Apache Cassandra

Website

cassandra.apache.org

$ Details

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Categories

#Databases #NoSQL Databases #Relational Databases #Big Data

MySQL

Website

mysql.com

$ Details

Categories

#Databases #Relational Databases #SQL Database #NoSQL Databases

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.

MySQL features and specs

• Reliability
  MySQL is known for its reliability and durability, making it a solid choice for many businesses' database management needs.
• Performance
  It offers robust performance, handling large databases and complex queries efficiently.
• Open Source
  MySQL is an open-source database, making it freely available under the GNU General Public License (GPL).
• Scalability
  MySQL supports large-scale applications and can handle high volumes of transactions.
• Community Support
  There is a large, active MySQL community that offers extensive resources, documentation, and support.
• Cross-Platform
  MySQL is compatible with various operating systems like Windows, Linux, and macOS.
• Integrations
  MySQL integrates well with numerous development frameworks, including LAMP (Linux, Apache, MySQL, PHP/Python/Perl).
• Security
  MySQL offers various security features, such as user account management, password policies, and encrypted connections.
• Cost
  The open-source nature of MySQL means that it can be very cost-effective, especially for small to medium-sized businesses.

Possible disadvantages of MySQL

• Support
  While community support is plentiful, official support from Oracle can be quite expensive.
• Complexity
  More advanced features and configurations can be complex and may require a steep learning curve for new users.
• Scalability Limitations
  While MySQL is scalable, very high-scale applications may run into limitations compared to some newer database technologies.
• Plug-in Storage Engines
  The use of plug-in storage engines like InnoDB or MyISAM can cause inconsistencies and complicate backups and recovery processes.
• ACID Compliance
  Although MySQL supports ACID compliance, certain configurations or storage engines may not fully adhere to ACID properties, affecting transaction reliability.
• Concurrent Writes
  Handling a high number of concurrent writes can be less efficient compared to some other database systems designed specifically for high concurrency.
• Feature Set
  Some advanced features found in other SQL databases (e.g., full-text indexing, rich analytics) may be less robust or absent.
• Vendor Dependency
  With Oracle now owning MySQL, there can be concerns about licensing changes or other forms of vendor lock-in.
• Replication Complexities
  Setting up replication and ensuring data consistency across distributed systems can be complex and error-prone.

Course Intro | DS101: Introduction to Apache Cassandra™

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