Hi! according to the function ngx_http_upstream_cache, I think nginx never load the file to memory, instead, it just set a buf, which file is referenced to this file and output it.
On 7 September 2017 at 16:31:46, [email protected] ([email protected]) wrote: Hi, Currently we are modify some nginx proxy cache functions, and I would like to know how nginx cache work? 1. does nginx cache data in memory or read from disk everytime? for example, first I do `GET /example.jpg`, nginx will cache it and save to disk. next time I do `GET /example.jpg`, does nginx read the file from disk then send to client, or nginx just send the file from memory to client because nginx has cached it in memory ? 2. if nginx save it in memory, what happens if the file is 1GB? does nginx malloc a 1GB memory and save the file? or split the file into many parts, and save it separately using something like array or linked list? Thanks _______________________________________________ nginx-devel mailing list [email protected] http://mailman.nginx.org/mailman/listinfo/nginx-devel
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