nextcloud / nextcloud/deck

share a board to a large group causes Nextcloud unusable

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#2,015 5 comments 1 reaction 0 assignees View on GitHub

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1. to develop bug feature: sharing performance 🚀
Dominant language
JavaScript
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Description

I'm not sure if this is a limitation or a bug, as I'm new to Nextcloud and this plugin.

If I create and share a board to a large group, for example a group of about 400 persons, any action causes Nextcloud unusable.
The actions include adding a list, view the board from others.
The problem comes immediately after the action, as the status check(e.g. visit /status.php) starts to fail even with 30 seconds timeout.
The CPU usage surges as the problem comes.
The only way to recover is to restart and delete the shared board.

Nextcloud 18.0.4
Deck 1.0.2

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First steps

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Research direction

Reproduce with a board shared to a group of about 400 people, then add a list or view the board from another account. Monitor /status.php response time and CPU usage; done means these actions no longer make Nextcloud unusable or require deleting the board and restarting the server.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
backend, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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