Apache Cassandra

Website

cassandra.apache.org

Pricing URL

-

Categories

#Databases #NoSQL Databases #Relational Databases #Big Data

ElephantSQL

Website

elephantsql.com

Pricing URL

Official ElephantSQL Pricing

Categories

#Databases #Relational Databases #NoSQL Databases #SQL Database

Apache Cassandra features and specs

• Scalability
  Apache Cassandra is designed for linear scalability and can handle large volumes of data across many commodity servers without a single point of failure.
• High Availability
  Cassandra ensures high availability by replicating data across multiple nodes. Even if some nodes fail, the system remains operational.
• Performance
  It provides fast writes and reads by using a peer-to-peer architecture, making it highly suitable for applications requiring quick data access.
• Flexible Data Model
  Cassandra supports a flexible schema, allowing users to add new columns to a table at any time, making it adaptable for various use cases.
• Geographical Distribution
  Data can be distributed across multiple data centers, ensuring low-latency access for geographically distributed users.
• No Single Point of Failure
  Its decentralized nature ensures there is no single point of failure, which enhances resilience and fault-tolerance.

Possible disadvantages of Apache Cassandra

• Complexity
  Managing and configuring Cassandra can be complex, requiring specialized knowledge and skills for optimal performance.
• Eventual Consistency
  Cassandra follows an eventual consistency model, meaning that there might be a delay before all nodes have the latest data, which may not be suitable for all use cases.
• Write-heavy Operations
  Although Cassandra handles writes efficiently, write-heavy workloads can lead to compaction issues and increased read latency.
• Limited Query Capabilities
  Cassandra's query capabilities are relatively limited compared to traditional RDBMS, lacking support for complex joins and aggregations.
• Maintenance Overhead
  Regular maintenance tasks such as node repair and compaction are necessary to ensure optimal performance, adding to the administrative overhead.
• Tooling and Ecosystem
  While the ecosystem for Cassandra is growing, it is still not as extensive or mature as those for some other database technologies.

ElephantSQL features and specs

• Fully Managed Service
  ElephantSQL offers a fully managed PostgreSQL service, which means users do not need to worry about database maintenance, backups, or updates. This allows developers to focus on building applications rather than database administration.
• Scalability
  ElephantSQL provides various plans that cater to different needs, from small projects to large enterprise applications. As your application grows, you can easily scale your database to match increased demand.
• High Availability
  ElephantSQL offers high availability features, including automated backups, failovers, and replication, ensuring minimal downtime and data loss in case of failures.
• Easy Setup
  Setting up a PostgreSQL instance with ElephantSQL is straightforward and quick, enabling developers to get started with minimal effort.
• Integration with Popular Cloud Platforms
  ElephantSQL can be integrated with major cloud providers, such as AWS, Google Cloud, and Heroku, providing flexibility and ease of use for cloud-based applications.

Possible disadvantages of ElephantSQL

• Cost
  ElephantSQL can become expensive as you move to higher-tier plans, especially for startups or small businesses with limited budgets.
• Limited Customization
  As a managed service, ElephantSQL may not offer the same level of customization and control as a self-hosted PostgreSQL instance, which could be a limitation for some advanced use cases.
• Shared Resources on Lower Plans
  Lower-tier plans may involve shared resources, which could lead to performance bottlenecks if other users on the shared infrastructure are consuming significant resources.
• Dependency on a Third-party Service
  Relying on a third-party service like ElephantSQL means your application's uptime is dependent on their reliability and service availability.
• Potential Latency
  Depending on the geographic location of the ElephantSQL servers and your application servers, there may be some latency, which could impact the performance of latency-sensitive applications.

Course Intro | DS101: Introduction to Apache Cassandra™

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