MinimumReproduceableLibrdkafkaTransactionBug

This repo recreates a librdkafka bug relating to failed transactions Steps to reproduce

1. Have kafka running on your localhost (or change connection settings in main.go)
2. go run main.go. This will create a topic called test and send 40 million messages to it and then exit without commiting them.
3. go run main.go -r This will eventually output an error like % ERROR: Topic test [0] error: Message at offset 37942000 might be too large to fetch, try increasing receive.message.max.bytes
4. kafkacat -C -b 127.0.0.1:9092 -t test -o 0. This will eventually output the same error