Uploaded image for project: 'Apache Cassandra'
  1. Apache Cassandra
  2. CASSANDRA-6386

FD mean calculation performance improvement

Agile BoardAttach filesAttach ScreenshotBulk Copy AttachmentsBulk Move AttachmentsVotersWatch issueWatchersCreate sub-taskConvert to sub-taskMoveLinkCloneLabelsUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Resolved
    • Low
    • Resolution: Fixed
    • 1.2.13, 2.0.3
    • None
    • None

    Description

      CPU profiling in #6127 found the o.a.c.gms.arrrivalWindow.mean() calculation taking the most cpu time during steady state gossip.

      cpu usage can be a limiting factor when starting > 500 nodes concurrently, which customers sometimes do (though we suggest starting nodes 2 or 3 minutes apart).

      Attachments

        Issue Links

        blocks

        Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-6127 vnodes don't scale to hundreds of nodes

        • Normal -
        • Resolved

        Activity
          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            jbellis Jonathan Ellis Assign to me
            qconner Quentin Conner
            Jonathan Ellis
            Brandon Williams
            Votes:
            0 Vote for this issue
            Watchers:
            1 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment