Hello! On Mon, Aug 04, 2014 at 07:42:20PM -0400, badtzhou wrote:
> I am thinking about setting up multiple nginx instances share single proxy > cache storage using NAS, NFS or some kind of distributed file system. Cache > key will be the same for all nginx instances. > Will this theory work? What kind of problem will it cause(locking, cached > corruption or missing metadata in the memory)? As soon as a cache is loaded, nginx relies on it's memory data to manage cache (keep it under the specified size, remove inactive items and so on). As a result it won't be happy if you'll try to run multiple nginx instances working with the same cache directory. It can tolerate multiple instances working with the same cache for a short period of time (e.g., during binary upgrade). But running nginx this way intentionally is a bad idea. Besides, using NFS (as well as other NASes) for nginx cache is a bad idea due to blocking file operations. -- Maxim Dounin http://nginx.org/ _______________________________________________ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
