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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 Ultimate MT
2.4.0b6 Checkmk Pro, Checkmk Ultimate, 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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