[SPARK-27394][WEBUI] Flush LiveEntity if necessary when receiving SparkListenerExecutorMetricsUpdate (backport 2.4)#24328

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zsxwing wants to merge 3 commits intoapache:branch-2.4from

zsxwing:SPARK-27394-2.4

Commits on Apr 9, 2019

[SPARK-27394][WEBUI] Flush LiveEntity if necessary when receiving SparkListenerExecutorMetricsUpdate
zsxwing
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Commits on Apr 10, 2019

Merge remote-tracking branch 'origin/branch-2.4' into SPARK-27394-2.4
zsxwing
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use the same test codes since 2.4 has the heartbeat interval fix
zsxwing
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