Ryan Williams created SPARK-5106:
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Summary: Make Web UI automatically refresh/update displayed data
Key: SPARK-5106
URL: https://issues.apache.org/jira/browse/SPARK-5106
Project: Spark
Issue Type: Improvement
Components: Web UI
Affects Versions: 1.2.0
Reporter: Ryan Williams
My (and presumably others') experience monitoring Spark jobs currently consists
of repeatedly ⌘R'ing various pages of the web UI to view ever-fresher data
about how many tasks have succeeded / failed, how much spillage is happening,
etc., which is tedious.
Particularly unfortunate is the "one refresh over the line" problem where, just
as things are getting interesting, the job itself fails or finishes, and after
refreshing the page all data disappears.
It would be good if the web UI updated the data it was displaying automatically.
One hacky way to achieve this would be to have it automatically refresh the
page, though this still risks losing everything when the job finishes.
A better long-term solution would be to have the UI poll for (or have pushed to
it) updates to the data it is displaying.
Either way, some way to toggle this functionality on or off is probably
warranted as well.
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