CheckMK 2.3 Raw Graphs Fail, rrdtool errors and NPCD timeout

You can also run perl -le 'use RRDs;' as a site user. If this runs an error, then please double check if you performed all actions joerg recommended. Or wait for the next patch release

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p3 is out with the fix: Fix performance issues when processing performance data (process_perfdata.pl) and missing metric data

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