Why kafka-transactions abort requires topic and partition?

I don't understand why the kafka-transactions cli requires a topic and partition when a tx could be spawning not only across multiple partitions but topics. BTW, when I list the transactions with kafka-transactions list I'm getting some with state EMPTY, this means the transaction was started by a

How to avoid Kafka latency spikes caused by log segment flush

Hi, we're experiencing a big latency spikes (two orders of magnitude) on 99th percentile in our Kafka deployment. We googled a bit and found that this is pretty well documented phenomenon: https://issues.apache.org/jira/browse/KAFKA-9693 In the ticket, suggested "solution" is disabling log