$CATALINA_OPTS -Xms4096m"
export CATALINA_OPTS="$CATALINA_OPTS -Xmx8192m"
export CATALINA_OPTS="$CATALINA_OPTS -XX:MaxPermSize=512m"

<Connector port="8080" protocol="HTTP/1.1"
               maxThreads="1000" minSpareThreads="80"
               compression="on"
               compressableMimeType="text/html,text/xml,text/plain"
               connectionTimeout="20000"
               redirectPort="8443" />