Five Ways to Deal With AWS DynamoDB GSI Throttling

DynamoDB GSI throttling can occur when requests exceed provisioned throughput capacity leading to performance bottlenecks. To prevent throttle, use proper partition key design strategies, separate read/write capacity units, and monitor GSI write capacity carefully.

Multiple approaches to mitigate throttle include AWS CloudWatch contributor insights, singletable vs. multiple table design patterns, shard partition, intermediate scalable buffer (e.g. Amazon SQS/Kinesis), CQRS pattern and using a secondary data store (e.g. Amazon Aurora).