> Hi, i've set a proxy cache for my app ( app is allso served by nginx ).
> My problem is that i would like to have my app control the cache a
> little bit so i have hooks that delete files whith keys matching certain
> paths when some events in the app take place. This also works ok but the
> problem is that during stress testing if i remove a file from the nginx
> cache i get a lot of php-fpm processes stampeeding to generate that file
> in the cache.
>
> I would like to mention that i am using proxy_cache_use_stale updating
> in order to prevent stampeeding when nginx needs to rebuild cached pages
> that have expired naturally but that won't help when i remove them from
> the cache myself.
>
> Question is ... how can i make certain pages expire when the application
> decides they need to be refreshed ? or ... how can i safely delete them
> and not have a php riot ?

Either use this: https://github.com/FRiCKLE/ngx_cache_purge

Or just delete the file. This could be handy in that case:

https://github.com/perusio/nginx-cache-purge


--appa

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