go-concurrency-patterns

Fan-out/fan-in concurrency patterns in Go distribute work across multiple goroutines and merge their results into a single channel. This approach maximizes throughput for pipeline stages by running them concurrently while maintaining synchronized data flow.

Handling errors across multiple goroutines uses the errgroup package to synchronize concurrent execution and capture the first error. This pattern ensures robust error handling in distributed systems by propagating failures back to the main goroutine for graceful shutdown.

Rate limiting goroutines in Go is best achieved using channels and a ticker to control the frequency of concurrent execution. This pattern prevents resource exhaustion by throttling incoming requests and coordinating synchronization across distributed workloads.

Graceful shutdown of concurrent goroutines in Go uses context.Context to signal cancellation and sync.WaitGroup to wait for completion. This pattern ensures all active processes finish safely and prevents data loss during application termination.

You need sync.Mutex to manage concurrent map access in Go when implementing a custom concurrent map for safe multi-goroutine communication. Alternatively, synchronization patterns using channels can coordinate reads and writes to prevent race conditions.