This error generally occurs because of a network issue between the client and Fastly. This error can be resolved the same way as the backend read error. This error is similar to the backend read error but occurs when Fastly sends information in the form of a POST request to the backend. This allows the origin to avoid slowdowns and to process only requests on a few connections from the shield.įastly enforces a 60 second timeout between nodes unless you're passing requests in vcl_recv. Reducing TCP handshakes resulting from using multiple POPs.Shortening the distance needed to establish a connection.Setting up an origin shield provides two advantages: Increasing the connection timeout values set for the Fastly Host.
Two common ways to alleviate these timeout errors include: Similar to backend read errors, connection timeouts can be caused by transient network issues, long trips to origin, and origin latency. This error occurs if the request times out while waiting for Fastly to establish a TCP connection to your origin or waiting for your origin to respond to the request. Also, if there is an external interface in front of the origin (such as a load balancer or firewall), review the timeouts for these interfaces. Adjust the backend timeout values on the Edit this host page in the Advanced options area.
After benchmarking some of the slower paths in your application, you should have an idea of your ideal backend response time. Increasing your backend timeout settings.
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