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  1. Cassandra
  2. CASSANDRA-8150

Revaluate Default JVM tuning parameters

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Normal
    • Resolution: Unresolved
    • Fix Version/s: None
    • Component/s: Local/Config
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      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.

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