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From "mingleizhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-7139) Refine currentTimeMillis to nanoTime
Date Sat, 08 Jul 2017 10:55:01 GMT
mingleizhang created FLINK-7139:
-----------------------------------

             Summary: Refine currentTimeMillis to nanoTime
                 Key: FLINK-7139
                 URL: https://issues.apache.org/jira/browse/FLINK-7139
             Project: Flink
          Issue Type: Improvement
          Components: Local Runtime
            Reporter: mingleizhang
            Assignee: mingleizhang
            Priority: Minor


When measuring intervals of time it's much better & safer to use {{System.nanoTime()}}
than {{System.currentTimeMillis()}}. The latter is affected by system clock drift and adjustments
(like by system time daemon) and the former is much more precise and stable.



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