@Marvin it seems my flow runs and deployments are gone once prefect server is restarted. Is there a recovery/installation procedure to get them back?

It appears that there might have been an issue with your Prefect server configuration or storage. Unfortunately, there is no direct excerpt about recovering lost flow runs and deployments after a Prefect server restart in the provided information. However, the Prefect documentation suggests configuring the Prefect server instance properly. Here are some general steps you could follow although not specific to recovery after server restart: 1. Check whether the Prefect API Server's URL is correctly set. You can set it using the following command:

prefect config set PREFECT_API_URL="<http://127.0.0.1:4200/api>"

Please replace

127.0.0.1:4200

with your actual server instance's IP and port. 2. Ensure you are using a persistent storage backend for the Prefect server that will retain the server state between restarts. Using ephemeral storage will result in loss of data when the server restarts. 3. Review the Prefect Server's logs to identify if there were errors during shutdown or startup that could have led to data loss. If your deployments and flows have been lost after a restart, this might indicate that the server's database was not properly persisted. It's critical to ensure that the database state remains intact between restarts, which typically involves mounting a persistent volume to the database service when deploying Prefect Server with Docker or Kubernetes. If persistent information was expected and it is still missing after a restart, you may have encountered a bug or an misconfiguration. In such an event, I recommend checking the Prefect community Slack and GitHub for posts from others who have encountered similar issues. If you are unable to find the solution or you believe there's a bug, you can open a new issue on the Prefect GitHub repository to get help from the community and maintainers. Would you like to proceed with searching in the Prefect community resources or GitHub issues?

@Marvin yes please

It seems that there are currently no open GitHub issues related to data loss after a Prefect server restart. This could mean that the issue has not been widely reported or it may be a very specific problem to your deployment setup. Since there's no direct issue corresponding to this on GitHub, I would suggest the following actions: 1. Review Configuration: Make sure your Prefect server is configured with persistent storage for both the database and potentially any file storage you are using. Without persistence, a restart could cause data to be lost. 2. Consult the Documentation: There may be sections in the Prefect documentation that address persistence and avoiding data loss. The documentation could provide guidance on configuring your server to avoid such incidents in the future. 3. Reach out to the Community: The Prefect community can be very helpful. Consider asking for advice on the Prefect community Slack channel. 4. Open a New GitHub Issue: If you believe you've encountered a bug or an unexpected behavior, you can open a new issue on the Prefect GitHub repository. Make sure to provide detailed information about your deployment, configuration, and the behavior you observed. If you'd like to take a more specific approach or need further assistance, please let me know how I can assist you further.

are you running against the ephemeral API? i.e. whats your

PREFECT_API_URL

value?

I think so. what are other solutions? I have a feeling database pod restarted and everything is gone

are you using the helm chart to run the server?

hmm I dont think so. I didnt set up the server but I dont see anything prefect related under helm charts

gotcha, if you're running Prefect Server on k8s I would check it out, you can configure a PVC for the db