Jing Zhao created HDFS-5217:
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Summary: Namenode log directory link is inaccessible in secure
cluster
Key: HDFS-5217
URL: https://issues.apache.org/jira/browse/HDFS-5217
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 3.0.0
Reporter: Jing Zhao
Assignee: Jing Zhao
Priority: Minor
Currently in a secured HDFS cluster, 401 error is returned when clicking the
"NameNode Logs" link.
Looks like the cause of the issue is that the httpServer does not correctly set
the security handler and the user realm currently, which causes the
httpRequest.getRemoteUser (for the log URL) to return null and later be
overwritten to the default web name (e.g., "dr.who") by the filter. In the
meanwhile, in a secured cluster the log URL requires the http user to be an
administrator. That's why we see the 401 error.
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