Hi, I'm writing new client library for kafka and I cannot find information about atomicity of message set publishing. I'm implementing protocol described on wiki [1]. According to documentation, it is possible to send within single request more than one message - message set for any partition. In response, there is error code for every partition separately. Does this mean, that while writing messages to different partitions can fail, writing multiple messages to one partition as message set is atomic and can either fail or succeed for all of them?
[1] https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol
