tomcat native
Tomcat Native 这个项目可以让 Tomcat 使用 Apache 的 apr 包来处理包括文件和网络IO操作，以提升性能。Tomcat Native 是利用 APR 来提升Tomcat性能的本地API。软件下载地址：http://tomcat.apache.org/download-native.cgi 或者在二进制版本包内的bin目录下软件相关的包。建议使用比较新一些的版本，有一个版本有bug，网上搜索一下就知道。
安装环境需求：Development Tools 需要安装这个组的包 apr apr-devel openssl相关包
安装过程：
查询是否安装Development Tool
# yum grouplist
Loaded plugins: fastestmirror
Setting up Group Process
Loading mirror speeds from cached hostfile
addons
Installed Groups:
Development Libraries
Development Tools 需要安装这个组的包
Dialup Networking Support
查看安装那些apr包
# rpm -qa|grep apr
apr-1.2.7-11.el5_6.5
apr-1.2.7-11.el5_6.5
apr-util-1.2.7-11.el5_5.2
apr-util-1.2.7-11.el5_5.2
查看安装那些openssl包
# rpm -qa|grep openssl
openssl-0.9.8e-20.el5
openssl-devel-0.9.8e-20.el5
openssl-devel-0.9.8e-20.el5
openssl-0.9.8e-20.el5
经查看发现少了apr-devel包，直接yum安装
# yum install apr-devel
Loaded plugins: fastestmirror
Existing lock /var/run/yum.pid: another copy is running as pid 28125.
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: yum
Memory :19 M RSS (236 MB VSZ)
Started: Thu Jun 27 00:46:45 2013 - 00:41 ago
State: Sleeping, pid: 28125
Loading mirror speeds from cached hostfile
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package apr-devel.i386 0:1.2.7-11.el5_6.5 set to be updated
---> Package apr-devel.x86_64 0:1.2.7-11.el5_6.5 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
=====================================================================================================================
Package Arch Version Repository Size
=====================================================================================================================
Installing:
apr-devel i386 1.2.7-11.el5_6.5 base 233 k
apr-devel x86_64 1.2.7-11.el5_6.5 base 238 k
Transaction Summary
=====================================================================================================================
Install 2 Package(s)
Upgrade 0 Package(s)
Total download size: 471 k
Is this ok : y
Downloading Packages:
(1/2): apr-devel-1.2.7-11.el5_6.5.i386.rpm | 233 kB 00:00
(2/2): apr-devel-1.2.7-11.el5_6.5.x86_64.rpm | 238 kB 00:00
---------------------------------------------------------------------------------------------------------------------
Total 12 kB/s | 471 kB 00:40
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : apr-devel 1/2
Installing : apr-devel 2/2
Installed:
apr-devel.i386 0:1.2.7-11.el5_6.5 apr-devel.x86_64 0:1.2.7-11.el5_6.5
Complete!
安装native（我使用的是tomcat二进制包bin目录下的包）
# pwd
/usr/local/tomcat6/bin
# ls
bootstrap.jar commons-daemon-native.tar.gzsetclasspath.shtomcat-juli.jar version.sh
catalina.bat cpappend.bat shutdown.bat tomcat-native.tar.gz
catalina.sh digest.bat shutdown.sh tool-wrapper.bat
catalina-tasks.xmldigest.sh startup.bat tool-wrapper.sh
commons-daemon.jarsetclasspath.bat startup.sh version.bat
# tar zxf tomcat-native.tar.gz
# ls
bootstrap.jar commons-daemon-native.tar.gzsetclasspath.shtomcat-juli.jar version.bat
catalina.bat cpappend.bat shutdown.bat tomcat-native-1.1.22-srcversion.sh
catalina.sh digest.bat shutdown.sh tomcat-native.tar.gz
catalina-tasks.xmldigest.sh startup.bat tool-wrapper.bat
commons-daemon.jarsetclasspath.bat startup.sh tool-wrapper.sh
# cd tomcat-native-1.1.22-src/
CHANGELOG.txtjni/ KEYS LICENSE NOTICE README.txt
# cd tomcat-native-1.1.22-src/jni/native/
# ./configure --with-apr=/usr --with-ssl
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... x86_64-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking for working mkdir -p... yes
Tomcat Native Version: 1.1.22
checking for chosen layout... tcnative
checking for APR... yes
setting CC to "gcc"
setting CPP to "gcc -E"
checking for JDK location (please wait)... /usr/local/jdk1.6.0_43 from environment
checking Java platform... checking Java platform...
checking for sablevm... NONE
adding "-I/usr/local/jdk1.6.0_43/include" to TCNATIVE_PRIV_INCLUDES
checking os_type directory...linux
adding "-I/usr/local/jdk1.6.0_43/include/linux" to TCNATIVE_PRIV_INCLUDES
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for OpenSSL library... using openssl from /usr/lib and /usr/include
checking OpenSSL library version... ok
checking for OpenSSL DSA support... yes
setting TCNATIVE_LDFLAGS to "-lssl -lcrypto"
adding "-DHAVE_OPENSSL" to CFLAGS
setting TCNATIVE_LIBS to ""
setting TCNATIVE_LIBS to " /usr/lib64/libapr-1.la-lpthread -ldl"
configure: creating ./config.status
config.status: creating tcnative.pc
config.status: creating Makefile
config.status: executing default commands
#make && make install
更新共享库
# echo "/usr/local/apr/lib" >> /etc/ld.so.conf
# ldconfig
检查是否安装好
# ldconfig -v|grep native
libtcnative-1.so.0 -> libtcnative-1.so.0.1.22
到此，tomcat native已经安装完成
爱——不是想出来的，爱——是做出来的!! 学习了，谢谢分享、、、 看帖回帖是美德！:lol 学习了，谢谢分享、、、 丑，但是丑的特别，也就是特别的丑！ 我不在江湖,但江湖中有我的传说。
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