I heard that Apr can improve tomcat's performance a lot, and the configuration is as follows
1. Install apr 1.5.2
[root@ecs-3c46 ]# cd /usr/local/src [root@ecs-3c46 src]# wget //apr/apr-1.5. [root@ecs-3c46 src]# tar -xzvf apr-1.5. [root@ecs-3c46 src]# cd apr-1.5.2 [root@ecs-3c46 apr-1.5.2]# ./configure --prefix=/usr/local/apr [root@ecs-3c46 apr-1.5.2]# make [root@ecs-3c46 apr-1.5.2]# make install
2. Install apr-util-1.5.4
[root@ecs-3c46 ]# cd /usr/local/src [root@ecs-3c46 src]# wget /apache//apr/apr-util-1.5. [root@ecs-3c46 src]# tar -xzvf apr-util-1.5. [root@ecs-3c46 src]# cd apr-util-1.5.4 [root@ecs-3c46 apr-util-1.5.4]# ./configure --prefix=/usr/local/apr [root@ecs-3c46 apr-util-1.5.4]# make [root@ecs-3c46 apr-util-1.5.4]# make install
3. If you do not have openssl installed, please install openssl. If you have installed it, continue to the next step.
4. Install the tomcat-native component and found that there are already relevant files under the bin directory of tomcat8.0.44
After decompression, get the tomcat-native-1.2.12-src folder
[root@ecs-3c46 bin]# tar -xzvf [root@ecs-3c46 bin]# cd tomcat-native-1.2.12-src/native [root@ecs-3c46 native]# ./configure --with-apr=/usr/local/apr --with-java-home=/usr/local/java/jdk1.7.0_80 --with-ssl=/usr/local/openssl --prefix=/usr/local/tomcat/apache-tomcat-8.0.44 [root@ecs-3c46 native]# make [root@ecs-3c46 native]# make install
Configuration, default tomcat8.0.44 is enabled Apr, and configuration is performed in Listener node.
<Listener SSLEngine="on" className=""/>
A problem occurred after restarting the tomcat service, indicating that Apr has not been successfully used
27-Jul-2017 15:50:13.488 INFO [main] The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the : /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
Solution:
Create a link to /usr/local/apr/lib/.0.2.12 under /usr/java/packages/lib/amd64 directory
[root@ecs-3c46 native]# cd /usr/java/ [root@ecs-3c46 java]# mkdir packages/ [root@ecs-3c46 java]# cd packages/ [root@ecs-3c46 packages]# mkdir lib [root@ecs-3c46 packages]# cd lib [root@ecs-3c46 lib]# mkdir amd64 [root@ecs-3c46 lib]# cd amd64 [root@ecs-3c46 amd64]# ln -s /usr/local/apr/lib/.0.2.12 [root@ecs-3c46 amd64]# ln -s /usr/local/apr/lib/.0.2.12 .0
6. Restart tomcat. If the following information is displayed, it means that the configuration has been successfully configured.
27-Jul-2017 16:16:29.479 INFO [main] Loaded APR based Apache Tomcat Native library 1.2.12 using APR version 1.5.2. 27-Jul-2017 16:16:29.479 INFO [main] APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true]. 27-Jul-2017 16:16:29.491 INFO [main] OpenSSL successfully initialized (OpenSSL 1.0.2l 25 May 2017)
The above method of using Apr for Tomcat8.0.44 configuration under Linux is all the content I share with you. I hope you can give you a reference and I hope you can support me more.