Hot partition problem and throughput bottlenecks

8/10 High

DynamoDB partitions are limited to approximately 3,000 read capacity units and 1,000 write capacity units per second. When a single partition key receives excessive traffic ("hot key"), it can throttle and cause performance degradation. This is a hard limit that cannot be easily worked around and affects applications with uneven data access patterns.

Amazon DynamoDBAWS
Category
performance
Workaround
partial
Stage
deploy
Freshness
persistent
Scope
single_lib
Recurring
Yes
Buyer Type
team
Maintainer
active

Sources

Collection History

Query: “What are the most common pain points with DynamoDB for developers in 2025?”4/5/2026

Each DynamoDB partition is limited to about 3,000 read capacity units and 1,000 write units per second. If a single partition key receives excessive traffic, it can throttle, a phenomenon known as the hot partition problem.

Created: 4/5/2026Updated: 4/5/2026