在mysql中手工導入sql文件，
root@vps968:/home/tomcat# mysql -u root -p
Enter password:
mysql> source /home/tomcat/localhost.sql
裝memcached，如下：
wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
wget http://memcached.googlecode.com/files/memcached-1.4.15.tar.gz
tar zxf libevent-2.0.21-stable.tar.gz
cd libevent-2.0.21-stable
./configure --prefix=/usr
make
make install
tar zxf memcached-1.4.15.tar.gz
cd memcached-1.4.15
./configure --with-libevent=/usr
make
make install
下面摘錄一段memcached的說明：
memcached的基本設置：
1.啓動Memcache的服務器端：
# /usr/local/bin/memcached -d -m 10 -u root -l 192.168.0.200 -p 12000 -c 256 -P /tmp/memcached.pid
-d選項是啓動一個守護進程，
-m是分配給Memcache使用的內存數量，單位是MB，我這裏是10MB，
-u是運行Memcache的用戶，我這裏是root，
-l是監聽的服務器IP地址，如果有多個地址的話，我這裏指定了服務器的IP地址192.168.0.200，
-p是設置Memcache監聽的端口，我這裏設置了12000，最好是1024以上的端口，
-c選項是最大運行的併發連接數，默認是1024，我這裏設置了256，按照你服務器的負載量來設定，
-P是設置保存Memcache的pid文件，我這裏是保存在 /tmp/memcached.pid，
2.如果要結束Memcache進程，執行：
# kill `cat /tmp/memcached.pid`也可以啓動多個守護進程，不過端口不能重複。
下面把memcached for tomcat搞定，切換到tomcat用戶，
wget http://memcached-session-manager.googlecode.com/files/memcached-session-manager-1.6.3.jar
wget http://memcached-session-manager.googlecode.com/files/memcached-session-manager-tc6-1.6.3.jar
wget http://memcached-session-manager.googlecode.com/files/msm-kryo-serializer-1.6.3.jar
wget http://memcached-session-manager.googlecode.com/files/msm-javolution-serializer-1.6.3.jar
wget http://memcached-session-manager.googlecode.com/files/msm-xstream-serializer-1.6.3.jar
wget http://memcached-session-manager.googlecode.com/files/msm-flexjson-serializer-1.6.3.jar
wget https://spymemcached.googlecode.com/files/spymemcached-2.8.4.jar
wget http://memcached-session-manager.googlecode.com/files/javolution-5.4.3.1.jar
cp *.jar tomcat1/lib/
cp *.jar tomcat2/lib/
cp *.jar tomcat3/lib/
繼續改tomcat配置，server.xml裏<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat1">3個Tomcat的jvmRoute分別爲：tomcat1、tomcat2、tomcat3
context.xml裏，<Context>標籤內增加下面一段，kryo始終不行，算了，換一個javolution了。
<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"
memcachedNodes="n1:127.0.0.1:12000"
sticky="false"
lockingMode="auto"
sessionBackupAsync="false"
sessionBackupTimeout="1000"
transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory"
/>
<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"
memcachedNodes="n1:localhost:12000"
requestUriIgnorePattern=".*\.(png|gif|jpg|css|js)$"
sessionBackupAsync="false"
sessionBackupTimeout="1000"
transcoderFactoryClass="de.javakaffee.web.msm.serializer.javolution.JavolutionTranscoderFactory"
copyCollectionsForSerialization="false"
/>
最後配置nginx，配置文件在/usr/local/nginx/conf/nginx.conf，
先改成這樣：
...
upstream www.xxxx.net {
server 127.0.0.1:8080 srun_id=tomcat1;
server 127.0.0.1:18080 srun_id=tomcat2;
server 127.0.0.1:28080 srun_id=tomcat3;
jvm_route $cookie_JSESSIONID|sessionid reverse;
}
server {
listen 80;
server_name www.xxxx.net;
charset utf-8;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
proxy_pass http://www.xxxx.net;
proxy_redirect off;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
client_max_body_size 100m;
}
location ~ ^/(WEB-INF)/ {
deny all;
}
...
重啓tomcat、nginx。搞定。