samerkv
Distributed key-value database for the Bradfield School of Computer Science distributed systems course (Fall 2020).
Instructions
First, start the synchronous follower replica in one shell:
go run ./cmd/server -type=syncfollower
Then, start the asynchronous follower replica in another shell:
go run ./cmd/server -type=asyncfollower
Then, start the leader replica in another shell:
go run ./cmd/server -type=leader
Finally, start a client in another shell:
go run ./cmd/client
You can issue the following commands:
get <key> # returns the value of the key, or the empty string if the key isn't set. uses the default table.
get <table>.<key> # returns the value in a given table
set <key>=<value> # sets key to value
set <table>.<key>=<value> # sets key to value in a given table
set *.<key>=<value> # sets key to a value in all tables
create_table <table> # creates a table
delete_table <table> # deletes a table
list_tables # lists tables
Every table comes with a default table, named "default". All get and set requests that don't specify a table operate on the default table. It's possible to delete the default table, but it's not possible to set a new table as the default.
Hacking
You need some grpc tooling installed locally to generate the protobufs.
brew install protoc
go get github.com/golang/protobuf/protoc-gen-go
go get google.golang.org/grpc/cmd/protoc-gen-go-grpc
See the grpc Go quickstart for more information.
Generate new protobuf scaffolding with make gen.
TODO
- Write tests