Overwatch

Overwatch is a general RPC monitoring system for distributed systems, utilizing D3 force layout as main diagram.

Overwatch provides an overview of the current state of the entire system, making it super easy for system administrators to understand the ongoing RPC events and pinpoint the source of failure in the system.

Unlike common monitoring systems, a well-designed graph (with D3 force layout) is used to visualize data.

every circle represents a system
every line represents a dependency between two systems
rpm = requests per minute, fpm = failure per minute
circle size indicates rpm of the system
line dash density indicates rpm between two systems
circle color indicates the health of the system in the last 1 minute
two additional ring outside the circle inicates the health of the system in the past 5 minutes and 15 minutes

Installation

Download release version (not available yet...)

Or use install.sh to build from source

Dependencies

NodeJS / NPM
RDBMS (MySQL is recommended)
Redis (Optional)

Getting Started

After proper installation, you have to

modify config files server/app/config.json & web/src/environments/environment.ts
start server: under server run

$ npm start

build & serve web content: under web run

for testing:

$ npm start

then visit localhost:4200

for production:

$ npm run build

then serve static directory web/dist with Nginx (or whatever)

Submiting Statistics

Send individual server stats via Socket.IO client

This is recommended for testing.

Demo: SocketIODemo.java

Send individual server stats via Redis pub/sub

This is recommended for small-scale systems to publish stats.

Demo: RedisDemo.java

Send aggregated server stats via REST

This is the recommended method for large & complex systems to publish aggregated stats.

yingzidd12/overwatch