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Cassandra Data Modeling and Analysis by C.Y. Kan

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Monitoring

As the application system goes live, we need to monitor its health day-by-day. Cassandra provides a number of tools for this purpose. We will introduce some of them with pragmatic recommendations. It is remarkable that each operating system also provides a bunch of tools and utilities for monitoring, for example, top, df, du on Linux and Task Manager on Windows. However, they are beyond the scope of this book.

Nodetool

The nodetool utility should not be new to us. It is a command-line interface used to monitor Cassandra and perform routine database operations. It includes the most important metrics for tables, server, and compaction statistics, and other useful commands for administration.

Here are the most commonly used nodetool options: ...

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