VenuReddy2103 commented on a change in pull request #3841: URL: https://github.com/apache/carbondata/pull/3841#discussion_r458011089
########## File path: integration/spark/src/main/scala/org/apache/carbondata/view/MVManagerInSpark.scala ########## @@ -48,17 +48,14 @@ class MVManagerInSpark(session: SparkSession) extends MVManager { object MVManagerInSpark { - private val MANAGER_MAP_BY_SESSION = - new util.HashMap[SparkSession, MVManagerInSpark]() + private var viewManager: MVManagerInSpark = null + // returns single MVManager instance for all the current sessions. def get(session: SparkSession): MVManagerInSpark = { - var viewManager = MANAGER_MAP_BY_SESSION.get(session) if (viewManager == null) { - MANAGER_MAP_BY_SESSION.synchronized { - viewManager = MANAGER_MAP_BY_SESSION.get(session) + this.synchronized { if (viewManager == null) { viewManager = new MVManagerInSpark(session) - MANAGER_MAP_BY_SESSION.put(session, viewManager) session.sparkContext.addSparkListener(new SparkListener { Review comment: If we have multiple sessions, only one session(i.e., the one which created MVManagerInSpark instance) is added to listeners. Others are not added. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org