[SPARK-11244] sparkR.stop doesn't clean up .sparkRSQLsc in environment

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.1
• Fix Version/s: 1.5.2, 1.6.0
• Component/s: SparkR
• Assignee: Sen Fang
• Reporter: Sen Fang
• Created: 21/Oct/15 19:42
• Updated: 22/Oct/15 16:35
• Resolved: 22/Oct/15 16:34

Description

Currently sparkR.stop removes relevant variables from .sparkREnv for SparkContext and backend. However it doesn't clean up .sparkRSQLsc and .sparkRHivesc.

It results

sc <- sparkR.init("local")
sqlContext <- sparkRSQL.init(sc)
sparkR.stop()
sc <- sparkR.init("local")
sqlContext <- sparkRSQL.init(sc)
sqlContext

producing

 sqlContext
Error in callJMethod(x, "getClass") : 
  Invalid jobj 1. If SparkR was restarted, Spark operations need to be re-executed.

Issue Links

• links to: [Github] Pull Request #9205 (saurfang)