Haohui Mai created HADOOP-11726:
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Summary: Allow applications to access both secure and insecure
clusters at the same time
Key: HADOOP-11726
URL: https://issues.apache.org/jira/browse/HADOOP-11726
Project: Hadoop Common
Issue Type: Bug
Reporter: Haohui Mai
Today there are multiple integration issues when an application (particularly,
distcp) access both secure and insecure clusters (e.g., HDFS-6776 / HDFS-7036)
There are four use cases in this scenario:
* Secure <-> Secure. Works.
* Insecure <-> Insecure. Works.
* Accessing secure clusters from insecure client. Will not work as expected.
The insecure client won't be able to be authenticated with the secure client,
otherwise it is a security vulnerability.
* Accessing insecure clusters from secure client. Currently it will not work as
the secure client won't be able to obtain a delegation token from the insecure
cluster.
This jira proposes to fix the last use case.
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