Github user Leemoonsoo commented on the pull request: https://github.com/apache/incubator-zeppelin/pull/703#issuecomment-188103224 @khalidhuseynov Thanks for the opinion. Both UX and Performance point of view, which make sense to be default will be totally depends on the interpreters. For example, much higher resource will be required to use "separate interpreter per note" for SparkInterpreter, while it creates separate scala compiler instance per note. But for markdown interpreter or shell interpreter, resource requirement will be pretty much the same. And UX side, i was more focused on the providing the same default behavior to the previous version.
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