Werk #11784: mpre check missing handling for 'U' value in Nagios performance data

Component Checks & Agents
Title mpre check missing handling for 'U' value in Nagios performance data
Date Jan 19, 2021
Checkmk Editon Checkmk Raw (CRE)
Checkmk Version 2.0.0b5 2.1.0i1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

Because the value 'U' (for undefined) has not been handled an exception gets thrown when processing such a value: ValueError (could not convert string to float: 'U') This change will just ignore undefined performance values.

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