Kafka DescribeProducers Request Wire Format v0 — Binary Protocol Layout

What is DescribeProducers?

Shows active producer sessions on a partition via kafka-transactions.sh --describe-producers, including producer ID, epoch, and last sequence number. Helps diagnose zombie producers (old producer ID still active) or duplicate sequence errors.

Schema
{
  "Topics": [{
      "Name": string,
      "PartitionIndexes": [int32]
  }]
}

Example
{
  "Topics": [{
      "Name": "orders",
      "PartitionIndexes": [1, 2, 3]
  }]
}