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Werk #10534: Check_MK discovery: Was not always able to discover new snmp checks

ComponentChecks & Agents
TitleCheck_MK discovery: Was not always able to discover new snmp checks
Date2020-03-28 16:55:10
Checkmk EditionCheckmk Raw Edition (CRE)
Checkmk Version1.6.0p11,1.7.0i1
LevelTrivial Change
ClassBug Fix
CompatibilityCompatible - no manual interaction needed

The "Check_MK discovery" check was unable to discover entirely new check_types. Its discovery phase always relies on cached data, if available. Since the SNMP datasource only fetches the data it actually needs, there is no guarantee that all services will be discovered.

So the "Check_MK discovery" service failed to discover any interfaces, if the snmp host did not have any interfaces beforehand. Through WATO however, the discovery was successfull, since this mechanism may bypass the snmp caching entirely.