关于nginx的无缝升级

先 ./configure 一下，按原来的路径配置，自己需要的包打上，基本上没啥，基本功能nginx都自带了。

然后make，但不要install

编译完，在objs目录下有一个nginx执行文件，就是它了。

备份下原来老的nginx文件

mv /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.old

在把新objs下的nginx cp到sbin下。

nginx -t 测试下，显示通过。

//让nginx把nginx.pid改成nginx.pid.oldbin 跟着启动新的nginx
# kill -USR2 `cat /usr/local/nginx/nginx.pid`

//退出旧的nignx
# kill -QUIT `cat /usr/local/nginx/nginx.pid.oldbin`

升级完成！

参考：

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注：当升级时想要添加--with-http_perl_module perl支持时，光做上面的操作是不行的，因为添加了上面的编译选项后nginx还需要添加一些文件到perl中。

下面是make install做的工作，可见安装了一些perl所需的文件，所以，解决这个问题的办法就是在另外一个目录安装一个一样编译选项的nginx，这样就会将需要的perl文件安装好了。（因为红色部分所做的操作，所以使用没有手动拷贝perl的文件）

[root@srv3 nginx-0.7.65]# make install
make -f objs/Makefile install
make[1]: Entering directory `/opt/nginx-0.7.65'
cd objs/src/http/modules/perl && make install
make[2]: Entering directory `/opt/nginx-0.7.65/objs/src/http/modules/perl'
Installing /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/auto/nginx/nginx.bs
Installing /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/auto/nginx/nginx.so
Files found in blib/arch: installing files in blib/lib into architecture dependent library tree
Installing /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/nginx.pm
Installing /usr/share/man/man3/nginx.3pm
Writing /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/auto/nginx/.packlist
Appending installation info to /usr/lib/perl5/5.8.8/i386-linux-thread-multi/perllocal.pod
make[2]: Leaving directory `/opt/nginx-0.7.65/objs/src/http/modules/perl'
test -d '/usr/local/nginx111' || mkdir -p '/usr/local/nginx111'
test -d '/usr/local/nginx111/sbin' || mkdir -p '/usr/local/nginx111/sbin'
test ! -f '/usr/local/nginx111/sbin/nginx' || mv '/usr/local/nginx111/sbin/nginx' '/usr/local/nginx111/sbin/nginx.old'
cp objs/nginx '/usr/local/nginx111/sbin/nginx'
test -d '/usr/local/nginx111/conf' || mkdir -p '/usr/local/nginx111/conf'
cp conf/koi-win '/usr/local/nginx111/conf'
cp conf/koi-utf '/usr/local/nginx111/conf'
cp conf/win-utf '/usr/local/nginx111/conf'
test -f '/usr/local/nginx111/conf/mime.types' || cp conf/mime.types '/usr/local/nginx111/conf'
cp conf/mime.types '/usr/local/nginx111/conf/mime.types.default'
test -f '/usr/local/nginx111/conf/fastcgi_params' || cp conf/fastcgi_params '/usr/local/nginx111/conf'
cp conf/fastcgi_params '/usr/local/nginx111/conf/fastcgi_params.default'
test -f '/usr/local/nginx111/conf/fastcgi.conf' || cp conf/fastcgi.conf '/usr/local/nginx111/conf'
cp conf/fastcgi.conf '/usr/local/nginx111/conf/fastcgi.conf.default'
test -f '/usr/local/nginx111/conf/nginx.conf' || cp conf/nginx.conf '/usr/local/nginx111/conf/nginx.conf'
cp conf/nginx.conf '/usr/local/nginx111/conf/nginx.conf.default'
test -d '/usr/local/nginx111/logs' || mkdir -p '/usr/local/nginx111/logs'
test -d '/usr/local/nginx111/logs' || mkdir -p '/usr/local/nginx111/logs'
test -d '/usr/local/nginx111/html' || cp -r html '/usr/local/nginx111'
test -d '/usr/local/nginx111/logs' || mkdir -p '/usr/local/nginx111/logs'
make[1]: Leaving directory `/opt/nginx-0.7.65'