Databases are the backbone of modern applications, and MongoDB stands out with its flexibility and scalability. Central to its functionality is the WiredTiger storage engine. WiredTiger, as MongoDB’s default engine, seamlessly merges document-level concurrency for high throughput, advanced compression techniques …
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Inside the Engine: The Sub-Millisecond Performance Relay of MongoDB 8.0
Table of Contents Stage 1: Network Arrival & Task DispatchStage 2: OperationContext & ACL/ParsingStage 3: PlanCache Lookup & Query PlanningStage 4: SBE Execution & Cooperative YieldingStage 5: WiredTiger MVCC, Cache & JournalingStage 6: Index Mastery & Pre-SplitsStage 7: Replication & …
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Building Systems That Know Why They Exist ~ When Data, Logic, and Intent Finally Align
Every software system begins with intent. A human decision. A statement of what should exist, how it should behave, and why it matters. But somewhere along the way, that intent dies. It’s decomposed into documentation, user stories, and scattered logic. …
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How MongoDB Decides What to Forget?
Table of Contents Scan → Score → Hazard Check → Write (if dirty) → Evict → Adjust Metrics Inside MongoDB’s storage engine, WiredTiger, nothing happens by accident. Every page in memory exists under policy — governed, measured, and continuously evaluated against …