simply about difficult
Suppose you just run into this exception, saying that gRPC cannot assign requested address: TL;DR: most likely you opened too many connections, and you run out of ephemeral ports. Consider channel/stub reuse: https://mchesnavsky.tech/grpc-channel-stub-reuse. Details: first, we should distinguish between fixed ports, and ephemeral ports. Ephemeral ports are typically used by client devices initiating communication with […]
READ MORECreating new gRPC channels and stubs involves establishing connections and negotiating capabilities with the server. Reusing them eliminates this overhead for subsequent calls. By keeping connections alive, you avoid the initial handshake delay for each RPC, leading to faster communication. However, you should ensure that reusing the channel doesn’t create a bottleneck in your application. […]
READ MORELet’s suppose that you need configure a TCP server in Spring / Spring Boot application. We will make it that the server prints the client’s request on the screen, then sends a response to the client. First, let’s include the spring-integration-ip dependency. In Maven it will look like this: Like gRPC ideology, in this case […]
READ MOREFirst, let’s figure out how the timeout differs from the deadline. Timeout is relative value, but deadline is absolute. If we take a timeout and a deadline of 5 seconds, and we will write the following line (the code for an example, it will not work if you run it): Then, if you want to […]
READ MOREImagine you are faced with an error like this: The point is that if you create a gRPC channel, you must close it after use. Let’s say you’ve already made a channel like this: After use, it will need to be closed. It is important to wait until it closes; awaitTermination() is used for this:
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