Tomcat 安裝與優化

1. JVM 配置

• 添加 tomcat 管理員

[root@server ~]# vim /tomcat/conf/tomcat-users.xml

<role rolename="manager-gui"/>
<role rolename="admin-gui"/>
<user username="manager" password="manager" roles="admin-gui,manager-gui"/>

• 修改 JVM 虛擬內存

JAVA_OPTS="-server -Xms1024m -Xmx1024m -Xmn256m -XX:PermSize=512m -XX:MaxPermSize=1024m -Djava.awt.headless=true -Dfile.encoding=utf-8"

2. apr 安裝

• 安裝依賴

[root@server ~]# yum -y install gcc expat-devel

• 安裝 apr

[root@server ~]# mkdir /usr/local/apr
[root@server apr-1.6.3]# ./configure --prefix=/usr/local/apr
[root@server apr-1.6.3]# make && make install

• 安裝 apr-util

[root@server apr-util-1.6.1]# ./configure --prefix=/usr/local/apr --with-apr=/usr/local/apr
[root@server apr-util-1.6.1]# make && make install

• 安裝 tomcat-native

[root@server ~]# cd tomcat-native-1.2.17-src/native/
[root@server native]# ./configure --prefix=/usr/local/apr --with-apr=/usr/local/apr --with-java-home=/usr/java/jdk1.7.0_80/
[root@server native]# make && make install

• 修改 tomcat 配置

[root@server ~]# vim /tomcat/bin/catalina.sh

# 添加 CATALINA_OPTS
CATALINA_OPTS="-Djava.library.path=/usr/local/apr/lib"

[root@server ~]# vim /tomcat/conf/server.xml

<Connector port="8001"
    protocol="org.apache.coyote.http11.Http11AprProtocol"
    executor="tomcatThreadPool"
    maxThreads="1000"
    enableLookups="false"
    acceptCount="1000"
    connectionTimeout="30000"
    redirectPort="9100"
    maxPostSize="8388608"
    maxParameterCount="40000"
    disableUploadTimeout="true"
    URIEncoding="UTF-8"/>

3. SSLEngine Error

• 查看 tomcat 日誌，出現 SSLEngine Error org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Failed to initialize the SSLEngine. {:.error}

• 解決辦法

[root@server ~]# vim /tomcat/conf/server.xml

<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="off" />