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https://issues.apache.org/jira/browse/SLING-2707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13559685#comment-13559685
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Alexander Klimetschek commented on SLING-2707:
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Actually, since my proposal is append-only, you only need a request
(POST/PATCH) somewhat indicating that this is appending to the existing binary.
The Range/Content-Range headers aren't fully designed for uploads. Found this
proposal which is quite close:
http://code.google.com/p/gears/wiki/ResumableHttpRequestsProposal
> The reason we are not doing range uploads because sling endpoint won't be
> extensible to support parallel chunk upload.
As noted, I don't see this as a goal at all, so a lot of complexity can be
stripped.
> OPTIONS should tell client whether sling support chunk upload
Not only Sling...
> how request will hit my endpoint if don't specify selector.
I mean the range-upload instead of chunks.
>>POST /content/dam/dam-folder/asset.pdf.chunk.2.html
> [chunk, 2 ] are selector here. correct ?
Yes, considering /content/dam/dam-folder/asset.pdf exists as resource.
> implementation detail. for extensible parallel connection design/protocol, it
> require to keep chunks temporary.
Well, exposing a certain URL format is not an implementation detail :-) And
btw, it's not restful - the client has to know how the chunk mechanism works
(but that's probably necessary in case you want to do chunks).
> Support of chunked file upload into Sling
> -----------------------------------------
>
> Key: SLING-2707
> URL: https://issues.apache.org/jira/browse/SLING-2707
> Project: Sling
> Issue Type: New Feature
> Components: General
> Reporter: Shashank Gupta
> Attachments: uploadclient.jar
>
>
> Use cases:
> 1. Large file upload - With high speed internet connections, advent of cloud
> and HD going mainstream, Sling should support large files (> 2GB) upload.
> 2. Fault tolerant uploads - Sling should provide capability to resume upload
> from failure point. It should not require client to restart the complete
> upload process.
> 3. Faster upload: Sling should support its clients to initiate multiple
> connection and upload file chunks in parallel.
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