NATs cluster replication ready state

[Veselin Kantsev]

Hello,

I'm investigating a case where new nodes joining a cluster might advertise Ready state too early.

Generally speaking, when does tcp/4222 start accepting requests on a new node joining a cluster?

Is it only after the node has fully synced up with the cluster or whilst it is syncing as well?

In my case, the NATs nodes are behind a Load Balancer, which uses a health-check on tcp/4222 to mark a node as Ready and start forwarding client requests to it, thus I'm trying to ensure that node is indeed Ready, i.e. has the cluster data synced and ready to serve.

Regards,

Veselin 

[derek]

Does this involve JetStream?

Generally you could wait for /healthz monitoring endpoint to return 200 - OK before allowing the load balancer to direct traffic to the server.

[Veselin Kantsev]

Thank you for the prompt response Derek,

Yes, JetStream is enabled.

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