Does Akka directive "fileUpload" copies the entire input entity file into memory? Is there a way to do multipart upload of large file as 1 GB without consuming 1 GB of memory?
My below code to upload 300MB is consuming 300MB of memory. Is this expected behavior with "fileUpload" directive? curl -k -i -X PUT --header --form "csv=@myfile300MB.txt" https://abc/uploadContent val uploadFile = File.createTempFile("uploadFile", ".txt") extractRequestContext { ctx => implicit val materializer = ctx.materializer implicit val ec = ctx.executionContext fileUpload("csv") { case (metadata, byteSource) => val sumF = byteSource.runFold(ByteString.empty) { case (acc, i) => acc ++ i }.map(s => s.utf8String) onSuccess(sumF) { sum => Files.write(Paths.get(uploadFile.getAbsolutePath), sum.toString.getBytes) logger.info(StatusCodes.OK + "Successfully completed fileUpload ") complete(s"Successfully completed fileUpload") }} } Thanks *johanandren <https://github.com/johanandren>*for your below response: Hi @mahadev-khapali <https://github.com/mahadev-khapali>, we use the issue tracker for bugs and feature requests, please use the mailing list https://groups.google.com/forum/#!forum/akka-user or the gitter chat https://gitter.im/akka/akka for questions like this, thanks! (And yes, if you use fold like that you are collecting the entire upload into memory, you should instead stream it directly to a file sink if you want to avoid that) Can you somebody suggest how do I directly stream to a file sink so that I dont upload into memroy? -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
