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* e.g. to e.g., and proper case for Home Assistant * Instructions how to -> Instructions on how to
84 lines
2.1 KiB
Markdown
84 lines
2.1 KiB
Markdown
---
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layout: page
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title: "Logger"
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description: "Instructions on how to enable the logger component for Home Assistant."
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date: 2015-11-12 17:00
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sidebar: true
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comments: false
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sharing: true
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footer: true
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logo: home-assistant.png
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ha_category: "Utility"
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---
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The logger component lets you define the level of logging activities in Home Assistant.
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To enable the logger in your installation, add the following to your `configuration.yaml` file:
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To have a full log and log everything only this entry is needed (without any qualifier):
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```yaml
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logger:
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```
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To log all messages and ignore events lower than critical for specified components.
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```yaml
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# Example configuration.yaml entry
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logger:
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default: info
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logs:
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homeassistant.components.device_tracker: critical
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homeassistant.components.camera: critical
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```
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To ignore all messages lower than critical and log event for specified components.
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```yaml
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# Example configuration.yaml entry
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logger:
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default: critical
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logs:
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homeassistant.components: info
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homeassistant.components.rfxtrx: debug
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homeassistant.components.device_tracker: critical
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homeassistant.components.camera: critical
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```
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Possible log severities are:
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- critical
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- fatal
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- error
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- warning
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- warn
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- info
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- debug
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- notset
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### {% linkable_title Service `set_level` %}
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You can alter log level for one or several components using the service
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``logger.set_level``. It accepts the same format as ``logs`` in the configuration.
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An example call might look like this:
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```yaml
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service: logger.set_level
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data:
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homeassistant.components: warning
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homeassistant.components.media_player.yamaha: debug
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```
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The log information are stored in the [configuration directory](/docs/configuration/) as `home-assistant.log` and you can read it with the command-line tool `cat` or follow it dynamically with `tail -f`.
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If you are a Hassbian user you can use the example below:
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```bash
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$ tail -f /home/homeassistant/.homeassistant/home-assistant.log
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```
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If you are a Hass.io user you can use the example below, whenlogged in through the ssh addon:
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```bash
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$ tail -f /config/home-assistant.log
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```
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