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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

Cassandra's write path

Understanding how Cassandra handles writes is key to knowing how to build applications on top of it. The following is a high-level diagram of how the Cassandra write path works:

Figure 2.3: An illustration of the Cassandra write path, showing how writes are applied both to in-memory and on-disk structures

When a write operation reaches a node, it is persisted in two places. There is an in-memory structure known as a memtable, which gets the write. Additionally, the new data is written to the commit log, which is on-disk.

The commit log is Cassandra's way of enforcing durability in the case of a plug-out-of-the-wall
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Publisher Resources

ISBN: 9781789131499Supplemental Content