Replication becomes bottleneck on busy servers

8/10 High

Replication on heavily loaded MongoDB servers either causes DoS on the master or replicates so slowly that the operation log is exhausted, requiring very large oplog sizes (e.g., 50GB) and still failing to keep up.

MongoDB
Category
performance
Workaround
partial
Stage
deploy
Freshness
persistent
Scope
single_lib
Recurring
Yes
Buyer Type
enterprise

Sources

Collection History

Query: “What are the most common pain points with MongoDB for developers in 2025?”4/4/2026

Replication would often, again, either DOS the master, or replicate so slowly that it would take far too long and the oplog would be exhausted (even with a 50G oplog).

Created: 4/4/2026Updated: 4/4/2026