How to Prevent 'Connection Reset by Peer' Errors in Go's Concurrent HTTP Requests?

How to Resolve "Connection Reset by Peer" Errors During Concurrent HTTP Requests in Go

When executing concurrent HTTP requests using go routines and channels, the error "connection reset by peer" can occasionally arise, indicating an unexpected termination of the server connection. This error message typically occurs when too many connections are attempted concurrently or reconnection is attempted too quickly.

To prevent these errors, it's crucial to understand the cause and implement appropriate solutions:

1. Determine Optimal Concurrency Level: Although high concurrency is often associated with enhanced efficiency, starting numerous connections simultaneously may result in performance degradation. Determining the optimal concurrency level through testing will yield the best results.
2. Configure Transport.MaxIdleConnsPerHost: To accommodate the expected concurrency level, you should set the Transport.MaxIdleConnsPerHost property accordingly. If the value is lower than the target concurrency level, server connections will frequently close and reopen after each request, leading to reduced performance and potential server connection limits being exceeded.

By implementing these optimizations, you can avoid "connection reset by peer" errors and achieve optimal performance when performing concurrent HTTP requests in Go.

The above is the detailed content of How to Prevent 'Connection Reset by Peer' Errors in Go's Concurrent HTTP Requests?. For more information, please follow other related articles on the PHP Chinese website!