How to reduce the amount of ram in datastax?

After you install datastax cassandra
ate almost all of the operatives on the computer.
how to reduce its appetite?
June 10th 19 at 16:02
1 answer
June 10th 19 at 16:04
configure cassandra_env.sh
setting the heap,
the fact is that in this file, you set the custom settings to run on the JVM, namely the size of the heap, and by default there, like the 8 gig

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