How to setting JVM (MAX_HEAP_SIZE) for Cassandra

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Hi All,

We check Cassandra automatically calculates the maximum heap size (MAX_HEAP_SIZE) based on formula. If we want to adjust the maximum heap size (MAX_HEAP_SIZE) for Cassandra, do you know where to change the setting? and what are the best practices for JVM settings?

Thank you.

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Hi @OdiS9903 ,

This document can help you to adjust the heap size:

If you are using embedded Cassandra, you can override heap size through Pega providing following prconfig, for instance:

dsm/services/replace=unreachable dnode/cassandra_heap_new_size=400M dnode/cassandra_max_heap_size=2G