COMPRESSION IN CASSANDRA Operators can set up compression on a per-table basis with Cassandra. By compressing the SSTable in user-configurable compression chunk_length_in_kb, compression minimizes the amount of data on disk. The CPU cost of compressing data is only required when the SSTable is written since… Read More
INSTALLING CASSANDRA USING DEBIAN PACKAGES Debain Package: It is a collection of files which are used to implement a set of features or commands. You can only use the Debain packages on Ubuntu and other Debain-based distributions. STEP-1: Java setup Check the version of Java… Read More
CASSANDRA INSTALLATION USING TARBALL BINARY FILE ▪️ We have 3 methods of installing Cassandra. In that this one is the one of the methods. ▪️ This will be installing in the Linux terminal only. ▪️ Follow the steps accordingly to install Apache Cassandra in Linux… Read More
STRATEGIES OF COMPACTION ▪️ Unified Compaction Strategy (UCS) ▪️ Size-Tiered Compaction Strategy (STCS) ▪️ Leveled Compaction Strategy (LCS) ▪️ Time Window Compaction Strategy (TWCS) UNIFIED COMPACTION STRATEGY: For the majority of workloads, including mixed read-write, time-series, read-heavy, and write-heavy workloads, the UnifiedCompactionStrategy (UCS) is… Read More
USER DEFINED DATA TYPES IN CQL Handling several fields of connected data in a table is made easier with the use of a user-defined type. By representing the linked fields of information using a user-defined type rather than storing them in separate tables, applications that… Read More
DATA TYPES IN CQL The Cassandra Query Language, or CQL, is supported by Apache Cassandra. Cassandra Apache The categories of data known as data types specify the kinds of data that can be kept in a variable or object. Programmers instruct the compiler on how… Read More
CASSANDRA QUERY LANGUAGE WHAT IS CASSANDRA QUERY LANGUAGE? The computer languages used to create queries in databases and information systems are known as query languages. The main query language used to interact with the Apache Cassandra database is called Cassandra Query Language. A model resembling… Read More
CASSANDRA DATA MODELING TOOLS You can create queries and maintain your Cassandra schema with a number of available tools. KASHLEV DATA MODELER: The data modeling process outlined in this paper, which includes defining access patterns, conceptual, logical, and physical data modeling, and schema development, is automated… Read More
DEFINING THE SCHEMA Dividing the large partitions: The objective is to create tables that, in the event that a single partition is touched by a query, can yield the necessary data. Nonetheless, it is feasible to create broad partition-style tables that go close to Cassandra’s inherent… Read More
EVALUATING AND REFINING DATA MODELS /*After you’ve produced a physical model, you’ll want to assess and tweak table designs to assist ensure optimal performance.*/ PARTITION SIZE CALCULATON: The first thing you should look for is if your tables will have too large partitions, or, to… Read More
