Centos 6.7 Tomcat Session集群

时间：2015-11-01 19:48:10 阅读：356 评论：0 收藏：0 [点我收藏+]

标签：服务器客户端信息影响结构图

规划结构图

nginx接收用户请求反向代理至后端应用服务器

应用服务器或者session服务器其中一台宕机，不影响客户端会话的信息

OS:CentOS release 6.7 (Final)

Memcached设置

两台memcached1 2 各进行配置

1.安装memcached

[root@Memcached1 ~]# yum install memcached

[root@Memcachd2 ~]# yum install memcached

2.启动服务

[root@Memcached1 ~]# service memcachedstart

Starting memcached: [ OK ]

[root@Memcachd2 ~]# service memcached start

Starting memcached: [ OK ]

3.测试

[root@Memcached1 ~]# ss -tln

State Recv-Q Send-Q Local Address:Port Peer Address:Port

LISTEN 0 128 :::11211 :::*

LISTEN 0 128 *:11211 *:*

]# telnet 192.168.1.180 11211

Trying 192.168.1.180...

Connected to 192.168.1.180.

Escape character is ‘^]‘.

quit

Connection closed by foreign host.

[root@Memcachd2 ~]# ss –tln

State Recv-Q Send-Q Local Address:Port Peer Address:Port

LISTEN 0 128 :::11211 :::*

LISTEN 0 128 *:11211 *:*

]# telnet 192.168.1.190 11211

Trying 192.168.1.190...

Connected to 192.168.1.190.

Escape character is ‘^]‘.

quit

Connection closed by foreign host.

Tomcat设置

1.TomcatA B 安装

参照tomcat基本安装

2.上传jar文件

分别把依赖包上传到 Tomcat A B

]# pwd

/usr/local/tomcat/lib

3.TomcatA 设置

3.1创建目录

[root@TomcatA lib]# mkdir -pv /usr/local/tomcat/webapps/test/WEB-INF/{classes,lib}

mkdir: created directory `/usr/local/tomcat/webapps/test‘

mkdir: created directory `/usr/local/tomcat/webapps/test/WEB-INF‘

mkdir: created directory `/usr/local/tomcat/webapps/test/WEB-INF/classes‘

mkdir: created directory `/usr/local/tomcat/webapps/test/WEB-INF/lib‘

修改权限

[root@TomcatA lib]# chown -R tomcat /usr/local/tomcat/webapps/test/

3.2 创建主页内容

]# vim /usr/local/tomcat/webapps/test/index.jsp

<%@ page language="java" %>

<html>

<head><title>TomcatA</title></head>

<body>

<h1><font color="palevioletred ">TomcatA.zrd.com</font></h1>

<tr>

<td>Session ID</td>

<% session.setAttribute("zrd.com","zrd.com"); %>

</tr>

<tr>

<td>Created on</td>

</tr>

</table>

</body>

</html>

3.3 修改server.xml

高亮部分为添加的内容其他不要修改

[root@TomcatA conf]# vim /usr/local/tomcat/conf/server.xml

<?xml version=‘1.0‘ encoding=‘utf-8‘?>

<!--

Licensed to the Apache Software Foundation (ASF) under one or more

contributor license agreements. See the NOTICE file distributed with

this work for additional information regarding copyright ownership.

The ASF licenses this file to You under the Apache License, Version 2.0

(the "License"); you may not use this file except in compliance with

the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software

distributed under the License is distributed on an "AS IS" BASIS,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

See the License for the specific language governing permissions and

limitations under the License.

-->

<!-- Note: A "Server" is not itself a "Container", so you may not

define subcomponents such as "Valves" at this level.

Documentation at /docs/config/server.html

-->

<!-- Security listener. Documentation at /docs/config/listeners.html

-->

<!-- Global JNDI resources

Documentation at /docs/jndi-resources-howto.html

-->

<!-- Editable user database that can also be used by

UserDatabaseRealm to authenticate users

-->

<Resource name="UserDatabase" auth="Container"

type="org.apache.catalina.UserDatabase"

description="User database that can be updated and saved"

factory="org.apache.catalina.users.MemoryUserDatabaseFactory"

pathname="conf/tomcat-users.xml" />

</GlobalNamingResources>

<!-- A "Service" is a collection of one or more "Connectors" that share

a single "Container" Note: A "Service" is not itself a "Container",

so you may not define subcomponents such as "Valves" at this level.

Documentation at /docs/config/service.html

-->

<!--

<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"

maxThreads="150" minSpareThreads="4"/>

-->

<!-- A "Connector" represents an endpoint by which requests are received

and responses are returned. Documentation at :

Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)

Java AJP Connector: /docs/config/ajp.html

APR (HTTP/AJP) Connector: /docs/apr.html

Define a non-SSL HTTP/1.1 Connector on port 8080

-->

<Connector port="8080" protocol="HTTP/1.1"

connectionTimeout="20000"

redirectPort="8443" />

<!--

<Connector executor="tomcatThreadPool"

port="8080" protocol="HTTP/1.1"

connectionTimeout="20000"

redirectPort="8443" />

-->

<!-- Define a SSL HTTP/1.1 Connector on port 8443

This connector uses the BIO implementation that requires the JSSE

style configuration. When using the APR/native implementation, the

OpenSSL style configuration is required as described in the APR/native

documentation -->

<!--

<Connector port="8443" protocol="org.apache.coyote.http11.Http11Protocol"

maxThreads="150" SSLEnabled="true" scheme="https" secure="true"

clientAuth="false" sslProtocol="TLS" />

-->

<!-- An Engine represents the entry point (within Catalina) that processes

every request. The Engine implementation for Tomcat stand alone

analyzes the HTTP headers included with the request, and passes them

on to the appropriate Host (virtual host).

Documentation at /docs/config/engine.html -->

<!-- You should set jvmRoute to support load-balancing via AJP ie :

-->

<!--For clustering, please take a look at documentation at:

/docs/cluster-howto.html (simple how to)

/docs/config/cluster.html (reference documentation) -->

<!--

-->

<!-- Use the LockOutRealm to prevent attempts to guess user passwords

via a brute-force attack -->

<!-- This Realm uses the UserDatabase configured in the global JNDI

resources under the key "UserDatabase". Any edits

that are performed against this UserDatabase are immediately

available for use by the Realm. -->

<Realm className="org.apache.catalina.realm.UserDatabaseRealm"

resourceName="UserDatabase"/>

</Realm>

<Host name="localhost" appBase="webapps"

unpackWARs="true" autoDeploy="true">

<!-- SingleSignOn valve, share authentication between web applications

Documentation at: /docs/config/valve.html -->

<!--

-->

<!-- Access log processes all example.

Documentation at: /docs/config/valve.html

Note: The pattern used is equivalent to using pattern="common" -->

<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"

prefix="localhost_access_log." suffix=".txt"

pattern="%h %l %u %t "%r" %s %b" />

<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"

memcachedNodes=" memcached1:192.168.1.180:11211,memcached2:192.168.1.190:11211 "

failoverNodes=" memcached1 "

requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"

transcoderFactoryClass="de.javakaffee.web.msm.serializer.javolution.JavolutionTranscoderFactory"

</Context>

</Host>

</Engine>

</Service>

</Server>

4.TomcatB 设置

4.1创建目录

[root@TomcatB classes]# mkdir -pv /usr/local/tomcat/webapps/test/WEB-INF/{classes,lib}

mkdir: created directory `/usr/local/tomcat/webapps/test‘

mkdir: created directory `/usr/local/tomcat/webapps/test/WEB-INF‘

mkdir: created directory `/usr/local/tomcat/webapps/test/WEB-INF/classes‘

mkdir: created directory `/usr/local/tomcat/webapps/test/WEB-INF/lib‘

4.2创建主页内容

#]vim /usr/local/tomcat/webapps/test/index.jsp

<%@ page language="java" %>

<html>

<head><title>TomcatB</title></head>

<body>

<h1><font color="skyblue">TomcatB.zrd.com</font></h1>

<tr>

<td>Session ID</td>

<% session.setAttribute("magedu.com","magedu.com"); %>

</tr>

<tr>

<td>Created on</td>

</tr>

</table>

</body>

</html>

4.3 修改server.xml

添加高亮部分内容，其他不用改动

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

<?xml version=‘1.0‘ encoding=‘utf-8‘?>

<!--

Licensed to the Apache Software Foundation (ASF) under one or more

contributor license agreements. See the NOTICE file distributed with

this work for additional information regarding copyright ownership.

The ASF licenses this file to You under the Apache License, Version 2.0

(the "License"); you may not use this file except in compliance with

the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software

distributed under the License is distributed on an "AS IS" BASIS,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

See the License for the specific language governing permissions and

limitations under the License.

-->

<!-- Note: A "Server" is not itself a "Container", so you may not

define subcomponents such as "Valves" at this level.

Documentation at /docs/config/server.html

-->

<!-- Security listener. Documentation at /docs/config/listeners.html

-->

<!-- Global JNDI resources

Documentation at /docs/jndi-resources-howto.html

-->

<!-- Editable user database that can also be used by

UserDatabaseRealm to authenticate users

-->

<Resource name="UserDatabase" auth="Container"

type="org.apache.catalina.UserDatabase"

description="User database that can be updated and saved"

factory="org.apache.catalina.users.MemoryUserDatabaseFactory"

pathname="conf/tomcat-users.xml" />

</GlobalNamingResources>

<!-- A "Service" is a collection of one or more "Connectors" that share

a single "Container" Note: A "Service" is not itself a "Container",

so you may not define subcomponents such as "Valves" at this level.

Documentation at /docs/config/service.html

-->

<!--

<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"

maxThreads="150" minSpareThreads="4"/>

-->

<!-- A "Connector" represents an endpoint by which requests are received

and responses are returned. Documentation at :

Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)

Java AJP Connector: /docs/config/ajp.html

APR (HTTP/AJP) Connector: /docs/apr.html

Define a non-SSL HTTP/1.1 Connector on port 8080

-->

<Connector port="8080" protocol="HTTP/1.1"

connectionTimeout="20000"

redirectPort="8443" />

<!--

<Connector executor="tomcatThreadPool"

port="8080" protocol="HTTP/1.1"

connectionTimeout="20000"

redirectPort="8443" />

-->

<!-- Define a SSL HTTP/1.1 Connector on port 8443

This connector uses the BIO implementation that requires the JSSE

style configuration. When using the APR/native implementation, the

OpenSSL style configuration is required as described in the APR/native

documentation -->

<!--

<Connector port="8443" protocol="org.apache.coyote.http11.Http11Protocol"

maxThreads="150" SSLEnabled="true" scheme="https" secure="true"

clientAuth="false" sslProtocol="TLS" />

-->

<!-- An Engine represents the entry point (within Catalina) that processes

every request. The Engine implementation for Tomcat stand alone

analyzes the HTTP headers included with the request, and passes them

on to the appropriate Host (virtual host).

Documentation at /docs/config/engine.html -->

<!-- You should set jvmRoute to support load-balancing via AJP ie :

-->

<!--For clustering, please take a look at documentation at:

/docs/cluster-howto.html (simple how to)

/docs/config/cluster.html (reference documentation) -->

<!--

-->

<!-- Use the LockOutRealm to prevent attempts to guess user passwords

via a brute-force attack -->

<!-- This Realm uses the UserDatabase configured in the global JNDI

resources under the key "UserDatabase". Any edits

that are performed against this UserDatabase are immediately

available for use by the Realm. -->

<Realm className="org.apache.catalina.realm.UserDatabaseRealm"

resourceName="UserDatabase"/>

</Realm>

<Host name="localhost" appBase="webapps"

unpackWARs="true" autoDeploy="true">

<!-- SingleSignOn valve, share authentication between web applications

Documentation at: /docs/config/valve.html -->

<!--

-->

<!-- Access log processes all example.

Documentation at: /docs/config/valve.html

Note: The pattern used is equivalent to using pattern="common" -->

<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"

prefix="localhost_access_log." suffix=".txt"

pattern="%h %l %u %t "%r" %s %b" />

<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"

memcachedNodes=" memcached1:192.168.1.180:11211,memcached2:192.168.1.190:11211"

failoverNodes=" memcached1"

requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"

transcoderFactoryClass="de.javakaffee.web.msm.serializer.javolution.JavolutionTranscoderFactory"

</Context>

</Host>

</Engine>

</Service>

</Server>

proxy设置

使用nginx作为反向代理服务器

1.安装

需要配置epel源(http://mirrors.sohu.com/fedora-epel/6/x86_64/ )

yum install nginx

2.修改配置文件

高亮部分为添加的内容，其他不动

[root@zrd0 nginx]# cat /etc/nginx/nginx.conf

# For more information on configuration, see:

# * Official English Documentation: http://nginx.org/en/docs/

# * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;

worker_processes 1;

error_log /var/log/nginx/error.log;

#error_log /var/log/nginx/error.log notice;

#error_log /var/log/nginx/error.log info;

pid /run/nginx.pid;

events {

worker_connections 1024;

}

http {

include /etc/nginx/mime.types;

default_type application/octet-stream;

log_format main ‘$remote_addr - $remote_user [$time_local] "$request" ‘

‘$status $body_bytes_sent "$http_referer" ‘

‘"$http_user_agent" "$http_x_forwarded_for"‘;

access_log /var/log/nginx/access.log main;

sendfile on;

#tcp_nopush on;

#keepalive_timeout 0;

keepalive_timeout 65;

#gzip on;

# Load modular configuration files from the /etc/nginx/conf.d directory.

# See http://nginx.org/en/docs/ngx_core_module.html#include

# for more information.

include /etc/nginx/conf.d/*.conf;

index index.html index.htm;

upstream tomcats {

# ip_hash;

server 192.168.1.150:8080;

server 192.168.1.160:8080;

}

server {

listen 80;

server_name localhost;

root /usr/share/nginx/html;

#charset koi8-r;

#access_log /var/log/nginx/host.access.log main;

location / {

proxy_pass http://tomcats/;

}

# redirect server error pages to the static page /40x.html

error_page 404 /404.html;

location = /40x.html {

}

# redirect server error pages to the static page /50x.html

error_page 500 502 503 504 /50x.html;

location = /50x.html {

}

# proxy the PHP scripts to Apache listening on 127.0.0.1:80

#location ~ \.php$ {

# proxy_pass http://127.0.0.1;

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000

#location ~ \.php$ {

# root html;

# fastcgi_pass 127.0.0.1:9000;

# fastcgi_index index.php;

# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;

# include fastcgi_params;

# deny access to .htaccess files, if Apache‘s document root

# concurs with nginx‘s one

#location ~ /\.ht {

# deny all;

}

# another virtual host using mix of IP-, name-, and port-based configuration

#server {

# listen 8000;

# listen somename:8080;

# server_name somename alias another.alias;

# root html;

# location / {

# }

# HTTPS server

#server {

# listen 443;

# server_name localhost;

# root html;

# ssl on;

# ssl_certificate cert.pem;

# ssl_certificate_key cert.key;

# ssl_session_timeout 5m;

# ssl_protocols SSLv2 SSLv3 TLSv1;

# ssl_ciphers HIGH:!aNULL:!MD5;

# ssl_prefer_server_ciphers on;

# location / {

# }

}

测试

启动服务

memcached

[root@Memcached1 ~]# service memcached start

Starting memcached: [ OK ]

[root@Memcachd2 ~]# service memcached start

Starting memcached: [ OK ]

Tomcat

[root@TomcatA conf]# service tomcat start

[root@TomcatB conf]# service tomcat start

nginx

[root@zrd0 nginx]# service nginx start

轮询测试

关闭Memcached2，故障转移是否成功

[root@Memcachd2 ~]# service memcached stop

Stopping memcached: [ OK ]

故障转移到Memcached1成功

配置文件

TomcatA B

nginx

本文出自 “To live is to die” 博客，请务必保留此出处http://7431686.blog.51cto.com/7421686/1708380

Centos 6.7 Tomcat Session集群

标签：服务器客户端信息影响结构图

原文地址：http://7431686.blog.51cto.com/7421686/1708380

踩

(0)

评论一句话评论（0）

分享档案

更多>

2021年07月29日 (22)
2021年07月28日 (40)
2021年07月27日 (32)
2021年07月26日 (79)
2021年07月23日 (29)
2021年07月22日 (30)
2021年07月21日 (42)
2021年07月20日 (16)
2021年07月19日 (90)
2021年07月16日 (35)

周排行