vyzo

note that there is no retransmission whatsoever in pubsub; also note that the messages are propagated normally, they are just dropped at delivery.

Are you running the receiver in separate goroutines?

what is your message rate? it may be that your computer is too slow.

there might be something else at play, are you receiving _any_ messages? Maybe your receiver goroutines are not running at all.

Also, re: drop messages: there has to be a throttle somewhere, we can't buffer an infinite number of messages.

there is currently no way to specify the subscription buffer size.

You can make a pr to make the buffer capacity configurable perhaps, but this is not the solution long term. How many nodes are you running in the single computer?

that's weird, it's not a lot of nodes.

is there any delay between message transmission, or are you sending as fast as you can?

can you add a small delay before transmitting consecutive messages?