Werk #17755: Ignore empty CMC state files
| Component | The Checkmk Micro Core | ||||||
| Title | Ignore empty CMC state files | ||||||
| Date | Jun 17, 2025 | ||||||
| Level | Trivial Change | ||||||
| Class | Bug Fix | ||||||
| Compatibility | Compatible - no manual interaction needed | ||||||
| Checkmk versions & editions |
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When the state file of the CMC ends up being empty due to e.g. some problems in the filesystem, it was still considered to be a valid state file. While this is technically correct (everything is at its default then), this is not what one wants: All switches in the master control would be "off", so monitoring would effectively be disabled then.
We now ignore such an empty state file, so the CMC state effectively starts from scratch, then with no acknowledgements, comments, ad hoc downtimes, etc. While this is not perfect, it is better than a running but effectively disabled monitoring site.