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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

Hotspots

Now for the following screenshot; this Cassandra cluster is running in the cloud and balanced across three AZs with replication three factor, instance types, architectures and even the config parameters are also consistent across the cluster. What are the first guesses of the issue? Is it that a few nodes are being hit hard? Different versions of Cassandra? Bad calculations in the metric system?

Figure 7.37: A few nodes are having higher reads than the rest

Here, the majority of inconsistencies on Cassandra's server side are eliminated, as this clearly shows a few nodes have 500-1,000 reads per second more than the rest, and a higher ...

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Publisher Resources

ISBN: 9781789131499Supplemental Content