Daniel Templeton created HADOOP-12566: -----------------------------------------
Summary: Add NullGroupMapping Key: HADOOP-12566 URL: https://issues.apache.org/jira/browse/HADOOP-12566 Project: Hadoop Common Issue Type: Improvement Reporter: Daniel Templeton Assignee: Daniel Templeton Add a {{NullGroupMapping}} for cases where user groups are not used. {{ShellBasedUnixGroupMapping}} can be used in places where latency is not important. In places like starting a container, it's worth in to avoid the extra fork and exec. -- This message was sent by Atlassian JIRA (v6.3.4#6332)