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ferd.ca | ||
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martin.kleppmann.com
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davquar.it
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| | | | | In this introductory post on distributed systems we'll see some basic concepts such as: local and global states, consistent and inconsistent cuts, vector clocks, Chandy-Lamport's snapshot protocol. | |
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henrikwarne.com
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| | | | | What a great book Designing Data-Intensive Applications is! It covers databases and distributed systems in clear language, great detail and without any fluff. I particularly like that the author Martin Kleppmann knows the theory very well, but also seems to have a lot of practical experience of the types of systems he describes. There is... | |
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johnjr.dev
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| | | When we study transactions in relational databases, one of the first things we learn are the guarantees that a transaction must provide. ACID(Atomicity, Consistency, Isolation, Durability) are the properties that we desire. Here, I will discuss the Isolation level in more detail and show that atomicity alone is not enough when handling concurrency. One classic example of the importance of atomicity is moving money between accounts. So, imagine that we have two accounts and we would like to transfer the total amount from one account to another one. In a relational database, what we need to do is three steps: | ||
