Release Notes
The chronological history of updates to the OtterTune service and agent.

Service Update 2022-03-24

New Features

  • More database health checks including a memory utilization check and a resource under-utilization check.

Bug fixes

  • Fixed issue where we were unable to support a subset of RDS instance types.
  • Fixed issue where users would not be able to switch back to monitoring mode when tuning for p99 query latency where p99 query latency data was missing.
  • Other minor bug fixes.

Service Update 2022-03-16

New Features

  • Amazon Aurora Support - auto-tuning for Amazon Aurora databases is now available with our free Starter tier plan.
  • PostgreSQL v14 Support - auto-tuning for PostgreSQL v14 is now available.
  • Database Health Checks - OtterTune informs you of potentially problematic database performance problems and suggests actions to remedy them.
  • Database Insights - OtterTune provides deeper visibility into the performance and workload characteristics of your database.
  • Best Configuration Baseline - see which of OtterTune's configurations has performed the best so far over your database's baseline (first) configuration.
  • Kubernetes Manifest - deploy the OtterTune Agent to a Kubernetes cluster.
  • Terraform Template - automatically provision your OtterTune IAM role via Terraform.

Bug Fixes

  • Fixed issue in the Review tab where values for the latest recommendation would display for a few seconds then disappear.
  • Fixed issue that prevented users from switching between instance- and cluster-level tuning for Amazon Aurora databases.

Service Update 2021-12-16

New Features

  • Human-in-the-Loop - approve knob changes before they are applied to your database.
  • New Target Objectives - support for p99 query latency and CPU utilization as target objectives options for tuning.

Bug Fixes

  • Fixed issue in the Configurations tab where the list of knobs displayed would not reset when selecting a different configuration.

Service Update 2021-10-13

New Features

  • Containerized OtterTune Agent - we support an open-source agent running on your hosts that can collect database metrics without our service needing direct network access to your database.
  • CloudFormation templates - it is now much easier to provision your OtterTune IAM role and the agent
  • Okta Self-Service Registration - create your own OtterTune account to automatically receive free-tier access to our service.
  • Customizable Tuning Schedules - control when OtterTune is able to optimize your database
  • "Apply Now" for Configurations - you can now manually apply previously seen configurations by OtterTune
  • Configuration Versioning - see how your Database parameter group changes overtime

Bug Fixes

  • Fixed issue where we were always treating changes to the MySQL parameter innodb_thread_sleep_delay as new configuration changes. This parameter is updated by InnoDB automatically when innodb_adaptive_max_sleep_delay is set. Now, we no longer treat automatic changes to innodb_thread_sleep_delay as a new configuration.
  • Fixed y-axis issue on charts where we were not appropriately subdividing for small ranges
  • Fixed issue where we would incorrectly display an error message suggesting that users' agents have been disconnected if they stayed on the database overview page for too long.
  • Fixed issue where we lost track of a user's parameter group ARN when they switched from Tuning mode to Monitoring mode.