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From "Stephen Chu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4295) Using port 1023 should be valid when starting Secure DataNode
Date Mon, 10 Dec 2012 19:59:22 GMT
Stephen Chu created HDFS-4295:
---------------------------------

             Summary: Using port 1023 should be valid when starting Secure DataNode
                 Key: HDFS-4295
                 URL: https://issues.apache.org/jira/browse/HDFS-4295
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: security
    Affects Versions: 2.0.0-alpha
            Reporter: Stephen Chu


In SecureDataNodeStarter:
{code}
if ((ss.getLocalPort() >= 1023 || listener.getPort() >= 1023) &&
        UserGroupInformation.isSecurityEnabled()) {
      throw new RuntimeException("Cannot start secure datanode with unprivileged ports");
}
{code}

This prohibits using port 1023, but this should be okay because only root can listen to ports
below 1024.

We can change the >= to >.

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