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Mastering Apache Cassandra 3.x - Third Edition
book

Mastering Apache Cassandra 3.x - Third Edition

by Aaron Ploetz, Tejaswi Malepati
October 2018
Beginner to intermediate content levelBeginner to intermediate
348 pages
10h
English
Packt Publishing
Content preview from Mastering Apache Cassandra 3.x - Third Edition

cassandra-env.sh

The cassandra-env.sh file is where much of the JVM configuration used to happen, before it was moved to the jvm.options file (to be explained in a following section). Currently, it is invoked when the node is started to ensure that Cassandra has the environment variables it needs.

Upon starting, it polls available system resources, and uses that data to calculate an acceptable heap size. It also applies some additional checks for specific versions of the JVM. Here are some additional, common settings that can be applied in the cassandra-env.sh file:

  • JMX_PORT: This specifies which port should be used for Java Management Extensions (JMX) communications. It is passed to the JVM as -Dcassandra.jmx.remote.port.
  • LOCAL_JMX: This ...
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Publisher Resources

ISBN: 9781789131499Supplemental Content