标签： nginx

服务器近一年没有更新Nginx版本了，为了提高性能和稳定，采用了最新的Nginx版本。可以到http://nginx.org/en/download.html 进行下载。升级仅花了几分钟时间就搞定了。
注：以下代码是真实环境直接配置复制进来，可以根据代码从上至下进行操作配置。

[root@kiccleaf leaf]# wget http://nginx.org/download/nginx-1.3.0.tar.gz
[root@kiccleaf leaf]# tar -zxvf nginx-1.3.0.tar.gz
[root@kiccleaf leaf]# cd nginx-1.3.0
#如果需要服务器个性化名称可以修改
[root@kiccleaf nginx-1.3.0]# vi src/core/nginx.h
/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGINX_H_INCLUDED_
#define _NGINX_H_INCLUDED_


#define nginx_version      1003000
#define NGINX_VERSION      "1.3.0"  #可修改成自己需要的版本
#define NGINX_VER          "Nginx/" NGINX_VERSION #可修改成自己需要服务的名称

#define NGINX_VAR          "NGINX"  #可修改成自己需要服务的名称
#define NGX_OLDPID_EXT     ".oldbin"


#endif /* _NGINX_H_INCLUDED_ */

#进行配置操作，根据自己的实际配置来，以下是我简单的配置

[root@kiccleaf nginx-1.3.0]# ./configure --user=www --group=www --add-module=../ngx_cache_purge-1.3 --prefix=/usr/local/nginx --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module
checking for OS
 + Linux 2.6.18-274.12.1.el5 x86_64
checking for C compiler ... found
 + using GNU C compiler
 + gcc version: 4.1.2 20080704 (Red Hat 4.1.2-51)
…………………………编译代码省略………………
  nginx path prefix: "/usr/local/nginx"
  nginx binary file: "/usr/local/nginx/sbin/nginx"
  nginx configuration prefix: "/usr/local/nginx/conf"
  nginx configuration file: "/usr/local/nginx/conf/nginx.conf"
  nginx pid file: "/usr/local/nginx/logs/nginx.pid"
  nginx error log file: "/usr/local/nginx/logs/error.log"
  nginx http access log file: "/usr/local/nginx/logs/access.log"
  nginx http client request body temporary files: "client_body_temp"
  nginx http proxy temporary files: "proxy_temp"
  nginx http fastcgi temporary files: "fastcgi_temp"
  nginx http uwsgi temporary files: "uwsgi_temp"
  nginx http scgi temporary files: "scgi_temp"
[root@kiccleaf nginx-1.3.0]# make  #看清咯，只make，而不是make install，这里升级不需要install操作
make -f objs/Makefile
make[1]: Entering directory `/home/leaf/nginx-1.3.0'
…………………………编译代码省略………………
make[1]: Leaving directory `/home/leaf/nginx-1.3.0'
make -f objs/Makefile manpage
make[1]: Entering directory `/home/leaf/nginx-1.3.0'
sed -e "s|%%PREFIX%%|/usr/local/nginx|" \
		-e "s|%%PID_PATH%%|/usr/local/nginx/logs/nginx.pid|" \
		-e "s|%%CONF_PATH%%|/usr/local/nginx/conf/nginx.conf|" \
		-e "s|%%ERROR_LOG_PATH%%|/usr/local/nginx/logs/error.log|" \
		< man/nginx.8 > objs/nginx.8
make[1]: Leaving directory `/home/leaf/nginx-1.3.0'

检查配置是否正确，这里出现了警告，因为从低版本升级至高版本产生了配置的问题

[root@kiccleaf nginx-1.3.0]# ./objs/nginx -t
nginx: [warn] the "log_format" directive may be used only on "http" level in /usr/local/nginx/conf/conf.d/www.kiccleaf.com.conf:22
nginx: [warn] the "log_format" directive may be used only on "http" level in /usr/local/nginx/conf/conf.d/www.qimutian.com.conf:22
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
#升级后出现配置文件conf有错误，如果有其的虚拟主机开启了日志，也按要求移出server段放在server段的前面即可。
[root@kiccleaf nginx-1.3.0]# vi /usr/local/nginx/conf/conf.d/www.kiccleaf.com.conf
#把server里面的log_format代码拿到上面来，保存退出
    log_format  www_kiccleaf_com  '$remote_addr - $remote_user [$time_local] "$request" '
             '$status $body_bytes_sent "$http_referer" '
              '"$http_user_agent" $http_x_forwarded_for';
server
{
    listen       80;
    server_name  www.kiccleaf.com;
    index index.html index.htm index.php;
    root  /data/kiccleaf;
    #limit_conn   crawler  20;    
                            
    location ~ .*\.(php|php5)?$
    {      
      fastcgi_pass  127.0.0.1:9000;
      fastcgi_index index.php;
      include fcgi.conf;
    }

#以下代码的问题，升级后需要把以下代码拿到server上面去。这里先注释掉
#    log_format  www_kiccleaf_com  '$remote_addr - $remote_user [$time_local] "$request" '
#             '$status $body_bytes_sent "$http_referer" '
#              '"$http_user_agent" $http_x_forwarded_for';
    access_log  /data/logs/www_kiccleaf_com.log www_kiccleaf_com;

}
[root@kiccleaf nginx-1.3.0]# /usr/local/nginx/sbin/nginx -t  #再检查，没有warn警告信息了
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

操作升级，出错误不管它

[root@kiccleaf nginx-1.3.0]# make upgrade #出现错误，就先不管它
/usr/local/nginx/sbin/nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
kill -USR2 `cat /usr/local/nginx/logs/nginx.pid`
cat: /usr/local/nginx/logs/nginx.pid: No such file or directory
kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec ... or kill -l [sigspec]
make: *** [upgrade] Error 1

备份老的Nginx程序，复制新的过去

[root@kiccleaf nginx-1.3.0]# mv /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.old
mv: overwrite `/usr/local/nginx/sbin/nginx.old'? y
[root@kiccleaf nginx-1.3.0]# cp objs/nginx /usr/local/nginx/sbin/nginx
[root@kiccleaf nginx-1.3.0]# /usr/local/nginx/sbin/nginx -t #查看复制过去配置是否正确
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
[root@kiccleaf nginx-1.3.0]# /usr/local/nginx/sbin/nginx -v  #再查看一下新版本，老的是1.0.4版本
nginx version: Nginx/1.3.0  #已经是新版本

无缝升级到新版本

[root@kiccleaf nginx-1.3.0]# kill -USR2 `cat /usr/local/nginx/nginx.pid` #
[root@kiccleaf nginx-1.3.0]# ps aux| grep nginx #查看一下进程
root      2169  0.0  0.0 248708  1788 ?        Ss    2011   0:00 nginx: master process /usr/local/nginx/sbin/nginx  #老的进程都是2011年开启的，嘿嘿
www       6891  0.0  0.3 274308 27796 ?        S    Apr20   0:13 nginx: worker process               
www       6892  0.0  0.3 274308 27616 ?        S    Apr20   0:13 nginx: worker process               
www       6893  0.0  0.3 274308 27596 ?        S    Apr20   0:13 nginx: worker process               
www       6894  0.0  0.3 274308 27612 ?        S    Apr20   0:13 nginx: worker process               
www       6895  0.0  0.3 274308 27608 ?        S    Apr20   0:15 nginx: worker process               
www       6896  0.0  0.3 274308 27796 ?        S    Apr20   0:15 nginx: worker process               
www       6897  0.0  0.3 274308 27700 ?        S    Apr20   0:15 nginx: worker process               
www       6898  0.0  0.3 274308 27600 ?        S    Apr20   0:12 nginx: worker process               
www       6899  0.0  0.3 274308 27592 ?        S    Apr20   0:13 nginx: worker process               
www       6900  0.0  0.3 274308 27620 ?        S    Apr20   0:13 nginx: worker process               
www       6901  0.0  0.3 274308 27616 ?        S    Apr20   0:14 nginx: worker process               
www       6902  0.0  0.3 274308 27652 ?        S    Apr20   0:11 nginx: worker process               
www       6903  0.0  0.3 274308 27856 ?        S    Apr20   0:13 nginx: worker process               
www       6904  0.0  0.3 274308 27608 ?        S    Apr20   0:15 nginx: worker process               
www       6905  0.0  0.3 274308 27644 ?        S    Apr20   0:12 nginx: worker process               
www       6906  0.0  0.3 274308 27612 ?        S    Apr20   0:16 nginx: worker process               
www       6907  0.0  0.0 248708  1500 ?        S    Apr20   0:00 nginx: cache manager process        
root     30293  0.0  0.0 248008  3764 ?        S    22:17   0:00 nginx: master process /usr/local/nginx/sbin/nginx
www      30294  0.0  0.3 273968 27524 ?        S    22:17   0:00 nginx: worker process               
www      30295  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30296  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30297  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30298  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30299  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30300  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30301  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30302  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30303  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30304  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30305  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30306  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30307  0.0  0.3 273936 27392 ?        S    22:17   0:00 nginx: worker process               
www      30308  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30309  0.0  0.3 273608 26784 ?        S    22:17   0:00 nginx: worker process               
www      30310  0.0  0.0 248188  1396 ?        S    22:17   0:00 nginx: cache manager process        
root     30316  0.0  0.0  61172   800 pts/1    S+   22:36   0:00 grep nginx

原来存放nginx.pid的目录下自动出现了nginx.pid.oldbin。现在新的和旧的一起在提供服务，我们执行一下命令把老的进程给Kill掉就可以了。

[root@kiccleaf nginx-1.3.0]# kill -QUIT `cat /usr/local/nginx/nginx.pid.oldbin` 
[root@kiccleaf nginx-1.3.0]# ps aux| grep nginx #现在查看进程只有新的了
root     30293  0.0  0.0 248720  3924 ?        S    22:17   0:00 nginx: master process /usr/local/nginx/sbin/nginx
www      30332  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30333  0.1  0.3 274320 27552 ?        S    22:43   0:00 nginx: worker process               
www      30334  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30335  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30336  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30337  0.1  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30338  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30339  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30340  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30341  0.1  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30342  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30343  0.1  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30344  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30345  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30346  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30347  0.0  0.3 274320 26944 ?        S    22:43   0:00 nginx: worker process               
www      30348  0.0  0.0 248720  1400 ?        S    22:43   0:00 nginx: cache manager process        
root     30418  0.0  0.0  61172   796 pts/1    S+   22:45   0:00 grep nginx

好了进行访问网站，是不是正常不间断切换至最新的Nginx版本了！