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Don't delete remote media manually

Aaron Raimist 2020-06-19 10:51:18 -05:00
parent 7a9cff60e6
commit e478f2dd11
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Synapse-database-maintenance-tools.md

@ -7,15 +7,12 @@ The purge remote media API allows server admins to purge old cached remote media
There is no purge API for local media because you may be the only one with a copy. If you are sure you want to delete local media you could use something like the following to delete media that hasn't been accessed in a while.
**Warning 1, check noatime flag**: You also have to double-check that the filesystem where synapse's media store don't have [noatime flag](https://unix.stackexchange.com/questions/219015/how-to-disable-access-time-settings-in-debian-linux/219017#219017). Check it with `mount`, `noatime` is something that is usually enabled by default to reduce read-write operations in the filesystem for a feature is not so demanded.
**Warning 2, what contents**, the next command applies to `local_content local_thumbnails remote_content remote_thumbnail` (that are the subdirectories of media directory), remote content should use [Purge History API](https://github.com/matrix-org/synapse/blob/master/docs/admin_api/purge_history_api.rst), and maybe you want to delete just the `local_content` ?
`find /path/to/synapse/media_store -atime +365 -delete`
`find /path/to/synapse/media_store/local_content -atime +365 -delete`
`find /path/to/synapse/media_store/local_thumbnails -atime +365 -delete`
This will delete media that hasn't been accessed in 365 days.
*I think this section is missing some coherence with the database structure*
**Warning, check noatime flag**: You also have to double-check that the filesystem where synapse's media store don't have [noatime flag](https://unix.stackexchange.com/questions/219015/how-to-disable-access-time-settings-in-debian-linux/219017#219017). Check it with `mount`, `noatime` is something that is usually enabled by default to reduce read-write operations in the filesystem for a feature is not so demanded.
## [Purge History API](https://github.com/matrix-org/synapse/blob/master/docs/admin_api/purge_history_api.rst)
The purge history API allows server admins to purge historic events from their database, reclaiming disk space.