And an update! I talked with the engineer that wrote unilog originally.<p>The original headline feature of unilog was that it wouldn&#x27;t block writes if the disk filled up. multilog does - if it can&#x27;t write a line to disk, it stops ingesting data off of stdin, which eventually causes the application to hang writing to stdout.<p>unilog sends you an email and starts dropping log lines, which we decided better matched the tradeoffs we wanted to make - losing logs sucks, but not as much as blocking your application until you figure out how to free up disk.