[HADOOP-15150] in FsShell, UGI params should be overidden through env vars(-D arg)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.0
• Fix Version/s: 3.1.0, 2.10.0, 2.9.1, 3.0.1, 2.8.4
• Hadoop Flags: Reviewed
• Assignee: Brahma Reddy Battula
• Reporter: Brahma Reddy Battula
• Created: 29/Dec/17 04:52
• Updated: 18/Jan/18 06:48
• Resolved: 18/Jan/18 06:48

Description

org.apache.hadoop.security.UserGroupInformation#ensureInitialized,will always get the configure from the configuration files.So that, -D args will not take effect.

  private static void ensureInitialized() {
    if (conf == null) {
      synchronized(UserGroupInformation.class) {
        if (conf == null) { // someone might have beat us
          initialize(new Configuration(), false);
        }
      }
    }
  }