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From "Li Cheng (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HDDS-1933) Datanode should use hostname in place of ip addresses to allow DN's to work when ipaddress change
Date Thu, 19 Sep 2019 07:43:00 GMT

    [ https://issues.apache.org/jira/browse/HDDS-1933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16933136#comment-16933136
] 

Li Cheng commented on HDDS-1933:
--------------------------------

After discussion, we suppose the change could remain as it is now. And [~msingh] Please try
to set DFS_DATANODE_USE_DN_HOSTNAME_DEFAULT = true in kubernetes env and see it works. 

> Datanode should use hostname in place of ip addresses to allow DN's to work when ipaddress
change
> -------------------------------------------------------------------------------------------------
>
>                 Key: HDDS-1933
>                 URL: https://issues.apache.org/jira/browse/HDDS-1933
>             Project: Hadoop Distributed Data Store
>          Issue Type: Bug
>          Components: Ozone Datanode, SCM
>    Affects Versions: 0.4.0
>            Reporter: Mukul Kumar Singh
>            Priority: Blocker
>
> This was noticed by [~elek] while deploying Ozone on Kubernetes based environment.
> When the datanode ip address change on restart, the Datanode details cease to be correct
for the datanode. and this prevents the cluster from functioning after a restart.



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