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element-hq / dendrite

Dendrite is a second-generation Matrix homeserver written in Go!
https://element-hq.github.io/dendrite/
GNU Affero General Public License v3.0
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Feature Request: message & media retention #3330

Open matrixbot opened 2 weeks ago

matrixbot commented 2 weeks ago

This issue was originally created by @Kimiblock at https://github.com/matrix-org/dendrite/issues/3330.

Description:

Similar to https://github.com/element-hq/synapse, delete messages & medias from the database and media repo if contents weren't accessed in a configurable amount of time.

For reference: Synapse config manual 1 2

This can greatly benefit use cases with limited disk space, such as Dendrite on VPS.

matrixbot commented 2 weeks ago

This comment was originally posted by @spaetz at https://github.com/matrix-org/dendrite/issues/3330#issuecomment-1992258648.

At the expense if self-promoting myself excessively: media retention kind if got implemented through a 3rd party tool (https://gitlab.com/sspaeth/cleanmedia).

If one needs a more finegrained policy, the dedicated media repository server is probably better suited which can be plugged into any server.

dendrite knows nothing about which media was posted in which room and when it was accessed last. So adding a rentention policy into the server is a lot of work.

Nothing of the above is about message retention though.

matrixbot commented 2 weeks ago

This comment was originally posted by @Kimiblock at https://github.com/matrix-org/dendrite/issues/3330#issuecomment-1994863522.

Well… the intention of cleaning media not accessed in a certain amount of time is to preserve frequently used (and probably important) files, such as user avatars and sticker packs

matrixbot commented 2 weeks ago

This comment was originally posted by @Kimiblock at https://github.com/matrix-org/dendrite/issues/3330#issuecomment-2035096654.

After a bit of digging, it turns out that MMR does support media retention and made a handy script https://github.com/Kimiblock/MMR-retention.

Not sure whether or not to close this issue though… as this still requires setting up MMR and Redis.

matrixbot commented 2 weeks ago

This comment was originally posted by @Dreamsorcerer at https://github.com/matrix-org/dendrite/issues/3330#issuecomment-2178807417.

I'm more interested in the message retention, so let's atleast keep it open for that.