java+nginx+tomcat+memcache
【java安装】
sh jdk-6u32-linux-x64.bin
mv jdk1.6.0_32/ /usr/local/java
vi /etc/profile
export JAVA_HOME=/usr/local/java
export CLASSPATH=:$JAVA_HOME/lib
export PATH=$PATH:$JAVA_HOME/bin
source /etc/profile
【tomcat安装】----处理jsp动态页面
tar zxf apache-tomcat-7.0.29.tar.gz
mv apache-tomcat-7.0.29 /usr/local/tomcat
cd /usr/local/tomcat/bin/
./startup.sh
访问：http:192.168.0.88:8080
处理jsp动态页面的路径：/usr/local/tomcat/webapps/ROOT
vi test.jsp
the time is <%=new java.util.Date() %>
访问：http:192.168.0.88:8080/test.jsp 测试！
【nginx+tomcat】--nginx将动态页面交给tomcat处理
vi /usr/local/lnmp/nginx/conf/nginx.conf
location ~ \.jsp$ {
proxy_pass http://127.0.0.1:8080;（可以是别的主机）
}
nginx -s reload
【nginx+tomcat实现动态页面的均衡负载】
192.168.0.88：nginx,tomcat
192.168.0.119:tomcat
vi /usr/local/lnmp/nginx/conf/nginx.conf
upstream myproject {
server 192.168.0.119:8080;
server 192.168.0.25:8080;
}
location ~ \.jsp$ {
proxy_pass http://myproject;
}
测试：访问：http://myproject/test.jsp 关闭：192.168.0.88上的tomcat可以继续访问
请求处理图：
client -------> nginx:80(处理静态页面)<-------->tomcat1:8080---\
| <-------->mecache(实现会话序列化)
<--------->tomcat2:8080---/
Tomcat-1 (T1) 将 session 存储在 memcached-2 (T2)上。只有当 M2 不可用时,T1 才将 session 存
储在 memcached-1 上(M1 是 T1 failoverNode)。使用这种配置的好处是,当 T1 和 M1 同时崩
溃时也不会丢失 session 会话,避免单点故障。
【sticky模块加载】
./configure --with-http_stub_status_module --with-http_ssl_module --user=nginx --group=nignx --prefix=/usr/local/lnmp/nginx/ --add-module=/root/nginx-sticky-module-1.0
make && make install
vi /usr/local/lnmp/nginx/conf/nginx.conf
upstream myproject {
sticky;
server 192.168.0.119:8080;
server 192.168.0.88:8080;
}
nginx -s reload
测试脚本：test.jsp
*********************************************************************
<%@ page contentType="text/html; charset=GBK" %>
<%@ page import="java.util.*" %>
<html><head><title>Cluster App Test</title></head>
<body>
Server Info:
<%
out.println(request.getLocalAddr() + " : " + request.getLocalPort()+"<br>");%>
<%
out.println("<br> ID " + session.getId()+"<br>");
String dataName = request.getParameter("dataName");
if (dataName != null && dataName.length() > 0) {
String dataValue = request.getParameter("dataValue");
session.setAttribute(dataName, dataValue);
}
out.print("<b>Session list</b>");
Enumeration e = session.getAttributeNames();
while (e.hasMoreElements()) {
String name = (String)e.nextElement();
String value = session.getAttribute(name).toString();
out.println( name + " = " + value+"<br>");
System.out.println( name + " = " + value);
}
%>
<form action="test.jsp" method="POST">
name:<input type=text size=20 name="dataName">
<br>
key:<input type=text size=20 name="dataValue">
<br>
<input type=submit>
</form>
</body>
</html>
***********************************************************************
访问：http://desktop88.example.com/test.jsp 观察会话，关闭一方的tomcat
【nginx+tomcat+memcache】
把如下软件包放置到/usr/local/tomcat/lib 目录中
kryo-1.03.jar
kryo-serializers-0.8.jar
memcached-2.5.jar
memcached-session-manager-1.5.1.jar
memcached-session-manager-tc7-1.5.1.jar
minlog-1.2.jar
msm-kryo-serializer-1.5.1.jar
reflectasm-0.9.jar
在192.168.0.88
vim /usr/local/tomcat/conf/context.xml
<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"
memcachedNodes="n1:192.168.0.88:11211,n2:192.168.0.119:11211"
failoverNodes="n1" （在192.168.0.119上是n2）
requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"
transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory"
/>
双机：yum install memcached -y
/etc/init.d/memcached start
测试：关闭访问到的tomcat,看会话是否能继续！
注意：
【查看memcache信息】
在访问192.168.0.88时，它的数据存储在192.168.0.119的memcache中（通过端口11211）
[root@server25 bin]# telnet localhost 11211
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
stats items
STAT items:5:number 1
STAT items:5:age 37
STAT items:5:evicted 0
STAT items:5:evicted_nonzero 0
STAT items:5:evicted_time 0
STAT items:5:outofmemory 0
STAT items:5:tailrepairs 0
END
stats cachedump 5 0
ITEM 32F14C81BF8100FF382AF4C5D1725628-n2 [126 b; 1346918092 s]
END
get 32F14C81BF8100FF382AF4C5D1725628-n2
VALUE 32F14C81BF8100FF382AF4C5D1725628-n2 2048 126
S9?w?w9?w?019?w??9?w??#32F14C81BF8100FF382AF4C5D1725628-n2degrsgwuser2westosuser1westos
END
mv jdk1.6.0_32/ /usr/local/java
vi /etc/profile
export JAVA_HOME=/usr/local/java
export CLASSPATH=:$JAVA_HOME/lib
export PATH=$PATH:$JAVA_HOME/bin
source /etc/profile
【tomcat安装】----处理jsp动态页面
tar zxf apache-tomcat-7.0.29.tar.gz
mv apache-tomcat-7.0.29 /usr/local/tomcat
cd /usr/local/tomcat/bin/
./startup.sh
访问：http:192.168.0.88:8080
处理jsp动态页面的路径：/usr/local/tomcat/webapps/ROOT
vi test.jsp
the time is <%=new java.util.Date() %>
访问：http:192.168.0.88:8080/test.jsp 测试！
【nginx+tomcat】--nginx将动态页面交给tomcat处理
vi /usr/local/lnmp/nginx/conf/nginx.conf
location ~ \.jsp$ {
proxy_pass http://127.0.0.1:8080;（可以是别的主机）
}
nginx -s reload
【nginx+tomcat实现动态页面的均衡负载】
192.168.0.88：nginx,tomcat
192.168.0.119:tomcat
vi /usr/local/lnmp/nginx/conf/nginx.conf
upstream myproject {
server 192.168.0.119:8080;
server 192.168.0.25:8080;
}
location ~ \.jsp$ {
proxy_pass http://myproject;
}
测试：访问：http://myproject/test.jsp 关闭：192.168.0.88上的tomcat可以继续访问
请求处理图：
client -------> nginx:80(处理静态页面)<-------->tomcat1:8080---\
| <-------->mecache(实现会话序列化)
<--------->tomcat2:8080---/
Tomcat-1 (T1) 将 session 存储在 memcached-2 (T2)上。只有当 M2 不可用时,T1 才将 session 存
储在 memcached-1 上(M1 是 T1 failoverNode)。使用这种配置的好处是,当 T1 和 M1 同时崩
溃时也不会丢失 session 会话,避免单点故障。
【sticky模块加载】
./configure --with-http_stub_status_module --with-http_ssl_module --user=nginx --group=nignx --prefix=/usr/local/lnmp/nginx/ --add-module=/root/nginx-sticky-module-1.0
make && make install
vi /usr/local/lnmp/nginx/conf/nginx.conf
upstream myproject {
sticky;
server 192.168.0.119:8080;
server 192.168.0.88:8080;
}
nginx -s reload
测试脚本：test.jsp
*********************************************************************
<%@ page contentType="text/html; charset=GBK" %>
<%@ page import="java.util.*" %>
<html><head><title>Cluster App Test</title></head>
<body>
Server Info:
<%
out.println(request.getLocalAddr() + " : " + request.getLocalPort()+"<br>");%>
<%
out.println("<br> ID " + session.getId()+"<br>");
String dataName = request.getParameter("dataName");
if (dataName != null && dataName.length() > 0) {
String dataValue = request.getParameter("dataValue");
session.setAttribute(dataName, dataValue);
}
out.print("<b>Session list</b>");
Enumeration e = session.getAttributeNames();
while (e.hasMoreElements()) {
String name = (String)e.nextElement();
String value = session.getAttribute(name).toString();
out.println( name + " = " + value+"<br>");
System.out.println( name + " = " + value);
}
%>
<form action="test.jsp" method="POST">
name:<input type=text size=20 name="dataName">
<br>
key:<input type=text size=20 name="dataValue">
<br>
<input type=submit>
</form>
</body>
</html>
***********************************************************************
访问：http://desktop88.example.com/test.jsp 观察会话，关闭一方的tomcat
【nginx+tomcat+memcache】
把如下软件包放置到/usr/local/tomcat/lib 目录中
kryo-1.03.jar
kryo-serializers-0.8.jar
memcached-2.5.jar
memcached-session-manager-1.5.1.jar
memcached-session-manager-tc7-1.5.1.jar
minlog-1.2.jar
msm-kryo-serializer-1.5.1.jar
reflectasm-0.9.jar
在192.168.0.88
vim /usr/local/tomcat/conf/context.xml
<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"
memcachedNodes="n1:192.168.0.88:11211,n2:192.168.0.119:11211"
failoverNodes="n1" （在192.168.0.119上是n2）
requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"
transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory"
/>
双机：yum install memcached -y
/etc/init.d/memcached start
测试：关闭访问到的tomcat,看会话是否能继续！
注意：
【查看memcache信息】
在访问192.168.0.88时，它的数据存储在192.168.0.119的memcache中（通过端口11211）
[root@server25 bin]# telnet localhost 11211
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
stats items
STAT items:5:number 1
STAT items:5:age 37
STAT items:5:evicted 0
STAT items:5:evicted_nonzero 0
STAT items:5:evicted_time 0
STAT items:5:outofmemory 0
STAT items:5:tailrepairs 0
END
stats cachedump 5 0
ITEM 32F14C81BF8100FF382AF4C5D1725628-n2 [126 b; 1346918092 s]
END
get 32F14C81BF8100FF382AF4C5D1725628-n2
VALUE 32F14C81BF8100FF382AF4C5D1725628-n2 2048 126
S9?w?w9?w?019?w??9?w??#32F14C81BF8100FF382AF4C5D1725628-n2degrsgwuser2westosuser1westos
END