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37 lines
2.0 KiB
Markdown
37 lines
2.0 KiB
Markdown
# Setting up synapse-auto-compressor (optional)
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The playbook can install and configure [synapse_auto_compressor](https://github.com/matrix-org/rust-synapse-compress-state/#automated-tool-synapse_auto_compressor) for you.
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It's a CLI tool that automatically compresses Synapse's `state_groups` database table in the background.
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See the project's [documentation](https://github.com/matrix-org/rust-synapse-compress-state/#automated-tool-synapse_auto_compressor) to learn what it does and why it might be useful to you.
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## Adjusting the playbook configuration
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Add the following configuration to your `inventory/host_vars/matrix.example.com/vars.yml` file:
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```yaml
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matrix_synapse_auto_compressor_enabled: true
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```
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## Installing
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After configuring the playbook, run it with [playbook tags](playbook-tags.md) as below:
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<!-- NOTE: let this conservative command run (instead of install-all) to make it clear that failure of the command means something is clearly broken. -->
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```sh
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ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start
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```
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The shortcut commands with the [`just` program](just.md) are also available: `just install-all` or `just setup-all`
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`just install-all` is useful for maintaining your setup quickly when its components remain unchanged. If you adjust your `vars.yml` to remove other components, you'd need to run `just setup-all`, or these components will still remain installed. Note these shortcuts run the `ensure-matrix-users-created` tag too.
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## Usage
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After installation, `synapse_auto_compressor` will run automatically every day at `00:00:00` (as defined in `matrix_synapse_auto_compressor_calendar` by default).
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## Manually start the tool
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For testing your setup it can be helpful to not wait until 00:00. If you want to run the tool immediately, log onto the server and run `systemctl start matrix-synapse-auto-compressor`. Running this command will not return control to your terminal until the compression run is done, which may take a long time. Consider using [tmux](https://en.wikipedia.org/wiki/Tmux) if your SSH connection is unstable.
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