Since you are building your "MIG PLUS" app using the Jac programming language, this error is directly related to your code's architecture. In Jac (and the Jaseci framework), a Walker is a core Object-Spatial Programming construct that executes computation by traveling through the nodes and edges of your data's topology. The error message Walker ai_chat failed means that a specific walker in your code named ai_chat timed out while trying to complete its task.Because you are building an AI agent, this 504 Gateway Timeout is most likely happening for one of the following reasons:LLM API Timeout: If your ai_chat walker relies on an AI model (such as using the by llm() feature), the model is taking too long to generate a response. CloudFront cuts the connection if the backend takes longer than its configured time limit to reply.Graph Traversal Overload: The ai_chat walker might be getting stuck traversing too many nodes or entering an infinite loop in your graph topology, causing the request to hang until it times out.Jaseci Server Load: The Jaseci runtime environment hosting your Jac application might be temporarily overwhelmed and unable to process the walker's dispatched computation quickly enough.To troubleshoot, check the specific code block for your ai_chat walker to ensure the prompts you are sending to the LLM are not excessively long, and verify that the external AI API is currently operational.
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