Werk #18948: Azure: performance improvement for resource health monitoring

Component

Checks & agents

Title

Azure: performance improvement for resource health monitoring

Date

Jan 21, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.4.0p20	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p43 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

With this werk, we are fixing a performance degradation introduced with werk #17743: the Azure resource health API we were using returns health data for all resources in the monitored subscription. This causes a huge slowdown when many resources where present.

We have optimized how the agent interacts with the Azure Resource Health API. The agent now targets only the specific resource groups containing monitored resources. Furthermore, these queries are now processed in parallel via threading. This results in a significant performance boost for users with large Azure subscriptions.

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