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What is the use of Cassandra database ?

Editor — Tue, 13 Jul 2021 05:36:30 +0000

Apache Cassandra is a high-performance provides database to manage large number of data among many commodity servers and then it is highly scalable.
It is a type of NoSQL database.
Apache Cassandra can be used for different applications.

In activity-tracking and monitoring applications:

Numerous entertainment and media organisations use Cassandra to observe user activity based on movies, music, albums, artists or other parameters.

In heavy write systems or in time-series-based applications:

Cassandra is best for heavy write systems .For example, data is logged for each request based on hits in web analytics, by type of browser, traffic sources, position, character, technology, tools, etc.

In social media analytics:

Cassandra is used by many social media providers to recognize the data and gives recommendations to their users.

In product catalogues and retail applications:

A very popular use case of Cassandra is to show fast product catalog inputs and lookup, and in retail applications.

Messaging:

Cassandra serves as the database backbone for countless mobile phone and message providers applications.

Apache Cassandra is a high-performance provides database to manage large number of data among many commodity servers and then it is highly scalable.

Editor — Tue, 13 Jul 2021 05:21:20 +0000

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In contrast, using the REST API allows the Java piece to be changed or replaced without having to re-create your input process.
Another advantage to using an API for writing is that you can queue input requests if there is a surge in usage or incoming requests to handle them as quickly as possible without message loss due to maximum connection limits or other networking issues.
NoSQL stores are now an mandatory part of any framework, the SMACK stack (Spark, Mesos, Akka, Cassandra and Kafka) is becoming well popular.
Its demonstrated scalability and its high write throughput create it the perfect partner to manage the flood of time series, IOT and industrial scale streams or financial data.
This made Apache Cassandra an clear choice as a Connect API in Kafka sink.

Editor — Tue, 13 Jul 2021 04:40:35 +0000

Apache Cassandra is a simple and open-source provides NoSQL DBMS build to handle huge volume of data against more fabric servers.It providing high availability with no single point of failure.
The performance of Cassandra place a high value. In 2012, University of Toronto researchers studying NoSQL systems resulted that “Scalability defined there is a clear winner throughout our experiments.Cassandra achieves the largest throughput for the large number of nodes in all experiments” although “it determine at the price of high write and read latencies.”

Cluster contain every node has the same role.
There is no single point of failure.
To provides data across the cluster so every node have various data, but there is no master as every node can service if any request.

Replication strategies are configurable.
Cassandra is built as a distributed system, for deployment of maximum numbers of nodes across many data centers.
Key features of Cassandra’s distributed architecture are specifically change for multiple-data center deployment, for redundancy, for fail over and disaster recovery.

As new machines are added read and write throughput both increase linearly, with the achieve of no halt or interrupt to applications.

Data is automatically replicated to many nodes for fault-tolerance. Replication across multiple data centers is maintained. Failed nodes can be changed with no downtime.

Writes and reads gives a adjustable level of consistency, all the way from “writes never fail” to “block for all replicas to be readable”, with the quorum level in the middle.