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Kafka ListPartitionReassignments Response Wire Format v0 — Binary Protocol Layout

What is ListPartitionReassignments?

Checks reassignment progress via kafka-reassign-partitions.sh --verify. Shows current, adding, and removing replica sets per partition. When addingReplicas and removingReplicas are both empty, the reassignment is complete.

Wire Diagram

Response Header · flexible
message_size int32 · 4B
correlation_id int32 · 4B
tagged var
ListPartitionReassignmentsResponse v0
ThrottleTimeMs int32 · 4B
ErrorCode int16 · 2B
ErrorMessage? string (compact)
Topics array
tagged var
Name string (compact)
Partitions array
tagged var
PartitionIndex int32 · 4B
Replicas []int32
AddingReplicas []int32
RemovingReplicas []int32
tagged var

Schema & Example

Schema
{
  "ThrottleTimeMs": int32,
  "ErrorCode": int16,
  "ErrorMessage": string?,
  "Topics": [{
      "Name": string,
      "Partitions": [{
          "PartitionIndex": int32,
          "Replicas": [int32],
          "AddingReplicas": [int32],
          "RemovingReplicas": [int32]
      }]
  }]
}
Example
{
  "ThrottleTimeMs": 0,
  "ErrorCode": 0,
  "ErrorMessage": "NETWORK_EXCEPTION",
  "Topics": [{
      "Name": "orders",
      "Partitions": [{
          "PartitionIndex": 3,
          "Replicas": [0, 1, 2],
          "AddingReplicas": [0, 1, 2],
          "RemovingReplicas": [0, 1, 2]
      }]
  }]
}