tomcat9 更換運行模式為 Apr 模式
阿新 • • 發佈:2018-01-24
oca wget 服務器 catalina info main ups com 創建 Tomcat支持三種接收請求的處理方式:BIO、NIO、APR 。
1. BIO由於每個請求都要創建一個線程來處理,線程開銷比較大,不能再高並發的場景,性能也是最低的。
2. NIO是一個基於緩沖區、並能提供非阻塞I/O操作的Java API,比傳統的bio更好的並發性能。
3. APR(Apache Portable Run-time libraries)簡單理解,就是從操作系統級別解決異步IO問題,大幅度的提高服務器的處理和響應性能, 也是Tomcat運行高並發應用的首選模式。
所需軟件
* apr
* apr-iconv
* apr-util
* tomcat-native
安裝軟件
yum install -y apr-devel openssl-devel gcc make expat-devel libtool
cd /usr/local/src wget https://mirrors.cnnic.cn/apache/apr/apr-1.6.3.tar.gz tar xf apr-1.6.3.tar.gz cd apr-1.6.3/ ./configure --prefix=/usr/local/apr make && make install cd /usr/local/src wget https://mirrors.cnnic.cn/apache/apr/apr-iconv-1.2.2.tar.gz tar xf apr-iconv-1.2.2.tar.gz cd apr-iconv-1.2.2/ ./configure --with-apr=/usr/local/apr --prefix=/usr/local/apr-iconv make && make install cd /usr/local/src wget https://mirrors.cnnic.cn/apache/apr/apr-util-1.6.1.tar.gz tar xf apr-util-1.6.1.tar.gz cd apr-util-1.6.1/ ./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr --with-apr-iconv=/usr/local/apr-iconv/bin/apriconv make && make install cd /usr/local/tomcat/bin/ tar xf tomcat-native.tar.gz cd /usr/local/tomcat/bin/tomcat-native-1.2.16-src/native ./configure --with-apr=/usr/local/apr --with-java-home=/usr/local/jdk8.0 make && make install echo ‘export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/apr/lib export LD_RUN_PATH=$LD_RUN_PATH:/usr/local/apr/lib‘ >> /etc/profile source /etc/profile
修改配置
vim /usr/local/tomcat/conf/server.xml <Connector port="80" protocol="org.apache.coyote.http11.Http11AprProtocol" maxThreads="1000" minSpareThreads="100" acceptCount="900" disableUploadTimeout="true" connectionTimeout="20000" URIEncoding="UTF-8" enableLookups="false" redirectPort="8443" compression="on" compressionMinSize="1024" /> <!-- Define an AJP 1.3 Connector on port 8009 --> ##註釋掉下面那行,如果不用apache <!-- <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> -->
測試
/usr/local/tomcat/bin/catalina.sh run
24-Jan-2018 21:39:17.695 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-apr-80"]
tomcat9 更換運行模式為 Apr 模式