Karthik Kambatla created HADOOP-9369:
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Summary: DNS#reverseDns() can return hostname with . appended at
the end
Key: HADOOP-9369
URL: https://issues.apache.org/jira/browse/HADOOP-9369
Project: Hadoop Common
Issue Type: Bug
Components: net
Affects Versions: 0.23.5, 2.0.3-alpha, 1.1.1
Reporter: Karthik Kambatla
Assignee: Karthik Kambatla
DNS#reverseDns uses javax.naming.InitialDirContext to do a reverse DNS lookup.
This can sometimes return hostnames with a . at the end.
Saw this happen on hadoop-1: two nodes with tasktracker.dns.interface set to
eth0
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