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Databases & messaging · #dynamodb
Learn how DynamoDB's on-demand mode scales instantly for spiky traffic, when it saves money, and how to switch tables safely.
When Terraform blocks on a state lock, the culprit is often a missing DynamoDB table, bad IAM rights, or stale lock items. This guide walks through the most common symptoms, ordered checks, and step‑by‑step fixes so you can restore normal operation quickly.
A diagnostic guide recognizing DynamoDB throttling and hot partition symptoms, ordered checks, capacity and key redesign fixes, and AWS Support escalation criteria.
Learn how the TransactWriteItems API groups multiple updates into an all‑or‑nothing operation, preventing partial inventory decrements when a condition fails.
Learn the minimal, secure design for Terraform remote state locking using Amazon S3 and DynamoDB, including trust boundaries, operational checks, failure modes, and when to revisit the architecture.
DynamoDB transactions let you atomically write or read up to 25 items across tables. This blog explains the guarantees, limits, cost, and provides a concrete CLI example to help you decide when to use them.
Learn how to prevent lost updates in DynamoDB using numeric versioning and ConditionExpressions to implement a lightweight, server-side optimistic concurrency control pattern.
Learn how to handle DynamoDB's 1 MB result limit using LastEvaluatedKey and ExclusiveStartKey, and why empty item lists don't always mean the end of your data.
Learn how DynamoDB Adaptive Capacity automatically shifts unused throughput to hot partitions, reducing throttling without manual scaling, and see a concrete leaderboard example.
terraform
aws