groupcache-practice

The practice for groupcache

Create the project use groupcache

Environments:

• based on custom slow database for test
• multiple cache nodes for HA

groupcache version

• Date: 2020-02-24
• Commit ID: 8c9f03a8e57eb486e42badaed3fb287da51807ba

Run step:

1. run database server

cd database && go run main.go

2. insert data into database

# insert one entry:
# key: name, value: zouying
curl -H "Content-Type: application/json" -X POST -d '{"key": "name", "value": "zouying"}' http://localhost:9000/set

# check insert
curl -H "Content-Type: application/json" -X POST -d '{"key": "name"}' http://localhost:9000/get

3. run frontend (include cache). Two node in cache cluster.

cd frontend

# run the first node
go run ./main.go -addr=":8001" -port ":18001"

# run the second node
go run ./main.go -addr=":8002" -port ":18002"

4. get the value, the first try will get from database

# try the first node api
curl -H "Content-Type: application/json" -X POST -d '{"key": "name"}' http://localhost:18001/get

# try the second node api
curl -H "Content-Type: application/json" -X POST -d '{"key": "name"}' http://localhost:18002/get