Marcelo Vanzin created SPARK-2169:
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Summary: SparkUI.setAppName() has no effect
Key: SPARK-2169
URL: https://issues.apache.org/jira/browse/SPARK-2169
Project: Spark
Issue Type: Bug
Components: Web UI
Affects Versions: 1.0.0
Reporter: Marcelo Vanzin
{{SparkUI.setAppName()}} does not do anything useful.
It overwrites the instance's {{appName}} fields, but all places where that
field is used have already read that value into their own copies by the time
that happens.
e.g.
StagePage.scala copies {{parent.appName}} into its own private {{appName}} in
the constructor, which is called as part of SparkUI's constructor. So when you
call {{SparkUI.setAppName}} it does not overwrite StagePage's copy, and so the
UI still shows the old value.
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