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Remove synapse-janitor support

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Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/746
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Slavi Pantaleev
2020-12-11 23:24:42 +02:00
parent 86988ae180
commit 47613e5a27
6 changed files with 7 additions and 149 deletions
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24
docs/maintenance-synapse.md
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@ -4,14 +4,11 @@ This document shows you how to perform various maintenance tasks related to the
Table of contents:
- [Purging unused data with synapse-janitor](#purging-unused-data-with-synapse-janitor), for when you wish to delete unused data from the Synapse database
- [Purging old data with the Purge History API](#purging-old-data-with-the-purge-history-api), for when you wish to delete in-use (but old) data from the Synapse database
- [Synapse maintenance](#synapse-maintenance)
- [Purging old data with the Purge History API](#purging-old-data-with-the-purge-history-api)
- [Compressing state with rust-synapse-compress-state](#compressing-state-with-rust-synapse-compress-state)
- [Purging unused data with synapse-janitor](#purging-unused-data-with-synapse-janitor)
- [Browse and manipulate the database](#browse-and-manipulate-the-database)
- [Browse and manipulate the database](#browse-and-manipulate-the-database), for when you really need to take matters into your own hands
@ -57,27 +54,6 @@ If you need to adjust this, pass: `--extra-vars='matrix_synapse_rust_synapse_com
After state compression, you may wish to run a [`FULL` Postgres `VACUUM`](./maintenance-postgres.md#vacuuming-postgresql).
## Purging unused data with synapse-janitor
**NOTE**: There are [reports](https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/465) that **synapse-janitor is dangerous to use and causes database corruption**. You may wish to refrain from using it.
When you **leave** and **forget** a room, Synapse can clean up its data, but currently doesn't.
This **unused and unreachable data** remains in your database forever.
There are external tools (like [synapse-janitor](https://github.com/xwiki-labs/synapse_scripts)), which are meant to solve this problem.
To ask the playbook to run synapse-janitor, execute:
```bash
ansible-playbook -i inventory/hosts setup.yml --tags=run-postgres-synapse-janitor,start
```
**Note**: this will automatically stop Synapse temporarily and restart it later.
Running synapse-janitor potentially deletes a lot of data from the Postgres database.
You may wish to run a [`FULL` Postgres `VACUUM`](./maintenance-postgres.md#vacuuming-postgresql) after that.
## Browse and manipulate the database
When the [matrix admin API](https://github.com/matrix-org/synapse/tree/master/docs/admin_api) and the other tools do not provide a more convenient way, having a look at synapse's postgresql database can satisfy a lot of admins' needs.