Kihwal Lee created HADOOP-10315: ----------------------------------- Summary: Log the original exception when getGroups() fail in UGI. Key: HADOOP-10315 URL: https://issues.apache.org/jira/browse/HADOOP-10315 Project: Hadoop Common Issue Type: Bug Affects Versions: 2.2.0, 0.23.10 Reporter: Kihwal Lee
In UserGroupInformation, getGroupNames() swallows the original exception. There have been many occasions that more information on the original exception could have helped. {code} public synchronized String[] getGroupNames() { ensureInitialized(); try { List<String> result = groups.getGroups(getShortUserName()); return result.toArray(new String[result.size()]); } catch (IOException ie) { LOG.warn("No groups available for user " + getShortUserName()); return new String[0]; } } {code} -- This message was sent by Atlassian JIRA (v6.1.5#6160)