在阿里云上，搭建了个nginx服务器，今天wordpress访问不正常，css没有加载成功，后台媒体库也加载不了。Chrome控制台看到如下错误：ERR_INCOMPLETE_CHUNKED_ENCODING。
看了下nginx/logs/error.log下日志：
- open() “/aliyun/server/nginx/fastcgi_temp/1/02/0000000021” failed (13: Permission denied) while reading upstream, client: x.x.x.x, server: x.x.x.x, request: “GET /blog/wp-admin/load-styles.php?c=1&dir=ltr&load=dashicons,admin-bar,wp-admin,buttons,wp-auth-check&ver=4.1.1 HTTP/1.1″, upstream: “fastcgi://127.0.0.1:9000”, host: “xx.xx.xx.xx”, referrer: “http://x.x.x.x/blog/wp-admin/”
搜索了下，找到这篇文章http://www.tuicool.com/articles/7Bjiyq跟我遇到的问题类似。
发现nginx目录下fastcgi_temp属于nobody用户和用户组。
- drwx—— 12 nobody nobody 4096 Mar 14 18:24 fastcgi_temp
再看php-fpm配置文件：
- #vi /etc/php-fpm.d/www.conf
- ; Unix user/group of processes
- ; Note: The user is mandatory. If the group is not set, the default user’s group
- ; will be used.
- ; RPM: apache Choosed to be able to access some dir as httpd
- ;user = nobody
- user=www
- ; RPM: Keep a group allowed to write in log dir.
- ;group = nobody
- group=www
用户和用户组已经改成了www。将fastcgi_temp及子目录改为www。如下：
- #chown -R www:www fastcgi_temp
- #ls -al
- drwx—— 12 www www 4096 Mar 14 18:24 fastcgi_temp
再次访问wordpress，一切正常！