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https://issues.apache.org/jira/browse/HADOOP-16454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17061375#comment-17061375
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Akira Ajisaka commented on HADOOP-16454:
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Unassigned. Please feel free to reassign and work on this issue.
> Document how to share delegation tokens between multiple HttpFS servers
> -----------------------------------------------------------------------
>
> Key: HADOOP-16454
> URL: https://issues.apache.org/jira/browse/HADOOP-16454
> Project: Hadoop Common
> Issue Type: Improvement
> Components: documentation, httpfs
> Environment: Kerberized, clients connect to multiple HttpFS servers
> via load balancer
> Reporter: Akira Ajisaka
> Assignee: Akira Ajisaka
> Priority: Minor
>
> In our environment, multiple HttpFS servers are deployed for the clients
> outside the HDFS cluster. As we are using external load balancer service for
> the HttpFS servers, the following situation may happen:
> 1. A client authenticates with a HttpFS server and gets a delegation token.
> Using the delegation token, the client can access to the NameNode.
> 2. In the next session, the client authenticates with another HttpFS server
> (via load balancer) using the same delegation token. The client fails to
> access because the other HttpFS server does not have the information of the
> delegation token.
> This issue is to document how to fix this situation.
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