Werk #20141: livestatus_status: tolerate incomplete site status data

Component

Checks & agents

Title

livestatus_status: tolerate incomplete site status data

Date

Jul 31, 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
2.5.0p11	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p36 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

The service OMD <site> performance could go to UNKNOWN with "check failed - please submit a crash report!", the crash report showing KeyError: 'livestatus_version'.

This happened when the agent delivered a livestatus_status section that did not contain the expected status columns. In the reported cases that section carried the certificate data belonging to the livestatus_ssl_certs section, and no livestatus_ssl_certs section was sent at all.

Why the agent output ended up that way is not known, so this is a defensive fix. Instead of crashing, the service now reports UNKNOWN with "Incomplete livestatus status data received". Sites that send complete status data are not affected.

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