Prasanth Jayachandran created HIVE-17808:
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             Summary: Change System.currentTimeMillis to System.nanoTime for 
elapsed time
                 Key: HIVE-17808
                 URL: https://issues.apache.org/jira/browse/HIVE-17808
             Project: Hive
          Issue Type: Bug
    Affects Versions: 3.0.0
            Reporter: Prasanth Jayachandran


There are many places in QueryInfo and TezJobMonitor that uses 
System.currentTimeMillis() for finding elapsed time. Since currentTimeMillis 
depends on system clock this can cause issues in ntpd environments. Replace 
System.currentTimeMillis() with System.nanoTime() everywhere. 



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