igor mazor created SPARK-21252:
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Summary: The duration times showed by spark web UI are inaccurate
Key: SPARK-21252
URL: https://issues.apache.org/jira/browse/SPARK-21252
Project: Spark
Issue Type: Bug
Components: Web UI
Affects Versions: 2.1.1, 2.1.0, 2.0.1, 2.0.0
Reporter: igor mazor
The duration times showed by spark UI are inaccurate and seems to be rounded.
For example when a job had 2 stages, first stage executed in 47 ms and second
stage in 3 seconds, the total execution time showed by the UI is 4 seconds.
Another example, first stage was executed in 20 ms and second stage in 4
seconds, the total execution time showed by the UI would be in that case also 4
seconds.
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