AWS Glue

Website

aws.amazon.com

$ Details

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Categories

#Data Integration #ETL #Data Workflow #Data Pipelines

SQLite

Website

sqlite.org

$ Details

Categories

#Databases #Relational Databases #NoSQL Databases #Tool

AWS Glue features and specs

• Fully Managed
  AWS Glue is a fully managed ETL (Extract, Transform, Load) service, which means you don't need to manage any underlying infrastructure. This reduces the operational overhead and allows you to focus on the data processing tasks.
• Scalability
  AWS Glue can automatically scale resources up or down based on the demand and workload, ensuring optimal performance without manual intervention.
• Serverless
  Being serverless, there are no servers to manage or maintain. You only pay for the resources that you consume, which can result in significant cost savings.
• Integrated Data Catalog
  AWS Glue comes with a built-in data catalog that helps you organize and discover your data. It automatically indexes and maintains metadata about your data, making it easier to manage.
• Support for Multiple Data Sources
  AWS Glue supports a variety of data sources including Amazon S3, RDS, Redshift, and many external databases, providing flexibility in your ETL processes.
• Developer Tools
  AWS Glue provides developer endpoints for custom ETL logic, and integrates with AWS SDKs, Boto3, and the AWS CLI, allowing for a flexible development experience.

Possible disadvantages of AWS Glue

• Complex Pricing
  The pricing model for AWS Glue can be complicated, involving multiple components such as Data Processing Units (DPUs), data catalog storage, and crawler costs, which may make it hard to estimate costs.
• Learning Curve
  There is a significant learning curve for developers who are new to AWS Glue, especially when it comes to understanding its various components and configurations.
• Performance for Small Datasets
  AWS Glue is optimized for large-scale data processing, which may result in suboptimal performance and higher costs for smaller datasets.
• Vendor Lock-in
  Using AWS Glue ties you to the AWS ecosystem, making it harder to switch to another cloud provider without significant rework of your ETL pipelines and data catalog.
• Limited Debugging Tools
  The debugging and troubleshooting tools for AWS Glue are somewhat limited compared to other mature ETL tools, which may complicate the development and maintenance of ETL jobs.
• Job Run Delays
  There can be delays in job startup times, which can be problematic for certain time-sensitive applications requiring near real-time data processing.

SQLite features and specs

• Zero Configuration
  SQLite does not require any server setup or configuration, allowing for easy integration and deployment in applications.
• Lightweight
  It is extremely lightweight, with a small footprint, making it ideal for embedded systems and mobile applications.
• Self-Contained
  SQLite is self-contained, meaning it has minimal external dependencies, which simplifies its distribution and usage.
• File-Based Storage
  Data is stored in a single file, which makes it easy to manage and transfer databases as simple files.
• ACID Compliance
  SQLite supports Atomicity, Consistency, Isolation, and Durability (ACID) properties, ensuring reliable transactions.
• Cross-Platform
  SQLite is available on numerous platforms, including Windows, MacOS, Linux, iOS, and Android, providing a broad compatibility range.
• Public Domain
  SQLite operates under the public domain, allowing for unrestricted use in commercial and non-commercial applications.

Possible disadvantages of SQLite

• Limited Scalability
  SQLite is not designed to handle high levels of concurrency and large-scale databases, making it less suitable for large, high-traffic applications.
• Write Performance
  Write operations can be slower compared to server-based databases, especially under heavy write loads.
• Lack of Certain Features
  SQLite lacks some advanced features offered by other RDBMS like stored procedures, user-defined functions, and full-text search indexing.
• Security
  As SQLite is file-based, it might lack some of the security features present in server-based databases, such as sophisticated access control.
• Concurrency
  SQLite uses a locking mechanism to control access to the database, which can lead to contention and performance bottlenecks in highly concurrent environments.
• Backup and Restore
  While it's straightforward to copy SQLite database files, it lacks the advanced backup and restore features found in more complex RDBMS.

Build ETL Processes for Data Lakes with AWS Glue - AWS Online Tech Talks

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