Steve Loughran created HADOOP-12840: ---------------------------------------
Summary: UGI to log@ debug stack traces when failing to find groups for a user Key: HADOOP-12840 URL: https://issues.apache.org/jira/browse/HADOOP-12840 Project: Hadoop Common Issue Type: Sub-task Components: security Affects Versions: 2.8.0 Reporter: Steve Loughran Priority: Minor If {{UGI.getGroupNames()}} catches an IOE raised by {{groups.getGroups(getShortUserName())}} then it simply logs @ debug "No groups available for user". The text from the caught exception and stack trace are not printed. One IOException raised is the explicit "user not in groups" exception, but there could be other causes too —if that happens the entire problem will be missed. -- This message was sent by Atlassian JIRA (v6.3.4#6332)