ShreelekhyaG commented on a change in pull request #3841:
URL: https://github.com/apache/carbondata/pull/3841#discussion_r458871503
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File path:
integration/spark/src/main/scala/org/apache/carbondata/view/MVManagerInSpark.scala
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@@ -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:
This is not needed for MV, removing it.
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