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MongoDB Replication Lag vs w: “majority” in Microservices
Illustration of a catastrophic systemic bottleneck in a cloud architecture
MongoDB Replication Lag vs w: “majority” in Microservices
Architecture Blog Database DevOps Kubernetes
admin By admin
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March 16, 2026
MongoDB Replication Lag vs w: “majority” in Microservices

When configuring MongoDB for a microservices architecture, a single slow collection can crash the entire system. This incident illustrates how…