about single node

[web3creator]

If I start a node and set it as leader, will there be any problems if the node keeps running?

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[drmingdrmer]

No problem at all.

It's quite typical to initiate a cluster with a single node for testing purposes.

Are there any specific concerns you have in mind?

[web3creator]

@drmingdrmer Thank you very much for your patient answer.
I have a cluster and need to start many work node,I have the following two options
1: Add these nodes to the cluster as learners
2: Each of these work nodes starts the raft service independently.Synchronize data via rpc,These work nodes will execute raft::new()raft::initialize(self.node.id),Will this work well even if it is shut down and restarted?

[drmingdrmer]

Starting a single node and adding the others as learners would be better.

Restart should not affect anything about persisted data:
If you correctly implement the storage layer, the RaftStorage, by persisting data before returning in every method, the data should remain intact during shutdown and restart processes. This ensures that no data is lost or damaged in such scenarios.

[web3creator]

@drmingdrmer If 200(possibly more) learner nodes are added to a cluster, will there be any change in performance compared to no increase?

[drmingdrmer]

In that case, the impact on performance will be significant.

All replications are transmitted from the Leader to Followers/Learners, placing the Leader under a comparatively high workload.