Diving into Delta Lake: Unpacking the Transaction Log
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- Опубликовано: 10 июл 2024
- The transaction log is key to understanding Delta Lake because it is the common thread that runs through many of its most important features, including ACID transactions, scalable metadata handling, time travel, and more. In this session, we’ll explore what the Delta Lake transaction log is, how it works at the file level, and how it offers an elegant solution to the problem of multiple concurrent reads and writes.
In this tech talk you will learn about:
What is the Delta Lake Transaction Log
What is the transaction log used for?
How does the transaction log work?
Reviewing the Delta Lake transaction log at the file level
Dealing with multiple concurrent reads and writes
How the Delta Lake transaction log solves other use cases including Time Travel and Data Lineage and Debugging
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Hi sir, Amazing video... is there any possibility to compare file snapshot using different time stamps like compare today's data vs yesterday's data in data bricks? if possible can you please help me the details that how we exactly compared? THANKS.
Yes! Check out the Delta Lake cheat sheet for examples of how to do this under the "Time Travel" section: dbricks.co/cheatsheet
Please share the github link for this repository
Examples are not clear about Delta lake ACID properties.