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Amazon Athena
User Guide

Service Limits

Note

You can contact AWS Support to request a limit increase for the limits listed here.

  • By default, concurrency limits on your account allow you to submit five concurrent DDL queries (used for creating tables and adding partitions) and five concurrent SELECT queries at a time. This is a soft limit and you can request a limit increase for concurrent queries.

  • If you use Athena in regions where AWS Glue is available, migrate to AWS Glue Catalog. See Upgrading to the AWS Glue Data Catalog Step-by-Step. If you have migrated to AWS Glue, for service limits on tables, databases, and partitions in Athena, see AWS Glue Limits.

  • If you have not migrated to AWS Glue Catalog, you can request a limit increase.

  • You may encounter a limit for Amazon S3 buckets per account, which is 100. Athena also needs a separate bucket to log results.

  • Query timeout: 30 minutes