gRPC 1.16.0 正式釋出，谷歌的高效能 RPC 框架

摘要： gRPC 1.16.0 釋出了，這是一個 gRPC 核心更新版本，針對各語言版本都進行了更新，包含優化、改進和錯誤修復，下面列出了值得關注的更新： Core Keepalive watchdog firing should return status UNAVAILABLE...

RPC/">gRPC 1.16.0 釋出了，這是一個 gRPC 核心更新版本，針對各語言版本都進行了更新，包含優化、改進和錯誤修復，下面列出了值得關注的更新：

Core

• Keepalive watchdog firing should return status UNAVAILABLE . ( ofollow,noindex" target="_blank">#16764 )

• Set TCP_USER_TIMEOUT socket option for linux . ( #16419 )

• When using c-ares, resolve ip literals and Windows localhost on our own. ( #16420 )

• Turn loading system root certificate as default. ( #16536 )

• Change pick_first to not unref unselected subchannels. ( #16342 )

C++

• fix *_unsecure.pc files. ( #16754 )

• cmake: prevent C core from depending on libstdc++. ( #16752 )

• Implement Watch method in health check service. ( #16574 )

• Fix async_stream.h warning on Visual Studio. ( #16544 )

C#

• Secure channel throughput improvements: Linux x86_64 version of grpc_csharp_ext nuget now ships with assembly-optimized version of boringssl, which leads to significant improvements in throughput of secure C# channels. See https://github.com/grpc/grpc/blob/v1.16.x/doc/ssl-performance.md for details.

• Expose certificate request type in SslServerCredentials . ( #16552 )

• build assembly-optimized grpc_csharp_ext with cmake. ( #16777 )

• ChannelOption improvements. ( #16756 )

• Various allocation optimizations. ( #16631 )

• Add new C# serialization API. ( #16367 )

• Add constructor overload for RpcException . ( #16553 )

• Avoid leaking resources when starting a call fails. ( #16554 )

• Expose TryWaitForStateChangedAsync . ( #16556 )

• Add exception info to Status.Detail if metadata credentials throws. ( #16543 )

Objective-C

• Fixed a crash related to error reporting. ( #16696 )

Python

• Fix SSL channel credential when an argument is None. ( #16640 )

• Bazel: Fix python BUILD rules. ( #16561 )

Ruby

• Switch to send instead of  method(...).call . ( #16642 )

• Rescue GRPC::Core::CallError so that worker threads are not killed. ( #16477 )

• support for ruby_package options. ( #16014 )

• ruby: Raise instead of hanging if grpc is used before and after fork. ( #16332 )

釋出說明和下載地址 https://github.com/grpc/grpc/releases/tag/v1.16.0

gRPC 是 Google 開源的高效能、通用 RPC 框架，面向移動和 HTTP/2 設計，是由谷歌釋出的首款基於 Protocol Buffers 的 RPC 框架。gRPC 基於 HTTP/2 標準設計，帶來諸如雙向流、流控、頭部壓縮、單 TCP 連線上的多複用請求等特性。這些特性使得其在移動裝置上表現更好，更省電且節省空間佔用。