Why am I receiving an error when copying my ElastiCache snapshot?

Last updated: 2022-07-15

I'm trying to copy my Amazon ElastiCache for Redis snapshot or backup to an Amazon Simple Storage Service (Amazon S3) bucket. The copy operation is stuck or failing. How can I troubleshoot this?

Short description

ElastiCache snapshot copy operations might fail or get stuck for one of the following reasons:

  • The destination S3 bucket is not in the same Region as the snapshot.
  • S3 doesn't have the necessary permission to access ElastiCache.
  • The user doesn't have the proper Identify and Access Management (IAM) policy set to access an S3 bucket.
  • The cluster is using data tiering.

Resolution

  • Make sure that you followed the steps for exporting your backup.
  • Make sure that ElastiCache has the necessary permissions to access your S3 bucket. You can review error messages to rule out S3 permission issues.
  • Make sure that you're not using data tiering in your cluster. Data tiering is turned on by default if you're using a combination of Redis engine version 6.2n or later with the rdg cache node family.

copy-snapshot (AWS CLI Command reference)

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