So, you decided to reliably write data to disk
summary
Covers why durable disk writes matter as much as query speed for databases, examines common causes of data loss during persistence, and reviews techniques for reliable on-disk storage such as write ordering, fsync strategies, journaling/append-only designs, and trade-offs between performance and durability.
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chapters (15)
- 0:00Introduction
- 1:09Data write problems
- 3:18OS caching effects
- 8:20Disk errors and false acks
- 11:40Fsync error consequences
- 13:28PostgreSQL vs filesystem debates
- 16:13POSIX and abstraction issues
- 21:18Reliable file renaming
- 22:01Power-cut testing
- 23:05Failure injection testing
- 27:41FUSE filesystem testing
- 31:38Durability models and tool
- 36:34Formal methods and verification
- 39:43Summary and recommendations
- 41:29Q&A
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