Apache Cassandra

Website

cassandra.apache.org

Categories

#Databases #NoSQL Databases #Relational Databases #Big Data

Notes Taking

Website

educationcorner.com

Categories

#Office & Productivity #Note Taking #Task Management #File Management

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.

Notes Taking features and specs

• Improved Focus
  Taking notes helps students concentrate during lectures by keeping them engaged with the material and minimizing distractions.
• Enhanced Retention
  By actively summarizing and processing information, note-taking can lead to better retention and understanding of the subject matter.
• Resource for Review
  Notes provide a personalized resource that can be reviewed and used as a study aid when preparing for exams or completing assignments.
• Organized Information
  Notes allow students to organize information in a structured manner, making it easier to follow complex topics or lectures.
• Development of Critical Thinking
  Taking notes involves identifying key points and relationships, which fosters critical thinking and analytical skills.

Possible disadvantages of Notes Taking

• Divided Attention
  Focusing on taking notes might cause students to split their attention, potentially missing important aspects of the lecture.
• Incomplete Notes
  Students may not be able to keep up with the pace of the lecture, leading to incomplete notes that lack vital information.
• Over-reliance on Notes
  Students might depend too heavily on their notes and not engage fully with more comprehensive study materials.
• Physical Strain
  Extended periods of writing or typing can lead to physical discomfort or strain on the hands and wrists.
• Effect on Listening
  The act of writing can interfere with listening comprehension, especially if the note-taker focuses more on writing and less on understanding.

Course Intro | DS101: Introduction to Apache Cassandra™

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