Is chunked uploading supported?

[robj]

I have multi-gigabyte files that always fail uploading.

Is it possible to use S3 CORS + chunked uploads as per

https://github.com/blueimp/jQuery-File-Upload/wiki/Chunked-file-uploads

?

I have tried adding the following options:

$(this).fileupload({
  maxChunkSize: 1000000, //  1 MB for testing
  maxRetries: 100,
  retryTimeout: 500,

this results in a series of successive 1MB POSTs with appropriate headers

eg.. Content-Range changes

second to last chunk:

Content-Description:
Content-Disposition:attachment; filename="VTS_01_1.VOB"
Content-Length:1001090
Content-Range:bytes 3000000-3999999/4014080

last chunk:

Content-Disposition:attachment; filename="VTS_01_1.VOB"
Content-Length:15170
Content-Range:bytes 4000000-4014079/4014080

However after the upload is complete on S3 the file is only the size of the final chunk, it is overwriting rather than appending the chunks.

Any suggestions here?

[ncri]

First of all I would switch to an uploader using CORS, if you are still using this project. It simplifies the code a lot.
This gem is easy to use: github.com/waynehoover/s3_direct_upload

About the chunked upload: I have never tried it, so no idea what is going wrong. Might be a good idea to ask at Stackoverflow about it.