nextcloud / nextcloud/server

File upload to share of external storage local / copy step after complete

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0. Needs triage enhancement feature: dav hotspot: file transfer performance
Dominant language
PHP
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Description

The file upload from the browser to the share is chunked and responsive, but at the end there is the merge(? zusammenführen) step which just blocks (and may cause timeouts) in which the complete file is copied to its final destination. Which can take a while for "huge" (>=10GByte) files.

I mean its literally a local path, why cant the part file be created and written in its final destination while the upload is happening?

Tidy up reasons if something fails?

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Research direction

Start by tracing the browser upload flow through chunk merging and the copy to the final external-storage destination; the issue does not name specific files or tests. Determine whether writing directly to the final local path is supported and how failures should clean up partial files. Done means large uploads avoid the blocking copy step without leaving untidy partial files.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
backend, cloud
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

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