Dmitry Lysnichenko created AMBARI-7615:
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Summary: Ambari support for DataNode no longer running as root.
Key: AMBARI-7615
URL: https://issues.apache.org/jira/browse/AMBARI-7615
Project: Ambari
Issue Type: Improvement
Components: ambari-server
Affects Versions: 1.7.0
Reporter: Dmitry Lysnichenko
Assignee: Dmitry Lysnichenko
Fix For: 1.7.0
This feature is new in Champlain.
This feature is intended for use in secure (Kerberized) clusters. The full
steps for configuration are:
# Configure in hdfs-site.xml:
## Set {{dfs.data.transfer.protection}} to {{authentication}}, {{integrity}},
or {{privacy}}. I think {{authentication}} makes sense as the default on new
installs.
## Set {{dfs.datanode.address}} to use a non-privileged port, i.e.
{{0.0.0.0:50010}}.
## Set {{dfs.datanode.https.address}} to use a non-privileged port, i.e.
{{0.0.0.0:50475}}.
## Set {{dfs.http.policy}} to {{HTTPS_ONLY}}.
# Start DataNode as hdfs.
BTW, running as root using privileged ports is still a fully supported
configuration. This should continue to be the default mode. Running as
non-root is opt-in only, so all of the above should be optional.
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