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Add information for the logger module error behavior and file size limitations #2616

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Jul 11, 2023
Merged

Add information for the logger module error behavior and file size limitations #2616

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543baa2
Add file size limitiations in logger documentation
Jul 9, 2023
0765f9e
Add error behavior explanation in logger module
Jul 9, 2023
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10 changes: 9 additions & 1 deletion en/dev_log/logging.md
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Expand Up @@ -14,7 +14,9 @@ A new log file is created for each arming session on the SD card.
To display the current state, use `logger status` on the console.
If you want to start logging immediately, use `logger on`.
This overrides the arming state, as if the system was armed.
`logger off` undoes this.
`logger off` undoes this.

If logging stops due to a write error, or reaching the [maximum file size](#file-size-limitations), PX4 will automatically restart logging in a new file.

For a list of all supported logger commands and parameters, use:

Expand Down Expand Up @@ -79,6 +81,12 @@ This configuration will log sensor_accel 0 at full rate, sensor_accel 1 at 10Hz,

There are several scripts to analyze and convert logging files in the [pyulog](https://github.com/PX4/pyulog) repository.


## File size limitations

The maximum file size depends on the file system and OS.
The size limit on NuttX is currently around 2GB.

## Dropouts

Logging dropouts are undesired and there are a few factors that influence the
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