Akira Ajisaka created HADOOP-16454:
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Summary: Share delegation tokens between multiple HttpFS servers
Key: HADOOP-16454
URL: https://issues.apache.org/jira/browse/HADOOP-16454
Project: Hadoop Common
Issue Type: New Feature
Components: httpfs
Environment: Kerberized, clients connect to multiple HttpFS servers
via load balancer
Reporter: Akira Ajisaka
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.
It would be nice to have a feature like HADOOP-14445 in HttpFS to fix the
situation.
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