What is Cassandra DB used for?
One open source application, Apache Cassandra, enables organisations to process large volumes of fast moving data in a reliable and scalable way. That’s why companies like Facebook, Instagram and Netflix use Apache Cassandra for mission-critical features.
How does Cassandra DB work?
Cassandra works with peer to peer architecture, with each node connected to all other nodes. Each Cassandra node performs all database operations and can serve client requests without the need for a master node. Gossip: Gossip is the protocol used by Cassandra nodes for peer-to-peer communication.
Is Cassandra a SQL database?
CQL (Cassandra Query Language): A SQL-like language that makes moving from a relational database very easy. Transaction support: Cassandra supports ACID properties and CAP Theorem like Atomicity, Consistency, Isolation, and Durability. Flexible and Dynamic Data Model: Apache works on commodity hardware.
Which type of data storage system Cassandra is?
NoSQL database management system
Cassandra is a free and open-source, distributed, wide-column store, NoSQL database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure.
Can Cassandra be used for analytics?
In combination with Apache Spark and the like, Cassandra can be a strong ‘backbone’ for real-time analytics. And it scales linearly. So, if you anticipate growth of your real-time data, Cassandra definitely has the utmost advantage here.
What is the advantage of Cassandra?
Some other benefits of Cassandra include: Flexible data storage. Cassandra can handle structured, semi-structured, and unstructured data, giving users flexibility with data storage. Flexible data distribution.
How does Cassandra distribute data?
At a 10000 foot level Cassandra stores data by dividing data evenly around its cluster of nodes. Each node is responsible for part of the data. The act of distributing data across nodes is referred to as data partitioning.
What is simple strategy in Cassandra?
The SimpleStrategy is a basic replication strategy. It’s used when using a single datacenter. This method is rack unaware. It places replicas on subsequent nodes in a clockwise order.
Can Cassandra handle unstructured data?
Apache Cassandra is a massively scalable, column family NoSQL database solution that provides users the ability to store large amounts of structured and unstructured data. In the big data landscape, it fits into the structured storage category and is simply an alternative or additional data store option.
What is Cassandra not good for?
Cassandra has limitations when it comes to: ACID transactions. If you expect Cassandra to build a system supporting ACID properties (Atomicity, Consistency, Isolation and Durability), unfortunately, it won’t work.
What is Cassandra and its features?
Apache Cassandra is an open source, user-available, distributed, NoSQL DBMS which is designed to handle large amounts of data across many servers. It provides zero point of failure. Cassandra offers massive support for clusters spanning multiple datacentres.
How does Cassandra replicate data?
Cassandra stores data replicas on multiple nodes to ensure reliability and fault tolerance. The replication strategy for each Edge keyspace determines the nodes where replicas are placed. The total number of replicas for a keyspace across a Cassandra cluster is referred to as the keyspace’s replication factor.
What is the Cassandra database used for?
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.
What is the history of the Cassandra database?
Cassandra was first developed at Facebook for inbox search.
What type of database is Cassandra?
Apache Cassandra is a highly scalable, high-performance distributed database designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure. It is a type of NoSQL database.
Is Cassandra a NoSQL database?
Apache Cassandra is a NoSQL database ideal for high-speed, online transactional data, while Hadoop is a big data analytics system that focuses on data warehousing and data lake use cases.