Nate Edel created HDFS-8271:
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Summary: NameNode should bind on both IPv6 and IPv4 if running on
dual-stack machine and IPv6 enabled
Key: HDFS-8271
URL: https://issues.apache.org/jira/browse/HDFS-8271
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Reporter: Nate Edel
Assignee: Nate Edel
NameNode works properly on IPv4 or IPv6 single stack (assuming scripts have
been changed to disable preferIPv4Stack). On dual-stack machines, NameNode
listens only on IPv4 (even ignoring preferIPv6Addresses.)
Our initial use case for IPv6 is IPv6-only clusters, but ideally we'd support
binding to both the IPv4 and IPv6 machine addresses so that we can support
heterogenous clusters (some dual-stack and some IPv6-only machines.)
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