MongoDB World 2018: What's Next? The Path to Sharded Transactions
•Transferir como PPTX, PDF•
0 gostou•420 visualizações
Speaker: Andy Schwerin, VP, Engineering, MongoDB
Recomendados
Recomendados
Mais conteúdo relacionado
Mais procurados
Mais procurados (20)
Semelhante a MongoDB World 2018: What's Next? The Path to Sharded Transactions
Semelhante a MongoDB World 2018: What's Next? The Path to Sharded Transactions (20)
Mais de MongoDB
Mais de MongoDB (20)
Último
Último (20)
MongoDB World 2018: What's Next? The Path to Sharded Transactions
- 1. What’s Next? Path to Sharded Transactions MongoDB 4.2
- 2. Andy Schwerin VP Server Engineering
- 3. def run_transaction(client): with client.start_session() as s: s.start_transaction() c1.insert_one(doc1, session=s) // application logic c1.find_one(match1, session=s) // application logic c2.insert_one(doc2, session=s) //application logic s.commit_transaction()
- 5. def run_transaction(client): with client.start_session() as s: s.start_transaction() c1.insert_one(doc1, session=s) // application logic c1.find_one(match1, session=s) // application logic c2.insert_one(doc2, session=s) //application logic s.commit_transaction() 1 2 3
- 6. Application Driver Query Router Query Router P S S S P S P S S Shard 1 Shard 2 Shard 3 c1.insert_one(doc1, session=s)1 Uncommitted write
- 7. c1.find_one(match1, session=s) Application Driver Query Router Query Router P S S S P S P S S Shard 1 Shard 2 Shard 3 2 Uncommitted write
- 8. Application Driver Query Router Query Router P S S S P S P S S Shard 1 Shard 2 Shard 3 c2.insert_one(doc2, session=s)3 Uncommitted write
- 9. Application Driver Query Router Query Router P S S S P S P S S Shard 1 Shard 2 Shard 3 s.commit_transaction() Uncommitted write 1. Select Coordinator Coordinator
- 10. Application Driver Query Router Query Router P S S S P S P S S Shard 1 Shard 2 Shard 3 s.commit_transaction() Uncommitted write 1. Select Coordinator 2. Prepare Coordinator Prepared write
- 11. Application Driver Query Router Query Router P S S S P S P S S Shard 1 Shard 2 Shard 3 s.commit_transaction() Uncommitted write 1. Select Coordinator 2. Prepare 3. Commit Coordinator Prepared write Committed write
- 12. Application Driver Query Router Query Router P S S S P P S S Shard 1 Shard 2 Shard 3 Failure case 1: Before Prepare Uncommitted write Coordinator
- 13. Application Driver Query Router Query Router P S S S P S P S Shard 1 Shard 2 Shard 3 Uncommitted write Coordinator Prepared write Failure case 2: After Prepare Shard Primary Failure
- 14. Application Driver Query Router Query Router P S S S P P S S Shard 1 Shard 2 Shard 3 Uncommitted write Coordinator Prepared write Failure case 3: After Prepare Coordinator Failure
- 15. Two Phase Commit Support ---- Coming in 4.2 P S S S P S Query Router
- 17. Retryable Writes Server-side write collision detection Application Driver Network Error Application Driver MongoDB MongoDB write unsuccessful write successful Network Error
- 18. Retryable Writes Server-side write collision detection Completed in 3.6 Application Driver Network Error Application Driver MongoDB MongoDB write unsuccessful write successful Network Error
- 19. Logical Sessions 1) Distributed Context Sharing P S S S P S Query Router 1) Distributed Context Sharing 2) Distributed Garbage Collection
- 20. Logical Sessions 1) Distributed Context Sharing 2) Distributed Garbage Collection Completed in 3.6
- 21. Cluster Time Relative time across the cluster
- 22. Cluster Time Relative time across the cluster Completed in 3.6
- 23. Replica Set Snapshot Reads Use Cluster Time to establish a point in time view of the data Completed in 4.0
- 24. Replica Set Transactions --- Completed in 4.0 SP S MongoDB Replica Set
- 25. What’s Left?
- 26. Global Snapshot Reads Use Cluster Time to establish a point in time view of the data across the entire cluster Coming in 4.2
- 27. Sharded Transactions - Coming in 4.2 Application Driver Query Router Query Router P S S S P S P S S Shard 1 Shard 2 Shard 3