I found that the humanReadableInt(long number) method in the hive/common/src/java/org/apache/hive/common/util/HiveStringUtils.java file contains code which has a race condition as shown in Hadoop (issue tracking ID
HADOOP-9252: https://issues.apache.org/jira/browse/HADOOP-9252). The fix can also be seen in the Hadoop code base.
I couldn't find a call to the method anywhere else in the code. But it might be worth to fix.