Mark Woo wuxinwei

Project Reactor: From Zero to Hero

In this series of pages, I will discuss project reactor and reactive programming from basic concepts to reactor internal implementation details. This discussion is based on the official reference documentation, the java-doc, talks by maintainers of reactor e.g. at the spring I/O and other distributed material, and should summarise and connect all this information. It should complement the official reference documentation and java-doc. Although the name says "from zero to hero", basic knowledge about the library is advised to fully benefit from it.

As a short disclaimer, I am a professional software engineer with some years of experience in using reactor, but not a maintainer or creator of the library. Information and knowledge in this post are based on the official documentation and talks, but I cannot exclude misconceptions on my side.

[Why and when to use Reactor](https://gist.github.com/Lukas-Krickl/50f1daebebaa72c7e944b7c319e3c073#file-01-why-and-when-to-use

There are several ways to clone a repository from github. Similar from other providers, such as bitbucket, gitlab, etc.

https://git-scm.com/book/en/v2/Git-on-the-Server-The-Protocols

Mostly, we use

http
ssh

Sample clone commands:

OpenSSL Cheat Sheet 🔐

Install

Install the OpenSSL on Debian based systems

sudo apt-get install openssl

gRPC Best Practice @ CoreOSFest 2017

https://coreosfest2017.sched.com/event/AWYc/best-practices-for-go-grpc-services-doug-fawley-google

Just small note for me. Hope the slide will be opened.

API design
- Idmpotency
  - It should be safe to retry an RPC without knowing whether it was processed
Example

How to config rabbitmq server cluster [3 nodes]

Edit /etc/hosts

vi /etc/hosts
192.168.10.157  rabbitmq-1
192.168.10.159  rabbitmq-2
192.168.10.161  rabbitmq-3

Some of the Redis best practices content has moved

This content from this markdown file has moved a new, happier home where it can serve more people. Please check it out : https://docs.microsoft.com/azure/azure-cache-for-redis/cache-best-practices.

NOTE: Client specific guidance listed below is still valid and should still be considered. I will update this document once all content has been moved.

People

`:bowtie:`	😄 `:smile:`	😆 `:laughing:`
😊 `:blush:`	😃 `:smiley:`	☺️ `:relaxed:`
😏 `:smirk:`	😍 `:heart_eyes:`	😘 `:kissing_heart:`
😚 `:kissing_closed_eyes:`	😳 `:flushed:`	😌 `:relieved:`
😆 `:satisfied:`	😁 `:grin:`	😉 `:wink:`
😜 `:stuck_out_tongue_winking_eye:`	😝 `:stuck_out_tongue_closed_eyes:`	😀 `:grinning:`
😗 `:kissing:`	😙 `:kissing_smiling_eyes:`	😛 `:stuck_out_tongue:`

	# API Design Guidelines


	# Introduction

	The PayPal platform is a collection of reusable services that encapsulate well-defined business capabilities. Developers are encouraged to access these capabilities through Application Programming Interfaces (APIs) that enable consistent design patterns and principles. This facilitates a great developer experience and the ability to quickly compose complex business processes by combining multiple, complementary capabilities as building blocks.

	PayPal APIs follow the [RESTful][0] architectural style as much as possible. To support our objectives, we have developed a set of rules, standards, and conventions that apply to the design of RESTful APIs. These have been used to help design and maintain hundreds of APIs and have evolved over several years to meet the needs of a wide variety of use cases.

	We are sharing these guidelines to help propagate good API design practices in general. We have pulled extensively from the broader community and believe that it is importan

	# Borrowed from:
	# https://github.com/silven/go-example/blob/master/Makefile
	# https://vic.demuzere.be/articles/golang-makefile-crosscompile/

	BINARY = superdo
	VET_REPORT = vet.report
	TEST_REPORT = tests.xml
	GOARCH = amd64

	VERSION?=?

	Producer

	Setup
	bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test-rep-one --partitions 6 --replication-factor 1
	bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test --partitions 6 --replication-factor 3

	Single thread, no replication

	bin/kafka-run-class.sh org.apache.kafka.clients.tools.ProducerPerformance test7 50000000 100 -1 acks=1 bootstrap.servers=esv4-hcl198.grid.linkedin.com:9092 buffer.memory=67108864 batch.size=8196