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Posted to hdfs-dev@hadoop.apache.org by "Fengnan Li (Jira)" <ji...@apache.org> on 2021/02/10 11:07:00 UTC

[jira] [Created] (HDFS-15831) Adopt more DNS resolving for HDFS

Fengnan Li created HDFS-15831:
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             Summary: Adopt more DNS resolving for HDFS
                 Key: HDFS-15831
                 URL: https://issues.apache.org/jira/browse/HDFS-15831
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Fengnan Li
            Assignee: Fengnan Li


There are some opportunities inside HDFS where we can use DNS for hosts instead of host names. This will help to a large extent in two aspects:
1. Server management, i.e. host replacement
2. Client transparency, i.e. client config with DNS without knowing the specific host.

It is worth mentioning that secure environment should be supported, we recommend having the principal wildcard matching turned on.



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