Go Race Detector-Go Race Detection Tool

Example

Identifying when two goroutines access the same variable concurrently without proper synchronization.

Scenario

In a web application, two goroutines handle incoming requests that update a shared cache. Without proper synchronization, updates may be lost or overwritten unpredictably. The Race Detector would flag this as a race condition, prompting the developer to implement a mutex to ensure only one goroutine can update the cache at a time.

Example

Highlighting use of channels or mutexes that does not effectively prevent race conditions.

Scenario

In a data processing application, multiple goroutines read from and write to a shared data structure, supposedly synchronized by a channel. However, incorrect use of the channel could still lead to race conditions. The Race Detector can identify this improper synchronization, guiding developers to correct the synchronization logic, perhaps by ensuring that all access to the shared data is mediated correctly through the channel.

Example

Providing detailed reports and diagnostics for identified race conditions, including stack traces and variable access histories.

Scenario

During the development of a distributed system, the Race Detector identifies a race condition involving shared state across different nodes. It provides a detailed report including the goroutines involved, their access patterns, and suggestions for resolving the issue. This detailed diagnostic information allows developers to understand the root cause and implement a robust solution, such as introducing distributed locks or redesigning the system architecture to avoid shared state.