[jira] [Created] (YARN-11213) DecommissioningNodesWatcher#logDecommissioningNodesStatus calculate app elapsed time error

["liu bin (Jira)" <ji...@apache.org>]

liu bin created YARN-11213:
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             Summary: DecommissioningNodesWatcher#logDecommissioningNodesStatus calculate app elapsed time error
                 Key: YARN-11213
                 URL: https://issues.apache.org/jira/browse/YARN-11213
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: liu bin


There is a calculation in DecommissioningNodesWatcher#logDecommissioningNodesStatus to calculate app elapsed time:
{code:java}
(mclock.getTime() - rmApp.getStartTime()) / 1000{code}
But mclock.getTime() is get from System.nanoTime() / NANOSECONDS_PER_MILLISECOND, rmApp.getStartTime() is get from System.currentTimeMillis(), they cannot be compared.

This calculation should be:
{code:java}
(System.currentTimeMillis() - rmApp.getStartTime()) / 1000{code}



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