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https://issues.apache.org/jira/browse/SLING-2707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13581294#comment-13581294
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Alexander Klimetschek commented on SLING-2707:
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> Introducing a new node type sling:PartialFile seems unnecessary complexity
Ok, the implementation specifics can be discussed separately.
> Current spec with part number gives opportunity for future extension for
> supporting uploading of parallel chunks
My proposal using the sling post servlet and @RangeStart/End allows for the
same; it might be necessary to (initially) include the full file size (e.g.
@FileLength) as well, so the server side knows when it is finished and can
assemble the final file.
Regarding S3: as Ian mentioned, the use case for their chunks was different
than the resumable upload we are discussing here. So it should not really
dominate how our solution should look like. And IMHO it's quite intuitive to
follow the Range concept of HTTP GETs - byte ranges are more flexible and
self-describing than a fixed number of chunks. The only thing is that we can't
use the Range headers directly as it's not spec compliant to reuse that header
for PUT/POST/PATCH and we don't want to introduce a proprietary header (X-*
considered harmful). Finally, having the chunk number in the URL is just
complicating things - the sling post servlet feels like a natural place to add
this feature to.
> 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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