We ran into a issue where an improper handling of an exception resulted in 100GB log and eventually causing out of space on DAY CQ author. On being out of space server shutdown abruptly. There is option in day cq to avoid this kind of corruption
- CLOSE (default): The repository is shut down.
- WAIT: The repository will block operations until sufficient disk space becomes available again.
- THROW:Repository operations will throw an exception.
Sourced from here