Werk #11997: mk_docker.py: Handle parallel calls of the plugin

Komponente Checks & agents
Titel mk_docker.py: Handle parallel calls of the plugin
Datum 25.01.2021
Checkmk Edition Checkmk Raw (CRE)
Checkmk-Version 2.0.0b5 2.1.0b1
Level Kleine Änderung
Klasse Bugfix
Kompatibilität Kompatibel - benötigt kein manuelles Eingreifen

The docker API will not allow parallel calls to its 'df' command. Since this command is notoriously long running, the section 'docker_node_disk_usage' was often missing if the agent has been called multiple times in parallel.

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