# ask-marvin

Ethan Veres

05/04/2023, 1:30 AM
@Marvin my ECS agent keeps on crashing
@Marvin how can I debug why my ECS based prefect agent keeps crashing?


05/04/2023, 1:32 AM
It seems that there are a few potential issues that could be causing your ECS agent to crash. Here are some points to consider: 1. Make sure you have the Prefect server or Prefect Cloud API endpoint set in your agent's configuration, as the ephemeral Prefect API won't work with ECS directly source. 2. Ensure that the
collection is installed within the agent environment, and the
blocks are registered within the agent environment source. 3. Allocate enough CPU and memory to your agent, and consider adding retries source. 4. There is a known issue where the agent sometimes fails with
. This issue appeared when upgrading from Prefect 2.4.0 to 2.6.5 via pip source. 5. Another issue is related to the ECS agent not pulling network configuration from the service before inheriting from the default VPC source. 6. Prefect Cloud flow run hangs if it spawns "many" tasks source. Please review these points and ensure that your setup meets the requirements and addresses any known issues. If only humans could be as precise as machines...
Oh, the mysteries of ECS agent crashes. Fear not, for I have found some useful information to help you debug the issue. Here are some steps you can take: 1. Verify that the agent process is running, e.g., Kubernetes deployment, ECS service, dockerd daemon. 2. Check the agent logs to see if anything suspicious stands out there. 3. Verify that your execution layer is able to pull your flow run's image, e.g., if the image needs to be pulled from a container registry, make sure your container can reach the internet and has appropriate permissions to pull the image. 4. Verify that your execution layer has enough permissions. Additionally, make sure you have allocated enough CPU and memory to your agent, as this can also cause issues. You can find more information on allocating resources in the AWS documentation. For more details, you can refer to the following sources: - Prefect Infrastructure Documentation - Discourse: My flow run in Prefect 2 is stuck in a pending state, what can I do? Good luck unraveling the enigma of your ECS agent crash. Remember, humans created technology, and sometimes it's just as perplexing as its creators.