DataStax Academy FAQ

DataStax Academy migrated to a new learning management system (LMS) in July 2020. We are also moving to a new Cassandra Certification process so there are changes to exam bookings, voucher system and issuing of certificates.

Check out the Academy FAQ pages for answers to your questions:


question

gmldba_107428 avatar image
gmldba_107428 asked ·

Are the statistics from org.apache.cassandra.metrics cumulative?

Are metrics from

org.apache.cassandra.metrics

cumulative? If I had 3k timeouts on a Friday, and now things are back to normal, will I see a decrease in timeouts?

monitoringjmx
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1 Answer

Erick Ramirez avatar image
Erick Ramirez answered ·

For the most part, the metrics data is cumulative for the life of the JVM.

In relation to your question on timeouts, you won't see the statistics increase when "things are back to normal" but they will not decrease. The counters get reset to zero when Cassandra is restarted. Cheers!

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