Index: ql/src/java/org/apache/hadoop/hive/ql/exec/persistence/HashMapWrapper.java =================================================================== --- ql/src/java/org/apache/hadoop/hive/ql/exec/persistence/HashMapWrapper.java (revision 1451725) +++ ql/src/java/org/apache/hadoop/hive/ql/exec/persistence/HashMapWrapper.java (working copy) @@ -156,8 +156,6 @@ } public boolean isAbort(long numRows,LogHelper console) { - System.gc(); - System.gc(); int size = mHash.size(); long usedMemory = memoryMXBean.getHeapMemoryUsage().getUsed(); double rate = (double) usedMemory / (double) maxMemory;