Add BrokerConnection.connect_blocking() #1411
Merged
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This PR adds a blocking connect to BrokerConnection that will attempt to connect to all ip/ports found via a single dns lookup. We can use this during bootstrap and version probes to handle brokers that advertise a hostname that has multiple interfaces but the broker only listens on one of them. This can happen when a host has both an IPv4 and an IPv6 interface (but the kafka broker binds to only one of them). This will also help in contexts where the bootstrap_servers list includes a multi-address dns entry where not all results are available/healthy.