You can disable YARN ResourceManager High Availability using Cloudera
Manager.
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In Cloudera Manager, select the YARN service.
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Click Actions.
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Select Disable High Availability.
A screen showing the hosts running the ResourceManagers
displays.
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Select the ResourceManager (host) you want to remain as the single
ResourceManager.
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Click Continue.
Cloudera Manager runs a set of commands that stop the YARN service,
remove the standby ResourceManager and the Failover Controller, restart
the YARN service, and redeploy client configurations.