Kafka Indexing Task - All Replica Tasks Succeed

Hi Guys

I have 3 * r3.2xlarge machines deployed with druid cluster. Each machine hosts an ephemeral disk and hosts the middle manager. I have a kafka indexing task over a topic with 2 partitions.

My task count is: 2 and there are 2 replicas. Therefore 4 tasks in total that run with taskDuration set to 30 minutes.

However all tasks succeed all the time? My understanding was one of the replicas should succeed and the other should fail to push the segments? What am I failing to understand?

Thanks

Best Regards

Varaga