Problem

the shutdown can take very long and this can lead to corrupted databases (e.g. when docker kills it hard after waiting too little time)

Ideas to solve it

• 2 ways of shutdown (User initiated: write latest state / System initiated: throw away latest state)
• Make it configurable if the latest state is written (slow shutdown) or thrown away (faster shutdown)
• make the shutdown quicker (write it in a different way / flushing out raw)
• more ideas welcome