Database disk image is malformed - Error coming from nowhere

[Alexey]

This error will popup if the container was a abruptly stopped for any reason - system update, reboot and so on.
The graceful stop is docker stop -t 300 storagenode, by default the daemon is uses a 10 seconds timeout, which is not enough to gracefully stop the storagenode.
You can take a look on this topic to configure your docker daemon:

Docker post installation configuration

I would like suggest add to the documentation docker post installation steps: limit docker log files and add retention: "log-driver": "json-file", "log-opts": { "max-size": "100m", "max-file": "3" } and change default shutdown timeout parameter: "shutdown-timeout": 300 I tested both parameters on my node, and evrything is working fine. If you will reboot host machine, no need to stop container before with docker stop storagenode -t 300 command, now daemon will handle it easy…

To fix a malformed database you can use this guide:

How to fix a "database disk image is malformed"