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Werk #19461: Fix Proxmox VE node allocation crash on missing CPU or memory capacity data

Component Checks & agents
Title Fix Proxmox VE node allocation crash on missing CPU or memory capacity data
Date May 6, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.5.0p6
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Previously, the Proxmox VE CPU Allocation and Proxmox VE Memory Allocation services could crash with a KeyError when the Proxmox VE API did not include maxcpu or maxmem in the node status response — for example on offline nodes or nodes with incomplete API responses.

Both services now handle missing capacity data gracefully: if maxcpu or maxmem are absent from the node data, the allocation sections are not emitted and no service is discovered for that node.

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