Disabling compaction throttling

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After running the nodetool repair command, you must disable compaction throttling, so that tombstones are purged regularly and thereby do not hamper system performance.

About this task

Throttling compaction throughput slows down compactions markedly, which may cause tombstones to hamper system performance. Therefore, after you complete nodetool repair, you must disable compaction throttling.

To disable compaction throttling:

Procedure

  1. Log in to the server where a Cassandra node is installed.
  2. Go to <install_dir>/apache-cassandra/bin directory.
  3. Type ./nodetool setcompactionthroughput 0.
    Tip: To run nodetool, JAVA_HOME must be set to the location of IBM JDK 8.

    Setting the value to 0, disables compaction throttling.