Uploaded image for project: 'Apache Cassandra'
  1. Apache Cassandra
  2. CASSANDRA-8150

Revaluate Default JVM tuning parameters

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Open
    • Normal
    • Resolution: Unresolved
    • None
    • Local/Config

    Description

      It's been found that the old twitter recommendations of 100m per core up to 800m is harmful and should no longer be used.

      Instead the formula used should be 1/3 or 1/4 max heap with a max of 2G. 1/3 or 1/4 is debatable and I'm open to suggestions. If I were to hazard a guess 1/3 is probably better for releases greater than 2.1.

      Attachments

        1. upload.png
          144 kB
          Matt Stump

        Activity

          People

            Unassigned Unassigned
            mstump Matt Stump
            Votes:
            12 Vote for this issue
            Watchers:
            51 Start watching this issue

            Dates

              Created:
              Updated: