@Marvin We've been finding lots of ECS tasks launched by Prefect Flows that are just lingering, and I have to kill them manually - this never used to happen in Prefect 1. Any idea where to look for the problem?

It appears that there are no GitHub issues directly related to ECS tasks lingering after being launched by Prefect Flows. However, there could be several reasons why this might happen, and investigating the problem could involve a few steps: 1. Task Configuration: Check the configuration of the ECS tasks within Prefect to ensure they are not set up to restart or have an incorrect shutdown behavior. 2. Flow Configuration: Look at the Flow configuration in Prefect 2.x, specifically any code related to task retries, timeouts, and on-failure behaviors which could cause tasks to not shut down. 3. Infrastructure Issues: There could be issues with the underlying ECS infrastructure, like network connectivity problems that prevent tasks from receiving the shutdown signal from Prefect. 4. Logs and Metrics: Review the logs from the Prefect Flows and ECS tasks to identify any patterns or errors that occur when tasks should be ending. 5. Prefect Updates: There might have been updates or changes from Prefect 1.x to 2.x that alter the way tasks are managed and shut down. Reviewing the Prefect 2.x documentation on task management and ECS integration could provide clues. 6. Prefect Community: Engage with the Prefect community, either on their discourse forum or Slack channel, as there might be others who have encountered similar issues and can provide insights or solutions. 7. Prefect Support: If the issue continues and you're unable to find the cause, consider reaching out to Prefect support directly. Please ensure that your Prefect environment and dependencies are updated to the latest version as bug fixes and improvements in regards to task execution and cleanup are often addressed in updates. If you would like me to search the documentation for more information or if there's anything specific you would like to investigate, please let me know!