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From "Nanda kumar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-13348) Ozone: Update IP and hostname in Datanode from SCM's response to the register call
Date Fri, 06 Apr 2018 19:50:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-13348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16428848#comment-16428848
] 

Nanda kumar commented on HDFS-13348:
------------------------------------

Thanks [~shashikant] for bringing it up, we have to make both clusterId and DatanodeUuid as
required field and handle it properly.
As of now, we don't do anything with the response of datanode registration. We should validate
the clusterId and also the datanodeUuid as done in {{HeartbeatEndpointTask#processResponse}}
line:133. We can do this in follow-up jiras.

> Ozone: Update IP and hostname in Datanode from SCM's response to the register call
> ----------------------------------------------------------------------------------
>
>                 Key: HDFS-13348
>                 URL: https://issues.apache.org/jira/browse/HDFS-13348
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>            Reporter: Nanda kumar
>            Assignee: Shashikant Banerjee
>            Priority: Major
>         Attachments: HDFS-13348-HDFS-7240.000.patch, HDFS-13348-HDFS-7240.001.patch
>
>
> Whenever a Datanode registers with SCM, the SCM resolves the IP address and hostname
of the Datanode form the RPC call. This IP address and hostname should be sent back to Datanode
in the response to register call and the Datanode has to update the values from the response
to its {{DatanodeDetails}}.



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