Signed S3 URLs do expire, but you can set the expiry date far in the future, or you could generate the URLs on the fly and add them to a temporary redirect.
My understanding is that you can also upload to S3 using temporary URLs, but I haven't tried it. In any case, I'd advise implementing it with blocking I/O first, ensuring you have plenty of threads, then run some benchmarks to see how your application performs. - James On 23 April 2014 05:25, Andrew Chambers <andrewchambe...@gmail.com> wrote: > I need access control for the static files. The alternative is signed s3 > urls which expire. Uploads still require streaming through ring however as > i cant generate signed upload urls with the parameters that I need. > > > On Wednesday, April 23, 2014 3:27:09 PM UTC+12, James Reeves wrote: > >> Java input streams are blocking, rather than asynchronous, so yes it >> would use a thread per stream. >> >> In theory an asynchronous solution would be more efficient, and there are >> adapters, like http-kit, that support this optimisation. >> >> However, in practice, Java can handle many threads in a single process, >> so it's unlikely you'll run into difficulties until you have to support >> 1000s of concurrent downloads. It's often a good idea to avoid premature >> optimisations, particularly if you lack concrete benchmarks. >> >> It also depends a lot on how you're generating the downloads. If you're >> generating the files dynamically, you may find that your bottleneck is >> CPU-bound, rather than I/O-bound; in which case, there would be little >> benefit to going async. If you're just serving static files, then it might >> be useful hosting your files on a service like S3, and redirecting your >> users instead. >> >> - James >> >> >> On 23 April 2014 04:03, Andrew Chambers <andrewc...@gmail.com> wrote: >> >>> When you set the body of a ring response to a java input stream and >>> return it, is this still a thread per stream? or does it use some sort of >>> java event loop for efficiency? >>> I'm worried that a traffic download/upload server in ring wouldn't >>> handle many concurrent large file uploads and downloads as efficiently as >>> something like google go or nodejs would. >>> I would like to use ring because I want Datomic to manage the access >>> permissions. >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To post to this group, send email to clo...@googlegroups.com >>> >>> Note that posts from new members are moderated - please be patient with >>> your first post. >>> To unsubscribe from this group, send email to >>> clojure+u...@googlegroups.com >>> >>> For more options, visit this group at >>> http://groups.google.com/group/clojure?hl=en >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to clojure+u...@googlegroups.com. >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
