Tomcat 6 安装 apr 支持（tomcat-native）

Tomcat 可以使用 apr 来提供更好的伸缩性、性能和集成到本地服务器技术。

1: 安装apr,apr-util
位置:/usr/local/
当前版本:apr-1.2.11.tar.gz,apr-util-1.2.10
分别在解压的目录中执行:
./configure && make && make isntall

最开始的情况是:
启动 tomcat
# /usr/local/etc/rc.d/tomcat6 start

默认情况下按照好了 Tomcat 6，启动时会在 /usr/local/apache-tomcat6.0/logs/stdout.log 里出现下面的日志：

INFO: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/local/diablo-jdk1.5.0/jre/lib/i386/client:/usr/local/diablo-jdk1.5.0/jre/lib/i386:/usr/local/diablo-jdk1.5.0/jre/../lib/i386:/usr/lib:/usr/local/lib

2:下面就来安装 tomcat-native,
# cd /usr/local/apache-tomcat6.0/bin
# tar xvf tomcat-native.tar.gz
# cd ./tomcat-native-1.1.10-src/jni/native/

# set env JAVA_HOME /usr/local/diablo-jdk1.5.0/
# ./configure --with-apr=/usr/local
# make
# make install

安装好了之后会有个提示：
----------------------------------------------------------------------
Libraries have been installed in:
/usr/local/apr/lib

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
- add LIBDIR to the `LD_LIBRARY_PATH' environment variable
during execution
- add LIBDIR to the `LD_RUN_PATH' environment variable
during linking
- use the `-Wl,--rpath -Wl,LIBDIR' linker flag

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(manual pages.
----------------------------------------------------------------------


安装后多出一个目录 /usr/local/apr
然后安装上面的提示操作一下就好了，我这里用的 link 的方式：
# ln -s /usr/local/apr/lib/libtcnative-1.so /usr/local/diablo-jdk1.5.0/jre/lib/i386/libtcnative-1.so


再重启 tomcat，
# /usr/local/etc/rc.d/tomcat6 restart

再看 tomcat 的日志：
# cat /usr/local/apache-tomcat6.0/logs/stdout.log

Aug 6, 2007 11:40:01 PM org.apache.catalina.core.AprLifecycleListener init
INFO: Loaded Apache Tomcat Native library 1.1.10.
Aug 6, 2007 11:40:01 PM org.apache.catalina.core.AprLifecycleListener init
……

嗯，看起来安装成功了。
更多信息和其它的配置还是去看http://tomcat.apache.org/tomcat-6.0-doc/apr.html吧。

遇到的问题：

add LIBDIR to the `LD_LIBRARY_PATH' environment variable
during execution

因为没有做这一步，运行TOMCAT的时候，总是报出找不到JDK路径的错。

设置：
export LD_LIBRARY_PATH = /usr/local/apr/lib