Werk #15870: Gracefully handle individual fails of cached sections

Component

Agent bakery

Title

Gracefully handle individual fails of cached sections

Date

Oct 10, 2023

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.3.0b1	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.2.0p12	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.1.0p35	Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

This changes the behavior of services processing cached data of the Linux, AIX, Solaris, FreeBSD and OpenWrt agent.

Previous to this werk, a service would go to UNKNOWN if the execution of a cached section failed, reporting "Missing data" or "Item not found in monitoring data". Those services now go stale, and only go to UNKNOWN after tripple the time of the caching intervall passed.

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