[LIVY-397] Support multiple languages in one session

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.4.0
• Fix Version/s: 0.5.0
• Component/s: REPL
• Assignee: Saisai Shao
• Reporter: Saisai Shao
• Created: 31/Aug/17 08:53
• Updated: 27/Nov/17 08:27
• Resolved: 27/Nov/17 08:27

Description

This JIRA aims to support multiple languages in one session.

Currently in the Livy one session can only have one interpreter, which means user can only choose one language in one session, this limits the use case of using different languages under one Spark application. So here propose to support this feature.

Sub-Tasks

• Share SparkContext across languages: Resolved
• Change docs to describe how to use shared language session: Resolved
• Enable real test for PySpark and SparkR interpreters: Resolved