Share relay if subscriber is offline or slow

[jon4hz]

Hi,
I have a question regarding the zeromq implementation for the share relay. How exactly does the share relay (publisher) behave if the subscriber is offline or can't process the messages fast enough? Does the publisher build up a queue locally or are these shares going to the void?

[oliverw]

https://stackoverflow.com/a/16432160/88513

MC does not configure HWM so my assumption that offline subscribers are going to miss messages published in the meantime and the publisher does not queue up outbound messages.

[oliverw]

Fortunately I never ran into any such problems in years of running pools. ZMQ has been rock-solid.

[jon4hz]

The link you added mentions that ZMQ 3.0+ implements a default HWM. Which zmq version does miningcore use?

[oliverw]

Package libzmq5 on Linux. Some 4.x version on Windows for development.

[jon4hz]

Isn't v4.3.4 latest? According to the githib releases.

[oliverw]

https://packages.debian.org/bullseye/libzmq5