Thursday, November 7, 2013

Pluggable metrics reporting in Cassandra 2.0.2

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Starting in 1.1, Apache Cassandra began exposing its already bountiful internal metrics using the popular Metrics library. The number of metrics has since been greatly expanded in 1.2 and beyond. There are now a variety of metrics for cache size, hit rate, client request latency, thread pool status, per column family statistics, and other operational measurements.

You could always write some custom java code to send these metrics onto a system like graphite or ganglia for data storage and graphing. Starting in 2.0.2 plugable Metrics reporter support is built in.

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