For me 40-50 GB cache is ok, because I have multiple files like 2-5GB. Problem in my mind is this that I have settings:
proxy_cache_path /ephemeral/nginx/cache levels=1:2 keys_zone=proxy-cache:4000m max_size=40g inactive=1d;
but I have over 40GB on disc and files older than 1 day inactive.
Can you tell me what happend with downloaded part of files when I have:
[error] 16082#0: *1264804 upstream prematurely closed connection while reading upstream
[crit] 16082#0: *1264770 pwritev() <path> has written only 49152 of 151552 while reading upstream
This part of file is still on disc and don't deleted after error?
On most of my proxy rate is 90% HIT to 9% MISS and 1% ERROR. But couple of them have stats like 10% HIT, 60% MISS, 30% ERROR.
Sometimes I have problem with MISS on existing file. In logs I see 1 MISS, after that 10-20 HIT and after that only multiple MISS on this same file.
