Werk #22605: NTNX Host: no crash on missing host data

Component

Checks & agents

Title

NTNX Host: no crash on missing host data

Date

Oct 6, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p16 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p38 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

If Nutanix Prism reported no memory capacity or boot time for a host, for example while the host is in maintenance mode, the NTNX Host service crashed with TypeError: float() argument must be a string or a real number, not 'NoneType'.

The service now reports the host state and the Acropolis connection as before, and shows each missing value (number of VMs, memory, boot time) as UNKNOWN with "got no value".

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