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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 read path

The Cassandra read path is somewhat more complex. Similar to the write path, structures in-memory and on-disk structures are examined, and then reconciled:

Figure 2.4: An illustration of the Cassandra read path, illustrating how the different in-memory and on-disk structures work together to satisfy query operations

As shown in the preceding figure, a node handling a read operation will send that request on two different paths. One path checks the memtables (in RAM) for the requested data.

If row-caching is enabled (it is disabled by default), it is checked for the requested row, followed by the bloom filter. The bloom ...

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Publisher Resources

ISBN: 9781789131499Supplemental Content