nextcloud / nextcloud/server

Make Nextcloud WORM filesystem friendly

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#24,597 1 comment 0 reactions 0 assignees View on GitHub

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2. developing enhancement feature: filesystem
Dominant language
PHP
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Avg merge
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Merged PRs (30d)
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Description

Some large scale storage system expose themselves as Write-Once-Read-Many filesystems.
The dCache is one them then and it used by many labs around the world
as a primary storage for their scientific data. To make NextCloud WORM filesystem compliant,
is sufficient to simply remove existing file before overwriting.

The #24596 pull-request has a discussion kick-off purpose (though it does the job), as such change
will allow many sites, that operate dCache, to easy run NextCloud on top of it, without a need to
have yet another storage system.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing pull request #24596 and the issue's WORM filesystem description, then trace the server path used when an existing file is overwritten. Confirm the relevant behavior against a WORM-backed storage setup; done means overwrites work without requiring in-place modification.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
backend
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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