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View Code? Open in Web Editor NEWA minimalistic example of a gRPC long lived stream
A minimalistic example of a gRPC long lived stream
For example, server side has 2 instances, instance A and instance B. Then client side subscribe instance A, but the unsubscribe request hit instance B, how to handle this case gracefully ?
Listening to context.Done is important on the server side, as that is how the client disconnecting is communicated.
Without this, the server side resources are only freed when a disconnected client is about to receive a message (and depending on the use case that might be hours).
Nats Jetstream underneath would be maybe a nice match.
nats will push to the GRPC server instance and so no need for complex mutex aspects I am guessing.
nats Jetstream is also HA with each topic partitioned using RAFT and so a NATS node failure should in theory not interrupt anything
the nats cli includes Jetstream and makes it easy to simulate messages pumping into nats and GRPC responding.
will be trying It out but figured itβs worth making an issue about it
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