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This article introduces how to build a high-performance load balancing cluster in Nginx+Tomcat. The content is very detailed. Interested friends can use it for reference. I hope it will be helpful to you.

The editor is going to build two sets of Tomcat and one set of nginx services on the same server.

II. Objectives

Tomcat clusters that achieve high performance load balancing:

1. Install nginx

Components required to compile the source code

Lib libraries required by 1.zlib ngix

2.pcre nginx rewrite rewriting is used to support regular expressions

3.openssl supports the use of sites with security protocols

1) Media download

Download address of the library:

Source code download address zlib

Http://www.zlib.net/

PCRE-support for regular expressions

Http://www.pcre.org/

Opensll installation (optional), sites that support security protocols

Http://www.openssl.org/

Nginx download

Http://nginx.org/en/download.html

2) upload media to linux platform and decompress

3) compile and install

4) modify the configuration file

1. Compile zlib

Tar xvf zlib-1.2.8.tar.gz

. / configure-static-prefix=/usr/local/libs/zlib

Make

Make install

two。 Compile openssl

Tar xvf openssl-1.0.le.tar.gz

. / config-- prefix=/usr/local/openssl

Make

Make install

3. Compile pcre

Tar xvf pcre-8.33.tar.gz

. / configure-- prefix=/usr/local/pcre

Make

Make install

4. Compile ngnix

Useradd nginx

Tar xvf nginx-1.5.4.tar.gz

/ configure-- user=nginx-- group=nginx-- prefix=/usr/local/nginx-- with-debug-- with-openssl=/soft/openssl-1.0.le-- with-zlib=/soft/zlib-1.2.8-- with-pcre=/soft/pcre-8.33-- with-http_stub_status_module-- with-http_gzip_static_module-- with-http_ssl_module

Make

Make install

Remarks:-- with-openssl-- with-zlib-- with-pcre these three paths are their corresponding source paths.

Start the nginx service

Cd / usr/local/nginx

. / nginx

Check whether the nginx process is working properly

Ps-ef | grep nginx

2. Install tomcat

Download tomcat media on the tomcat official website

Upload the Linux server to extract and modify the configuration file

[root@mysql tomcat] # pwd

/ usr/local/tomcat

[root@mysql tomcat1] # pwd

/ usr/local/tomcat1

Modify tomcat configuration file

First set of tomcat

The second set of tomcat modifications:

Start two sets of tomcat

Modify nginx configuration file

The configuration is as follows (only a simple configuration has been made here, and the actual production environment can be configured in more detail):

Vi tomcat_fzjh.conf

[html] view plain copy

The number of worker_processes # processes is generally the same as the number of cpu cores of the computer.

Events {

Worker_connections 1024 + # maximum number of connections per process (maximum number of connections = number of connections * number of processes)

}

Http {

Include mime.types; # File extension and File Type Mapping Table

Default_type application/octet-stream;# default file type

Sendfile on;# enables efficient file transfer mode. The sendfile instruction specifies whether nginx calls the sendfile function to output files. For common applications, set it to on. If it is used for downloading and other application disk IO heavy-load applications, it can be set to off to balance the processing speed of disk and network Ibano and reduce the load of the system. Note: if the picture does not display properly, change this to off.

Keepalive_timeout 65; # persistent connection timeout (in seconds)

Gzip on;# enables Gizp compression

# Cluster of servers

Upstream netitcast.com {# Server Cluster name

Server 127.0.0.1 weight 18080 server configuration weight means weight, the greater the weight, the greater the probability of allocation.

Server 127.0.0.1:28080 weight=2

}

# configuration of the current Nginx

Server {

Listen 80th # listens to port 80, which can be changed to other ports

Domain name of the current service of server_name localhost;#

Location / {

Proxy_pass http://netitcast.com;

Proxy_redirect default

}

Error_page 500 502 503 504 / 50x.html

Location = / 50x.html {

Root html

}

}

}

Start the nginx service

/ usr/local/nginx/sbin/nginx-c / usr/local/nginx/config/tomcat_fzjh.conf

This is the end of how to build a high-performance load balancer cluster in Nginx+Tomcat. I hope the above content can be of some help and learn more. If you think the article is good, you can share it for more people to see.

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