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Databases & messaging · #dynamodb
Prevent state corruption in AWS by implementing Terraform state locking with DynamoDB. Learn the minimal design, IAM requirements, and how to handle stale locks.
Compare Terraform state backends — local, S3, Azure Blob, GCS, Consul, Terraform Cloud — with a decision matrix and a ready‑to‑use S3 + DynamoDB configuration.
Learn how to use ConditionExpression in DynamoDB UpdateItem to prevent race conditions and ensure attributes are updated only when they match an expected value or are absent.
Upgrading DynamoDB Global Tables to version 2019.11.09 introduces significant changes to how replication and write conflicts are handled. When an upgrade process is initiated across multiple regions, a failure during the transition can leave the table in an inconsistent state where some regions are on the new version and others remain on the legacy version.
terraform