CheckEnv：利用图形快速检测环境间的 RPC 调用

Uber consists of a large number of loosely coupled microservices that interact with each other through remote procedure calls (RPCs). These RPC calls serve as the communication mechanism between services, allowing them to exchange data and invoke specific actions. The complex nature of the call chain, combined with the involvement of numerous services, can potentially lead to cross-environment communication, particularly between the production and non-production environments. 

Uber由大量松散耦合的微服务组成，它们通过远程过程调用（RPC）相互交互。这些RPC调用作为服务之间的通信机制，允许它们交换数据并调用特定的操作。调用链的复杂性，加上众多服务的参与，可能会导致跨环境通信，特别是在生产和非生产环境之间。

The intricate call chain arises due to the distributed nature of microservices, where each service performs a specific function and may depend on the outputs of other services. As data flows through the system, it traverses multiple services, triggering RPC calls at each step. The complex call chain may involve numerous services, each initiating calls to other services based on their specific requirements.

复杂的调用链是由微服务的分布式性质引起的，每个服务执行特定的功能，可能依赖于其他服务的输出。随着数据在系统中流动，它穿过多个服务，触发每一步的RPC调用。复杂的调用链可能涉及众多服务，每个服务根据其特定的要求调用其他服务。

This complexity becomes a critical factor when environments such as production and staging coexist. If not carefully managed, RPC calls within the microservices architecture can inadvertently cross environment boundaries, leading to unintended interactions between the production and staging environments. Such cross-environment calls can have undesirable consequences, including data inconsistencies, unexpected behavior, or potential incidents. It is worth noting that while cross-environment calls are permissible, for example, shadowing production traffic in staging for feature validation, the focus is on preventing unintended ones.

当生产和分期等环境共存时，这种复杂性成为一个关键因素。如果不仔细管理，微服务架构中的RPC调用可能会无意中跨越环境边界，导致生产和分期环境之间的意外交互。这种跨环境调用可能会产生不良后果，包括数据不一致、意外行为或潜在事件。值得注意的是，虽然允许跨环境调用，例如在分期中模拟生产流量进行功能验证，但重点是防止意外的跨环境调用。

To mitigate these risks, proper design, configuration, and deployment practices should be followed. Implementing service i...