The APR based Apache Tomcat Native library

The APR based Apache Tomcat Native library 异常


tomat在linux服务器上启动报The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/local/jdk1.6.0_26/jre/lib/i386/server:/usr/local/jdk1.6.0_26/jre/lib/i386:/usr/local/jdk1.6.0_26/jre/../lib/i386:/usr/java/packages/lib/i386:/lib:/usr/lib
异常解决方法:

apr 与 tomcat-native 提供更好的伸缩性、性能和集成到本地服务器技术。

如果没有apr技术，启动tomcat 时出现如下提示：

信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/jdk1.6.0_06/jre/lib/i386/client:/usr/java/jdk1.6.0_06/jre/lib/i386:/usr/java/jdk1.6.0_06/jre/../lib/i386:/usr/java/packages/lib/i386:/lib:/usr/lib
按照官方说明需要：

APR library
OpenSSL libraries
openssl 可以用 yum install openssl-devel，apr还是下载*.gz来安装。
apr-1.3.2.tar.gz(下载URL:http://www.apache.org/dist/apr/apr-1.4.5.tar.gz)

apr-util-1.3.2.tar.gz(下载URL:http://www.apache.org/dist/apr/apr-util-1.3.12.tar.gz)


tomcat-native.tar.gz 可以在tomcat/bin目录下找到。

安装 apr

wget http://apache.mirror.phpchina.com/apr/apr-1.3.2.tar.gz 
tar zxvf apr-1.3.2.tar.gz 
cd apr-1.3.2 
./configure 
make 
make install 
apr 默认安装在 /usr/local/apr

安装 apr-util

wget http://apache.mirror.phpchina.com/apr/apr-util-1.3.2.tar.gz 
tar zxvf apr-util-1.3.2.tar.gz 
cd apr-util-1.3.2 
./configure --with-apr=/usr/local/apr 
make 
make install 
安装 tomcat-native

cd /usr/local/tomcat-6.0.18/bin 
tar zxvf tomcat-native.tar.gz 
cd tomcat-native-1.1.14-src/jni/native 
./configure --with-apr=/usr/local/apr --with-java-home=/usr/java/jdk1.6.0_11 
make 
make install 
设置 apr 的环境变量：

vi /etc/profile 
# 后面添加以下内容 
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/apr/lib 
# 使profile生效， 
source /etc/profile 
启动 tomcat 后， 看日志：

bin/startup.sh 
head logs/catalina.out 
可以看到以下结果：

信息: Loaded APR based Apache Tomcat Native library 1.1.14.
2009-1-13 11:12:51 org.apache.catalina.core.AprLifecycleListener init
信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].


reference:http://wander312.iteye.com/blog/1132975