Rpc framework
Download as PPTX, PDF0 likes394 views
This document discusses several RPC frameworks including REST, SOAP, gRPC, Hessian, Thrift, and Avro. REST has limitations like multiple round trips and weakly typed endpoints. gRPC offers features like streaming, security, and performance while being interoperable. Both Thrift and gRPC use protocol buffers for interface definition and code generation. Avro can be used for both RPC calls and storing data in files. A benchmark shows gRPC and protocol buffers provide better performance and efficiency than alternatives like JSON or Thrift.
Rpc framework
- 3. Beyond REST • OSFA • Multiple Round Trips • Versioning • REST endpoints are usually weakly-typed and lack machine-readable metadata • Additional Use Cases • 요약 : REST 가 간결하나 기능적 한계
- 4. RPC
- 5. RPC Design Considerations Well understood problems from last decade: ● Data types (what kind of data can I encode) ● Protocol (what is the encoding/representation) ● Transport (method to transport it) ● Features (language support, IDL) ● Efficiency (how much time/space?) Ongoing problems to solve: ● Ease of programmer use (specifying IDL contract and b ackward/forward compatibility, versioning) ● Ease of debuggability
- 6. Hessian • The Hessian binary web service protocol makes web services usable without requiring a large framework • Without learning yet another alphabet soup of protocols. • Java, Python, C++, .Net C#, PHP 등 • Java : version 4.0.51 - 2017/03/29
- 7. Creating a Hessian Service 1. Create an Java interface as the public API 2. Create a client using HessianProxyFactory 3. Create the Service implementation class 4. Configure the service in your servlet engine.
- 8. • stubby -> Protocol Buffer(2008) 오픈소스 • PB : Google, ActiveMQ, Netty • gRPC : 2015, 오픈소스 • Netflix, CoreOS, Cisco/Juniper • Streaming, Bidirectional streaming • Built-in security and authentication • SSL/TLS, Oauth, JWT access • Layering on top of HTTP/2 standard • Performance: Binary protocol, Stream multiplexing • Interoperability with 3rd party proxies, tools, libraries… • App-level Flow control, Call-cancellation • Rich features • Load balancing, Tracing, Tooling ecosystem (cmdline tool)... gRPC
- 9. gRPC 1. Define a service in a .proto file using Protocol Buffers IDL 2. Generate server and client code using the protocol buffer compiler with grpc plugin 3. Use the gRPC API to write a simple client and server for your service in the languages of your choice
- 10. gRPC
- 11. Thrift • x-googler developed at Facebook • open sourced in April 2007 • Facebook, Evernote, Cassandra Client API, LastFM • gRPC(PB)와 차이점 • thrift • 3 common IDL container types(lists, sets, maps)
- 12. Thrift • Auto generated PolyGot clients. • % thrift --gen java user.thrift • gen-java : User.java, UserService.java • Multiple servers to choose from • TSimpleServer : Simple single threaded server • TThreadPoolServer : Uses Java's built in ThreadPool management • TNonblockingServer : non-blocking TServer implementation • THsHaServer : extension of the TNonblockingServer to a HalfSync/Half-Async server
- 13. Thrift
- 14. Avro • Doug Cutting • RPC 호출 과 파일에 데이터 저장하는 기능 • Hadoop의 RPC를 Avro RPC로 교체 • MS : .Net 용 Avro 개발 사용 중. • Dynamic schema • Schema in JSON • No need to compile