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Home Backend Development PHP Tutorial 请教nginx中fastcgi缓存过期时间,以及如何清理缓存的问题

请教nginx中fastcgi缓存过期时间,以及如何清理缓存的问题

Jun 06, 2016 pm 08:45 PM
nginx php Page cache

首先是问题1:nginx缓存过期时间
我在conf中设置了300秒过期,但是我更新了博客日志页面300秒后,刷新页面并没有更新

如:
小伙伴们惊呆了!10行 JavaScript 实现文本编辑器
http://levi.cg.am/archives/3066

请教nginx中fastcgi缓存过期时间,以及如何清理缓存的问题
请问这是为什么?

问题2:如何清理缓存
我发现nginx都会将缓存存放在指定目录,且以缓存文件名最后四位来设置目录,例如:
请教nginx中fastcgi缓存过期时间,以及如何清理缓存的问题

我想缓存的名称应该是MD5,如果将这个缓存文件删除了,那么就能成功删除指定页面的缓存。
但是这个MD5好像并不是根据URL来判断的,还是上面那个链接,在PHP中输入:

<code>echo md5('http://levi.cg.am/archives/3066');
// output 4099cbf6f33f521b84cdb94d707f5758
</code>
Copy after login
Copy after login

好像并没有4099cbf6f33f521b84cdb94d707f5758 这个文件
请教nginx中fastcgi缓存过期时间,以及如何清理缓存的问题

我看了conf中我设置的fastcgi缓存的key

<code>fastcgi_cache_key $request_method://$host$request_uri;
</code>
Copy after login
Copy after login

请教nginx中fastcgi缓存过期时间,以及如何清理缓存的问题

应该就是域名才对,难道说nginx中的md5和php中的md5不一致?请问如何得知指定页面的缓存文件呢?

回复内容:

首先是问题1:nginx缓存过期时间
我在conf中设置了300秒过期,但是我更新了博客日志页面300秒后,刷新页面并没有更新

如:
小伙伴们惊呆了!10行 JavaScript 实现文本编辑器
http://levi.cg.am/archives/3066

请教nginx中fastcgi缓存过期时间,以及如何清理缓存的问题
请问这是为什么?

问题2:如何清理缓存
我发现nginx都会将缓存存放在指定目录,且以缓存文件名最后四位来设置目录,例如:
请教nginx中fastcgi缓存过期时间,以及如何清理缓存的问题

我想缓存的名称应该是MD5,如果将这个缓存文件删除了,那么就能成功删除指定页面的缓存。
但是这个MD5好像并不是根据URL来判断的,还是上面那个链接,在PHP中输入:

<code>echo md5('http://levi.cg.am/archives/3066');
// output 4099cbf6f33f521b84cdb94d707f5758
</code>
Copy after login
Copy after login

好像并没有4099cbf6f33f521b84cdb94d707f5758 这个文件
请教nginx中fastcgi缓存过期时间,以及如何清理缓存的问题

我看了conf中我设置的fastcgi缓存的key

<code>fastcgi_cache_key $request_method://$host$request_uri;
</code>
Copy after login
Copy after login

请教nginx中fastcgi缓存过期时间,以及如何清理缓存的问题

应该就是域名才对,难道说nginx中的md5和php中的md5不一致?请问如何得知指定页面的缓存文件呢?

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