[ https://issues.apache.org/jira/browse/SPARK-18991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Shixiong Zhu updated SPARK-18991: --------------------------------- Description: Right now `ContextCleaner.referenceBuffer` is ConcurrentLinkedQueue and the time complexity of the `remove` action is O ( n ). It can be changed to use ConcurrentHashMap whose `remove` is O(1). (was: Right now `ContextCleaner.referenceBuffer` is ConcurrentLinkedQueue and the time complexity of the `remove` action is O(n). It can be changed to use ConcurrentHashMap whose `remove` is O(1).) > Change ContextCleaner.referenceBuffer to ConcurrentHashMap to make it faster > ---------------------------------------------------------------------------- > > Key: SPARK-18991 > URL: https://issues.apache.org/jira/browse/SPARK-18991 > Project: Spark > Issue Type: Improvement > Components: Spark Core > Reporter: Shixiong Zhu > Assignee: Shixiong Zhu > Fix For: 2.1.1, 2.2.0 > > > Right now `ContextCleaner.referenceBuffer` is ConcurrentLinkedQueue and the > time complexity of the `remove` action is O ( n ). It can be changed to use > ConcurrentHashMap whose `remove` is O(1). -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org