Werk #22084: cmk_site_statistics: don't crash when the site reports no core PID

Component

Checks & agents

Title

cmk_site_statistics: don't crash when the site reports no core PID

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

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

The check adds the core process ID as an informational notice, falling back to an older field name for sites from before Checkmk 1.6. That fallback was looked up even when it was not needed, so the service crashed on any site that does not report the old field, as well as on sites whose status data arrived incomplete.

The core PID is now looked up without the crash, and the notice is left out entirely when the site does not report a PID. Everything else the service reports is unaffected.

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