Imran Rashid created SPARK-6782:
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Summary: add sbt-revolver plugin to sbt build
Key: SPARK-6782
URL: https://issues.apache.org/jira/browse/SPARK-6782
Project: Spark
Issue Type: Improvement
Components: Build
Reporter: Imran Rashid
Assignee: Imran Rashid
Priority: Minor
[sbt-revolver|https://github.com/spray/sbt-revolver] is a very useful sbt
plugin for development. You can start & stop long-running processes without
being forced to kill the entire sbt session. This can save a lot of time in
the development cycle.
With sbt-revolver, you run {{re-start}} to start your app in a forked jvm. It
immediately gives you the sbt shell back, so you can continue to code. When
you want to reload your app with whatever changes you make, you just run
{{re-start}} again -- it will kill the forked jvm, recompile your code, and
start the process again. (Or you can run {{re-stop}} at any time to kill the
forked jvm.)
I used this a ton while working on adding json support to the UI in
https://issues.apache.org/jira/browse/SPARK-3454 (as the history server never
stops, without this plugin I had to kill sbt between every time I'd run it
manually to play with the behavior.) I don't write a lot of spark-streaming
jobs, but I've also used this plugin in that case, since again my streaming
jobs never terminate -- I imagine it would be really useful to anybody that is
modifying streaming and wants to test out running some jobs.
I'll post a PR.
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