问题描述 hadoop升级2.2.0后运行job报错Shell$ExitCodeException: id: dr.who: No such user 2013-12-03 11:34:56,590 WARN org.apache.hadoop.security.UserGroupInformation: No groups available for user dr.who 2013-12-03 11:34:56,589 WARN org.apache.hadoop.security.Shel