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Explore Distributed Transaction بالعربي With Mostafa Mansour & Ahmed Elemam - Tech Podcast بالعربي with 5,779 views, 217 likes, and 9 comments. Experience the impact of this video content that has captured audience attention.

Podcast with Mostafa Mansour Tech Podcast بالعربي Slides https://docs.google.com/presentation/d/1dAfVAf9xra2Zrur7_Pmat780idGFL8je_b-GIPwt1Uw/edit?pli=1#slide=id.g2526304e150_0_17 Agenda - What are distributed transactions and why do we need them? - Query vs Transaction - ACID - Isolation and Definition of serializable and motivation (double booking) - Dirty Reads : Read while rolling back of a commit - Non-repeatable reads: Read while updating - Phantom Reads: Read after inserting. - Lost Updates: Read after deleting - Read Uncommitted, read committed, repeatable read (committed updates at the beginning of transaction), Serializable. - Performance goes down with every Isolation Serialization Check - Read-Write Conflict, Write-Write Conflict, Phantom read. - Durability - Audit transactions and Gitlab incident and how they rebuilt it - Optimistic and Pessimistic Locking - Exclusive lock vs shared lock & Pros and Cons of each Concurrency control (i) enforces isolation among transactions. (ii) preserve database consistency through consistency preserving execution of transactions. (iii) resolve read-write and write-read conflicts. Two Phase Locking and deadlock prevention (i) Growing Phase (ii) Shrinking Phase - Time Stamp - System Clock - Logical Counter (Though we’ll have to reset the counter from time to time to avoid overflow) - Multi version locking Patterns for Distributed Transactions (i) Two Phase Commit (ii) Saga (iii) Orchestrator (iiii) Choreography Resources Lecture 12: Distributed Transactions https://hazelcast.com/glossary/distributed-transaction/ https://developers.redhat.com/blog/2018/10/01/patterns-for-distributed-transactions-within-a-microservices-architecture What are database transactions? (educative.io) https://medium.com/@dongfuye/the-seven-most-classic-solutions-for-distributed-transaction-management-3f915f331e15 https://www.cockroachlabs.com/blog/distributed-transactions-what-why-and-how-to-build-a-distributed-transactional-application/ https://www.youtube.com/watch?v=pomxJOFVcQs https://learn.microsoft.com/en-us/sql/odbc/reference/develop-app/transaction-isolation-levels?view=sql-server-ver16 https://www.cockroachlabs.com/docs/stable/demo-serializable.html#:~:text=SERIALIZABLE%20isolation%20guarantees%20that%20even,allowed%20by%20weaker%20isolation%20levels. https://www.youtube.com/watch?v=vGOEO6mO674 https://www.youtube.com/watch?v=eltn4x788UM https://www.youtube.com/watch?v=YFXABIEXO04 https://www.geeksforgeeks.org/concurrency-control-techniques/ https://www.tutorialspoint.com/explain-about-two-phase-locking-2pl-protocol-dbms https://www.geeksforgeeks.org/concurrency-control-techniques/ https://www.geeksforgeeks.org/lock-based-concurrency-control-protocol-in-dbms/ What is the two-phase commit protocol? (educative.io) https://www.youtube.com/watch?v=tLdRBsuvVKc

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