[ https://issues.apache.org/jira/browse/SPARK-27726?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-27726: ------------------------------------ Assignee: (was: Apache Spark) > Performance of InMemoryStore suffers under load > ----------------------------------------------- > > Key: SPARK-27726 > URL: https://issues.apache.org/jira/browse/SPARK-27726 > Project: Spark > Issue Type: Umbrella > Components: Spark Core > Affects Versions: 2.3.3 > Reporter: David C Navas > Priority: Major > Attachments: GCRateIssues.pdf, PerformanceBeforeAndAfter.pdf > > > When our Spark system has been under load for an extended period of time, GC > remains highly active and the jobs page becomes unresponsive even when load > eases. Please see the attached GCRateIssues for more details regarding the > problem definition. > We found a number of separate issues which are detailed in the subtasks. I > anticipate committing a single PR for all subtasks whose commits roughly > align with the descriptions in the subtasks. > The performance of the code is measured before and after the change and is > attached in the document PerformanceBeforeAndAfter. tl;dr in our use case, > we saw about five (computed) orders of magnitude improvement. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org