# Node Management

Focusing on building a robust system to register, monitor, and manage nodes.

**Node Management Workflow**

* Node Registration: Each node registers itself with the cluster when it starts.
* Heartbeat Mechanism: Nodes send periodic health checks to the cluster manager or peers.
* Failure Detection: Identify and mark failed nodes.
* Metadata Management: Maintain a dynamic list of active nodes. Rebalancing Trigger: Respond to node addition or removal.

**Components to Implement (Current Scope):**

**Node Metadata:**

* Store: Store information about each node (e.g., ID, IP, status, capacity).
* Use an in-memory database (e.g., Redis) or a distributed store (e.g., etcd).

**Node Registration API:** 

* Nodes register themselves with the cluster manager.
* Store metadata in the metadata store.

**Health Monitoring:** 

* Nodes periodically send heartbeats to report their status. If a node misses multiple heartbeats, it is marked as failed.

**Rebalancing:** 

* Tasks/data are automatically redistributed when a node is added or removed.

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**Future Scope:**

* **Rebalancing**: Implement data redistribution logic on node failure.
* **UI/CLI**: Create a tool to visualize and manage nodes.

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