Back in 2015, Square and Google collaborated to launch gRPC, an open source RPC framework backed by protocol buffers and HTTP/2, based on real-world experiences operating microservices at scale. If you build microservices, you will be interested in gRPC. This webcast covers: - a technical overview of gRPC - use cases and applicability in your stack - a deep dive into the practicalities of operationalizing gRPC

1. ©2016 Apigee Corp. All Rights Reserved.

2. ©2016 Apigee Corp. All Rights Reserved.
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4. gRPC: Microservices at Square
Manik Surtani
Senior Infrastructure Engineer, Square
@maniksurtani

6. We <3 JSON/HTTP

7. We also <3 monoliths*
(*) Not really. http://squ.re/spot

8. We preferred microservices

9. Java
Go
Ruby

10. Java
Go
Ruby
x 500

11. Stubby and
Sake
● JSON/HTTP for mobile & web client comms
● Replace server comms with Sake
● Stubby DNA
● Implements protobuf services
○ proto2

12. Sake
Often better warm
● Java
○ Asynchronous comms, blocking
APIs
○ Deadline propagation
○ ACLs
○ Integrates with service discovery
○ Distributed tracing
○ Retry logic
● Ported to Go
● Ruby support via a sidecar
○ Based on the Java impl

13. Modernizing
Sake
● Move networking to Netty
● Open source Sake!
● Move to HTTP/2
○ Streaming!
● Native Ruby implementations
○ No more sidecars

14. ARCWire
● A Google effort
● A proto service based RPC
framework
● Stubby DNA
● HTTP/2
● Open Source

16. gRPC
Features
● Request/response as well as bidirectional streams
● Synchronous and asynchronous
● Backed by non-blocking IO
● Header compression
● Multiplexing requests over a single connection
● Built with mobile clients in mind
○ Better battery life, data usage than JSON/HTTP

17. Supported
Platforms
Java (inc. Android) Python
Go PHP
C Ruby
C++ Node.js
Objective-C C#

18. Message
format
● Built for protocol buffers *
● Pluggable
● Other serialization formats could be used
instead
○ Avro, Thrift, Cap’n Proto, etc.
* http://developers.google.com/protocol-buffers

19. Protocol
buffers
● Language-neutral, platform-neutral
● Extensible
● Binary, very compact
● Strongly typed
● Versioned
● Easily transformed to JSON for debugging

20. Protocol
Buffers

21. Protocol
Buffer
Services

22. Protocol
Buffers

23. gRPC
Server

24. gRPC
Server

25. gRPC
Client

26. Adding gRPC
to your stack
● Protobuf version control
● Service discovery
● Load balancing
● Security
● Logging
● Metrics

27. gRPC
performance
● Measured by etcd *
● 120µs round trips, compared to 1.6ms
roundtrips for JSON/HTTP
● 3 orders of magnitude?!
* http://bit.ly/etcd_grpc

28. ©2016 Apigee Corp. All Rights Reserved.
Slideshare
slideshare.com/apigee
Apigee Community
https://community.apigee.com
YouTube"
youtube.com/apigee

29. Thank you