Hi, I'm using nginx as a reverse proxy with caching on a ramdisk /var/cache/nginx is a tmpfs of the size 1800m. And this is my proxy_cache_path line in nginx:
proxy_cache_path /var/cache/nginx levels=1:2 use_temp_path=off keys_zone=default:50m inactive=120m max_size=1500m; This is the error message when the ramdisk is filled. [crit] 1460#0: *14844194 pwritev() "/var/cache/nginx/temp/3/12/0001578123" failed (28: No space left on device) while reading upstream, client: XXX, server: , request: "GET /xxx.jpg HTTP/1.1", upstream: " http://127.0.0.1:81/xxx.jpg";, host: "xxx.com", referrer: "http://xxx.com/"; I see two problems here. 1. Why didn't max_size work and clear the space in the tmpfs mount when it got past 1500m? 2. Why doesn't nginx just bypass the cache and serve from upstrean when the mount is full instead of hard failing? And what solutions do I have? Do I increase the ramdisk/tmpfs size? Do I decrease the max_size? Should I run a external cronjob that restarts nginx when the ramdisk is more than 1500MB? Or is nginx proxy_cache_path broken and do I need to change to another solution like squid or varnish?
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![http://127.0.0.1:81/xxx.jpg"](http://127.0.0.1:81/xxx.jpg"){kind=link}