The APR based Apache Tomcat Native library ...異常

tomat在linux服務器上啓動報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
異常解決方法: 

apr 與 tomcat-native 提供更好的伸縮性、性能和集成到本地服務器技術。 

若是沒有apr技術，啓動tomcat 時出現以下提示： 

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
按照官方說明須要： 

APR library 
OpenSSL libraries 
openssl 能夠用 yum install openssl-devel，apr仍是下載*.gz來安裝。 
apr-1.3.2.tar.gz(下載URL:http://www.apache.org/dist/apr/apr-1.4.5.tar.gz) 

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


tomcat-native.tar.gz 能夠在tomcat/bin目錄下找到。 

安裝 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 默認安裝在 /usr/local/apr 

安裝 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  
安裝 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  
設置 apr 的環境變量： 

vi /etc/profile  
# 後面添加如下內容  
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/apr/lib  
# 使profile生效，  
source /etc/profile  
啓動 tomcat 後， 看日誌： 

bin/startup.sh  
head logs/catalina.out  
能夠看到如下結果： 

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].