I've tried to run mirrormaker tools in async mode and I get WARN Produce request with correlation id 263 failed due to [benchmark1,30]: kafka.common.MessageSizeTooLargeException (kafka.producer.async.DefaultEventHandler)
I don't get error in sync mode. My message.max.bytes is default (1000000). As I understand the difference between sync and async mode is that async collects batches before sending. Does it mean that batch should be less than message.max.bytes, or any single message within batch should be less than that. Thanks.