Enable Apache Portable Runtime in Tomcat 5

If Apache Portable Runtime is not enabled in Tomcat 5.

On startup you will see:

INFO main org.apache.catalina.core.AprLifecycleListener - The Apache Portable Runtime which allows optimal performance in production environments was not found on the java.library.path:

And then on shutdown:

INFO main org.apache.catalina.core.AprLifecycleListener - Failed shutdown of Apache Portable Runtime

Do the following to enable APR.

• Install apr packages using #yum -y install apr apr-util apr-devel apr-util-devel.
• Download tomcat5 in tar.gz format and install tomcat5.
• > cd /bin
  > ungzip tomcat-native.tar.gz
  > tar -xvf tomcat-native.tar
  > cd tomcat-native-/jni/native
  
• >./configure --with-java-home= --with-apr=/usr/bin/apr-1-config
  >make
  >make install (switch to root)
• > cd /jre/lib/i386
  > ln -s /usr/local/apr/lib/libtcnative-1.a libtcnative-1.a
  > ln -s /usr/local/apr/lib/libtcnative-1.so libtcnative-1.so
  > ln -s /usr/local/apr/lib/libtcnative-1.so.2 libtcnative-1.so.2
  > ln -s /usr/local/apr/lib/pkgconfig/ pkgconfig

And now Tomcat doesn't complain anymore. The Tomcat log file also states something new:

INFO main org.apache.coyote.http11.Http11AprProtocol - Starting Coyote HTTP/1.1 on http-8180