### Docker containers exhausts space due to the `json-file`
Docker's [default logging driver is `json-file`](https://docs.docker.com/config/containers/logging/configure/#configure-the-default-logging-driver), which performs no log rotation by default. As a result of this lack of rotation, log files stored by the `json-file` driver can consume a significant amount of disk space for containers that generate a lot of output. This can lead to disk space exhaustion. To address this, use [`journald`](https://docs.docker.com/config/containers/logging/journald/) as the logging driver when available, or [another supported driver](https://docs.docker.com/config/containers/logging/configure/#supported-logging-drivers) with native rotation support.
### Buffer overflow error when starting Docker
If you receive this buffer overflow error, you should purge old log files in
`/var/log/gitlab`:
```plaintext
buffer overflow detected : terminated
xargs: tail: terminated by signal 6
```
Removing old log files helps fix the error, and ensures a clean startup of the instance.
