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Decommisiong status for a dead node

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Decommisiong status for a dead node

Expert Contributor

Hi all,

I tried to decomission a datanode because of some hardware failures but during decommission process the host rebooted by itself, so now when i click Hosts(ambari) and see the status, the datanode is decomissioned but when i see HDFS dashboard it shows 1 dead and 1 decomissioning.. how can i change this status and how to confirm the node is decomissioned correctly? Do i need to restart namenode?

Thanks.

1 ACCEPTED SOLUTION

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Re: Decommisiong status for a dead node

Expert Contributor

@Geoffrey Shelton Okot

Its resolved. I just recomissioned the datanode and started it and then decomissioned again.... now the node is completely decomissioned.

Thank you for your time.

View solution in original post

6 REPLIES 6
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Re: Decommisiong status for a dead node

Mentor

@PJ

Check and ensure the ambari-agent is stopped on the dead datanode.


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Re: Decommisiong status for a dead node

Expert Contributor

@Geoffrey Shelton Okot

Thanks for the reply. I stopped ambari-agent and waited almost 15-20 min but still it says decomissioning on the hdfs dashboard summary.

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Re: Decommisiong status for a dead node

Mentor

@PJ

Can you restart the ambar-server

# ambari-server restart
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Re: Decommisiong status for a dead node

Expert Contributor

@Geoffrey Shelton Okot

I cannot restart ambari-server right away. But i was thinking this is not the issue with ambari, even at hadoop level it is showing decomission is in progress, like when i do hdfs dfsadmin -report

Decommission Status : Decommission in progress

Highlighted

Re: Decommisiong status for a dead node

Expert Contributor

@Geoffrey Shelton Okot

Its resolved. I just recomissioned the datanode and started it and then decomissioned again.... now the node is completely decomissioned.

Thank you for your time.

View solution in original post

Re: Decommisiong status for a dead node

Mentor

@PJ

Okay good to know enjoy

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