Install Go on your machine (https://golang.org/doc/install).
Clone the repository or create a new Go module.
Navigate to the project directory.go run main.go
go test -v
The CLI supports the following commands:
delete <key>: Deletes the key-value pair associated with the given key from the distributed key-value store.
replicate : Replicate function replicates data across nodes by iterating over the existing nodes (excluding the last one) and copying the key-value pairs.To start the CLI, run the following command:
go run main.go
After starting the CLI, you can enter commands:
> put name John
Key-value pair stored.
> get name
Value: John
> delete name
Key-value pair deleted.
> get name
Key not found.
> replicate
Node replicated.
The implementation consists of two main types: Node and DistributedStore.
The Node type represents a single node in the distributed key-value store. It contains a data map for storing key-value pairs. The GetValue, SetValue, and DeleteValue methods provide the functionality to retrieve, set, and delete key-value pairs from the node.
The DistributedStore type represents the distributed key-value store. It is responsible for managing multiple nodes and distributing key-value pairs among them. The AddNode method adds a new node to the distributed store. The GetNodeForKey method determines the node responsible for a given key based on a simple hashing algorithm. The Put, Get, and Delete methods interact with the appropriate node to perform the respective operations.
Note: Node Distribution is immplmented using single logic.If key = name and total nodes are 3 then len(4) % len(3) then nodeIndex to be inserted on is 1
The program's main function sets up the CLI. It creates a DistributedStore instance and adds a node to it. It then reads commands from the standard input, parses them, and performs the corresponding operations using the DistributedStore methods. The CLI supports the put, get, and delete commands as described earlier.