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Werk #17940: Unbreak "cmk --convert-rrds" / "cmk-convert-rrds" for migration from Nagios to CMC RRDs

Component Core & setup
Title Unbreak "cmk --convert-rrds" / "cmk-convert-rrds" for migration from Nagios to CMC RRDs
Date Apr 10, 2025
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.5.0b1 Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0b6 Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.3.0p31 Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

The command cmk --convert-rrds (2.3) / cmk-convert-rrds (2.4+) can be used to migrate recorded performance data from the Nagios to the CMC format after updating from the raw to a commercial Checkmk edition. Prior to this werk, this command was disfunctional for this use case. After executing the command, the Checkmk UI displayed metrics with titles that consisted of a single letter only (next to the correct metrics).

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