https://github.com/hakobe/grpc-go-client-side-load-balancing-example

This is a gRPC client-side load balancing example on top of grpc-go.
https://github.com/hakobe/grpc-go-client-side-load-balancing-example

Last synced: 8 days ago
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This is a gRPC client-side load balancing example on top of grpc-go.

• Host: GitHub
• URL: https://github.com/hakobe/grpc-go-client-side-load-balancing-example
• Owner: hakobe
• License: mit
• Created: 2018-04-08T14:51:16.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2021-08-30T02:52:21.000Z (about 3 years ago)
• Last Synced: 2024-06-20T02:10:08.181Z (5 months ago)
• Language: Go
• Homepage:
• Size: 17.6 KB
• Stars: 16
• Watchers: 3
• Forks: 8
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# gRPC client side load balancing example using Go

This is a gRPC client-side load balancing example on top of [grpc-go](https://github.com/grpc/grpc-go).

The only load balancer bundled to grpc-go is `grpc.RoundRobin`. grpc RoundRoubin requires a `grpc.Resolver` which is intended to implement a DNS resolver or an other resourse resolution mechanism like Consul.

In this example I implemented a `grpc.Resolver` which only returns fixed servers initially passed. It is good for trying gRPC load balancing instantly.

## Prequirements

- [protoc](https://github.com/google/protobuf)

- [protoc-gen-go](https://github.com/golang/protobuf/tree/master/protoc-gen-go)

  - `$ go get -u github.com/golang/protobuf/protoc-gen-go`

## Build

```

$ make

```

## Run

```console

# Run 4 servers

$ ./server/server -hostport 0.0.0.0:5000 &

$ ./server/server -hostport 0.0.0.0:5001 &

$ ./server/server -hostport 0.0.0.0:5002 &

$ ./server/server -hostport 0.0.0.0:5003 &

$ sleep 3 # Wait for server to start up

# Do gRPC method calls 10000 times

$ time ./client/client -n 10000 \

    -server localhost:5000 \

    -server localhost:5001 \

    -server localhost:5002 \

    -server localhost:5003 \

 

# or 

$ ./run.sh

```

# LICENSE

MIT @hakobe