nginx-gridfs 的安装配置和使用

(一)安装nginx前的准备

           安装nginx需要安装openssl和pcre,具体安装步骤请参考nginx安装的相关博文

(二)nginx和nginx-gridfs 联合编译安装

        nginx-gridfs 源码下载(包含Mongo-C-Driver可用的下载链接):地址 http://files.cnblogs.com/de0319gh/nginx-gridfs.zip

        nginx和nginx-gridfs 联合编译安装三个步骤:

        (1)./configure --prefix=/usr/local/nginx --with-openssl=/usr/include/openssl --with-http_stub_status_module --add-module=/home/cdh/Downloads/mdirolf-nginx-gridfs

        (2)make        (3)make install

(三)nginx-gridfs 配置

           配置的语法说明:

           gridfs db_name [root_collection] [field] [type] [user] [pass];

           mongo mongodb url;

           [root_collection]: 选择collection,如root_collection=blog, mongod就会去找blog.files与blog.chunks两个块,默认是fs

           [field]:查询字段,保证mongdb里有这个字段名,支持_id, filename, 可省略, 默认是_id

           [type]:解释field的数据类型,支持objectid, int, string, 可省略, 默认是int

           [user]:用户名, 可省略

           [pass]:密码, 可省略

           配置示例:

           (1)指定db为my_app,其他均为默认,默认服务器为本地

location /gridfs/ { gridfs my_app; }

           (2)

location /gridfs/ {
    gridfs my_app field=filename type=string;
    mongo 127.0.0.1:27017;
}

           (3)用于副本集

location /gridfs/ {
    gridfs my_app field=filename type=string;
    mongo "foo"
          10.7.2.27:27017
          10.7.2.28:27017;
}

            (4)完整配置

location /gridfs/ {
    gridfs my_app
           root_collection=pics
           field=_id
           type=int
           user=foo
           pass=bar;
    mongo 127.0.0.1:27017;
}

 (四)注意点

         (1)在测试配置时要记住不要将nginx的文件过期缓存时间配置开启了,最好是在配置好服务器以后再做这个工作,否则很容易造成配置错误的假象。

         (2)要保证系统启动过程中,MongoDB比nginx先启动,否则nginx-gridfs初始化的时候不能正确链接MOngoDB数据库。

                了解CentOS守护进程启动顺序的可以参考 http://wenku.baidu.com/view/f13befcfa1c7aa00b52acb40.html

                查看启动顺序 ls /etc/rc3.d


                以上内容都时链接到/etc/init.d/目录里的相应守护进程启动脚本,S55nginx 意思时nginx的守护进程启动顺序为55,S85mongod 意思时mongod的启动顺序为85,问题就在mongod比nginx晚启动。
                修改启动顺序,将mongod的启动顺序值改为比nginx小的数:
                mv /etc/rc3.d/S85mongod /etc/rc3.d/S54mongod
                mv /etc/rc5/d/S85mongod /etc/rc5.d/S54mongod
                ok,现在reboot重启解决问题。

    (五)nginx-gridfs错误解决 

         问题描述:

         nginx -V检查毫无问题,但是访问所有gridfs内容均报503 Service Temporarily Unavailable,看nginx日志:Mongo connection dropped, could not reconnect。

        

        解决方案:重新clone gridfs,然后不要git submodule init; git submodule update; 而是:

         git clone https://github.com/eagleas/mongo-c-driver.git

        换了一个别人的mongo-c-driver,重新编译安装nginx即可。

        文章出处:https://github.com/mdirolf/nginx-gridfs/issues/52

       引用:

             To fix the isseu you need the latest master branch of the C driver (the GridFS module uses another branch, which seems to be faulty).

     After cloning this repo, do not do 'git submodule init && git subodule update', but instead:
     git clone https://github.com/eagleas/mongo-c-driver.git

     Then compile nginx as usual.

            

             There are one problem is that you must delete the -Werror option of gcc in [nginx-source/objs/MakeFile].
      If you don't do that, the warning will be treated as errors when you do make.

      the log of make below:

             cc1: warnings being treated as errors
             /home/Administrator/upload/nginx-gridfs//mongo-c-driver/src/numbers.c
             gcc -c -pipe -O -W -Wall -Wpointer-arith -Wno-unused-parameter -Wunused-function -Wunused-variable -Wunused-value -Werror -g --std=c99 -Isrc -I src/core -I src/event -I src/event/modules -I src/os/unix -I objs    -o objs/ngx_modules.o

     关于nginx的卸载

            nginx的卸载要看你是怎么装的nginx。RPM装的 用rpm -e卸载
      yum装的用 yum remove卸载 ,源码装的直接删文件就OK.

 

     另外一篇比较好的介绍mongo+nginx-gridfs安装的地址 http://blog.sina.com.cn/s/blog_40e8378d0100oxuy.html

  

原文地址:https://www.cnblogs.com/de0319gh/p/3777099.html