Error - Using Nginx Proxy Cache

naidile.pn naidilepn at gmail.com
Mon May 18 17:26:20 UTC 2020


Hi,

Can you please help here - basically after the cache expires, the upstream
call is failing as not accessible and we are serving stale data to avoid
failures.

After we reload the nginx- first call to upstream is successful and data is
cached.

Thanks!


On Fri, May 15, 2020, 2:14 PM naidile.pn <naidilepn at gmail.com> wrote:

> Hi All,
>
> We are using proxy cache to cache the response from upstream for a day.
> But, when the cache expires, API stops responding with 500.
>
> Getting the error: open() "proxycachepath" failed (13: Permission denied)
>
> On reloading the nginx, server is able to connect to upstream and cache
> response for the first time and works for next one day.
>
> Below is the nginx rule :
>
> location /somelocation {
>                 add_header X-Proxy-Cache $upstream_cache_status;
>                 proxy_cache my_zone;
>                 proxy_ignore_headers X-Accel-Expires Expires Cache-Control;
>                 proxy_cache_valid 200 1440m;
>                 proxy_cache_use_stale error timeout http_500 http_502
> http_503 http_504;
>                 proxy_pass  someupstream;
>                 proxy_pass_request_headers      on;
>                 proxy_connect_timeout   120;
>                 proxy_send_timeout      120;
>                 proxy_read_timeout      120;
>                 }
>
> Can anyone please help here.
>
> Thanks!
>
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