Werk #12502: Rare bug during parsing for clustered custom plugins

Component Checks & Agents
Title Rare bug during parsing for clustered custom plugins
Date Apr 11, 2021
Checkmk Editon Checkmk Raw (CRE)
Checkmk Version 2.1.0i1 2.0.0p2
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

This werk only affects users that have certain custom plugins developed against the old check API in a clustered setup.

Specificly: This affects you, if you have

  • a custom check plugin
  • using the *_item_state features in the parse function
  • in a clustered service setup

In this case, you probably observed crashes of the parse function or stale services (we have never observed this theoretical bug). This will be fixed. However: If this actually affected you, you should consider moving all item_state related logic into the check function (as this will be enforced by the new API).

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