Kai Sasaki created HDFS-8613:
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Summary: Add option to list up allowed hosts that can do any
operation to NameNode.
Key: HDFS-8613
URL: https://issues.apache.org/jira/browse/HDFS-8613
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 2.7.0
Reporter: Kai Sasaki
Assignee: Kai Sasaki
Priority: Minor
Current NameNode receives all operations through client protocol from any
hosts.
However, some critical operations such as {{format}} should be restricted with
not only Kerberos authentication but also with host names in order to prevent
us from formatting NameNode by mistake. It is better to add option to write
some allowed hosts which can do any operations to NameNode.
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