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Mastering Apache Cassandra - Second Edition

You're reading from   Mastering Apache Cassandra - Second Edition Build, manage, and configure high-performing, reliable NoSQL database for your application with Cassandra

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Product type Paperback
Published in Mar 2015
Publisher Packt
ISBN-13 9781784392611
Length 350 pages
Edition 1st Edition
Languages
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Toc

Performance tuning

With stress tests completed, you might have identified the key areas for improvement. The broadest areas that you can categorize performance tuning into is the read and write performance area. Alternatively, there may be worries such as the I/O contention (compaction tuning) on servers. Apart from these, there may be several external factors to it, for example, slow disk, shared resources (such as shared CPU), and connectivity issues. We are not going to discuss external factors here. The assumption is that you will have sufficient resources allocated to the Cassandra servers. This section will discuss various tweaks to get Cassandra to start performing the best that it can within the given resources.

Write performance

Cassandra writes are sequential; all it needs to do is append it to the commit log and put it in memory. There is not much that can be done internally to Cassandra's setting to tweak writes. However, if disk writes are fast, and somehow I/O contentions...

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