How to Clear the Cache of Nginx

How to clear the cache of nginx?

I had the exact same problem - I was running my nginx in Virtualbox. I did not have caching turned on. But looks like sendfile was set to on in nginx.conf and that was causing the problem. @kolbyjack mentioned it above in the comments.

When I turned off sendfile - it worked fine.

This is because:

Sendfile is used to ‘copy data between one file descriptor and another‘ and apparently has some real trouble when run in a virtual machine environment, or at least when run through Virtualbox. Turning this config off in nginx causes the static file to be served via a different method and your changes will be reflected immediately and without question

It is related to this bug: https://www.virtualbox.org/ticket/12597

nginx cache folder is empty

proxy_cache take effect only when nginx configured a reverse proxy directive proxy_pass.

To cache fastcgi contents you could follow this doc, replace proxy_cache with the fastcgi_cache serie directives.

How do you clear the cache for static files on nginx proxy server

You can update your javascript file with adding the latest version with your file name, which is something like this.

<script src="yourfile.js?v12" > </script>

Here is the ?v12 the version of file you can add.

Every time you edit the javascript file, you can update it like ?v13, ?v14, ?v15 so on.

• <script src="yourfile.js?v13" > </script>
• <script src="yourfile.js?v14" > </script>
• <script src="yourfile.js?v13" > </script>

That's how your javascript is not cached in browser.

Nginx server (not showing changes) - Delete cache?

First, css is something that the client caches, not the server. You should clear your browser's cache to see your css changes. Furthermore, browser caching is a common problem in css and javascript development. Luckily, you can take advantage of elixir, which ships with laravel 5.1, to prevent browsers caching your assets.

Visit the docs for more info on laravel elixir.

http://laravel.com/docs/5.1/elixir#versioning-and-cache-busting

Second, laravel gives us a convenient command to clear your server's cache:

php artisan cache:clear

UPDATE:

server {
    listen 80;
    server_name example.com;
    root "/usr/share/nginx/app/public";

    index index.html index.htm index.php;

    charset utf-8;

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    location = /favicon.ico { access_log off; log_not_found off; }
    location = /robots.txt  { access_log off; log_not_found off; }

    access_log off;
    error_log  /var/log/nginx/app-error.log error;

    client_max_body_size 100m;

    include hhvm.conf;

    location ~ /\.ht {
        deny all;
    }
}

server {
    listen 80;
    server_name beta.example.com;
    root "/usr/share/nginx/beta/public";

    index index.html index.htm index.php;

    charset utf-8;

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    location = /favicon.ico { access_log off; log_not_found off; }
    location = /robots.txt  { access_log off; log_not_found off; }

    access_log off;
    error_log  /var/log/nginx/app-error.log error;

    client_max_body_size 100m;

    include hhvm.conf;

    location ~ /\.ht {
        deny all;
    }
}

Disable nginx cache for JavaScript files

I have the following nginx virtual host (static content) for local development work to disable all browser caching:

server {
    listen 8080;
    server_name localhost;

    location / {
        root /your/site/public;
        index index.html;

        # kill cache
        add_header Last-Modified $date_gmt;
        add_header Cache-Control 'no-store, no-cache';
        if_modified_since off;
        expires off;
        etag off;
    }
}

No cache headers sent:

$ curl -I http://localhost:8080
HTTP/1.1 200 OK
Server: nginx/1.12.1
Date: Mon, 24 Jul 2017 16:19:30 GMT
Content-Type: text/html
Content-Length: 2076
Connection: keep-alive
Last-Modified: Monday, 24-Jul-2017 16:19:30 GMT
Cache-Control: no-store
Accept-Ranges: bytes

Last-Modified is always current time.

Note: nginx's $date_gmt format is not per the HTTP spec (see changing the format).

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