Werk #12901: ps: Fix crash if only some node of a cluster provide memory info

Component Checks & Agents
Title ps: Fix crash if only some node of a cluster provide memory info
Date Jun 21, 2021
Checkmk Editon Checkmk Raw (CRE)
Checkmk Version 2.1.0i1 2.0.0p6
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

The ps check plugin crashed if services where clustered, but only some nodes provided a memory information and others did not.

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