Index: ql/src/java/org/apache/hadoop/hive/ql/processors/ResetProcessor.java =================================================================== --- ql/src/java/org/apache/hadoop/hive/ql/processors/ResetProcessor.java (revision 1641766) +++ ql/src/java/org/apache/hadoop/hive/ql/processors/ResetProcessor.java (working copy) @@ -50,6 +50,8 @@ String value = conf.get(key); if (value != null) { ss.getConf().set(key, value); + } else { + ss.getConf().getAllProperties().remove(key); } } ss.getOverriddenConfigurations().clear();