Root Drive virt. Appliance suddenly full

Troubleshooting
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1

CMK version: 2.4.9p9
OS version: virt. Appliance 1.7.11

Error message:
For 39 hours, the Rood Drive of the Virt. Appliance has been filling up massively, but also emptying again. And this keeps happening over and over again.

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image2400×678 138 KB

Normally, approximately 512 MB are in use, but now it is constantly between 80% and 100%.

Since this has never happened before, I am somewhat surprised and wondering what could be causing it.
Have you ever seen this behavior before?
What is the best way to identify and fix the problem?

Thanks,
Oliver

2

If I have figured it out correctly, it is the /rw that has this massive fluctuation in occupancy.

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image958×172 34.8 KB

Only the directory changes the assignment.
What could this be and why is it happening now all of a sudden?

3

Check with lsof | grep deleted for hidden files. The SQLite VACUUM process, for example, creates temporary files during Event History cleanup that may continue using disk space even after deletion.