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Decommissioned node, Decommission status of Node in NameNode UI status is different from RM UI

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Decommissioned node, Decommission status of Node in NameNode UI status is different from RM UI

Contributor

I have decommissioned Node(DataNode and NodeManager) using Ambari, After decommission is successful. The status in NameNode UI and RM UI got updated saying:

NameNode - "DeadNodes : 3 (Decommissioned)"

RM UI - "Decommissioned Nodes 3"

Later I had deleted Decommissioned Nodes from Ambari.

At present, NameNode UI status got updated saying:

NameNode - "DeadNodes : 0 (Decommissioned)"

But RM UI is still remained same:

RM UI - "Decommissioned Nodes 3"

is there any Amber UI issue ?? or do I need to perform any additional steps ??

1 ACCEPTED SOLUTION

Accepted Solutions

Re: Decommissioned node, Decommission status of Node in NameNode UI status is different from RM UI

@Dhiraj

Update the ResourceManager with the new set of NodeManagers. On the ResourceManager host machine, execute the following command:

su <YARN_USER>
yarn rmadmin -refreshNodes

where <YARN_USER> is the user who owns the YARN services, for example, yarn.

Hope this helps you. Link

2 REPLIES 2

Re: Decommissioned node, Decommission status of Node in NameNode UI status is different from RM UI

@Dhiraj

Update the ResourceManager with the new set of NodeManagers. On the ResourceManager host machine, execute the following command:

su <YARN_USER>
yarn rmadmin -refreshNodes

where <YARN_USER> is the user who owns the YARN services, for example, yarn.

Hope this helps you. Link

Re: Decommissioned node, Decommission status of Node in NameNode UI status is different from RM UI

Contributor

Thanks for the comment @Sridhar Reddy, will let you once i try this.

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