AlterPartitionReassignments
This page encodes the smallest legal instance of the request and the response: numeric fields are zero, strings and byte arrays are empty, every array carries exactly one sample element, and any records field holds one empty 61-byte RecordBatch v2. Version 0 is a flexible version, so every struct is terminated by a uvarint tagged-field count and strings and arrays carry compact length-plus-one prefixes. Sizes below include the leading int32 size prefix.
- API key
- 45
- Encoded at
- v0
- Flexible versions
- 0+
- Headers
- req v2, resp v1
- Request versions
- 0
- Response versions
- 0
- Request size
- 34 bytes
- Response size
- 29 bytes
framerpc headerrequest bodyRecordBatchRecordresponse bodytagged_fields
Request
AlterPartitionReassignmentsRequest v0, request header v2, 34 bytes on the wire
byte layout (34 bytes, 16 bytes per row)
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object tree
AlterPartitionReassignmentsRequest message v0 [0x0000, 34B] +-- Frame [0x0000, 4B] length-delimited framing | +-- size int32 = 30 [0x0000, 4B] number of bytes that follow, patched after encoding +-- RequestHeader v2 [0x0004, 11B] common request header | +-- request_api_key int16 = 45 (AlterPartitionReassignments) [0x0004, 2B] numeric id of the API being invoked | +-- request_api_version int16 = 0 [0x0006, 2B] version of the API being invoked | +-- correlation_id int32 = 0 [0x0008, 4B] echoed back by the broker in the response | +-- client_id nullable_string = "" (int16 len=0) [0x000c, 2B] always a non-flexible int16-prefixed string | +-- tagged_fields uvarint = 0 [0x000e, 1B] number of tagged fields in the header +-- AlterPartitionReassignmentsRequest struct [0x000f, 19B] message body, version 0 +-- TimeoutMs int32 = 0 [0x000f, 4B] The time in ms to wait for the request to complete. +-- Topics []ReassignableTopic = 1 element [0x0013, 14B] The topics to reassign. | +-- length uvarint = 2 (compact, n+1) [0x0013, 1B] one sample element follows | +-- ReassignableTopic[0] ReassignableTopic = struct [0x0014, 13B] | +-- Name string = "" (compact, len+1=1) [0x0014, 1B] The topic name. | +-- Partitions []ReassignablePartition = 1 element [0x0015, 11B] The partitions to reassign. | | +-- length uvarint = 2 (compact, n+1) [0x0015, 1B] one sample element follows | | +-- ReassignablePartition[0] ReassignablePartition = struct [0x0016, 10B] | | +-- PartitionIndex int32 = 0 [0x0016, 4B] The partition index. | | +-- Replicas []int32 = 1 element [0x001a, 5B] The replicas to place the partitions on, or null to cancel a pending reassi... | | | +-- length uvarint = 2 (compact, n+1) [0x001a, 1B] one sample element follows | | | +-- int32[0] int32 = 0 [0x001b, 4B] | | +-- tagged_fields uvarint = 0 [0x001f, 1B] number of tagged fields in this struct | +-- tagged_fields uvarint = 0 [0x0020, 1B] number of tagged fields in this struct +-- tagged_fields uvarint = 0 [0x0021, 1B] number of tagged fields in this struct
kafka message schema (.json)
{ "apiKey": 45, "type": "request", "listeners": ["broker", "controller"], "name": "AlterPartitionReassignmentsRequest", "validVersions": "0", "flexibleVersions": "0+", "fields": [ { "name": "TimeoutMs", "type": "int32", "versions": "0+", "default": "60000", "about": "The time in ms to wait for the request to complete." }, { "name": "Topics", "type": "[]ReassignableTopic", "versions": "0+", "about": "The topics to reassign.", "fields": [ { "name": "Name", "type": "string", "versions": "0+", "entityType": "topicName", "about": "The topic name." }, { "name": "Partitions", "type": "[]ReassignablePartition", "versions": "0+", "about": "The partitions to reassign.", "fields": [ { "name": "PartitionIndex", "type": "int32", "versions": "0+", "about": "The partition index." }, { "name": "Replicas", "type": "[]int32", "versions": "0+", "nullableVersions": "0+", "default": "null", "entityType": "brokerId", "about": "The replicas to place the partitions on, or null to cancel a pending reassignment for this partition." } ]} ]} ] }
Response
AlterPartitionReassignmentsResponse v0, response header v1, 29 bytes on the wire
byte layout (29 bytes, 16 bytes per row)
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object tree
AlterPartitionReassignmentsResponse message v0 [0x0000, 29B] +-- Frame [0x0000, 4B] length-delimited framing | +-- size int32 = 25 [0x0000, 4B] number of bytes that follow, patched after encoding +-- ResponseHeader v1 [0x0004, 5B] common response header | +-- correlation_id int32 = 0 [0x0004, 4B] matches the correlation_id of the request | +-- tagged_fields uvarint = 0 [0x0008, 1B] number of tagged fields in the header +-- AlterPartitionReassignmentsResponse struct [0x0009, 20B] message body, version 0 +-- ThrottleTimeMs int32 = 0 [0x0009, 4B] The duration in milliseconds for which the request was throttled due to a q... +-- ErrorCode int16 = 0 [0x000d, 2B] The top-level error code, or 0 if there was no error. +-- ErrorMessage string = "" (compact, len+1=1) [0x000f, 1B] The top-level error message, or null if there was no error. +-- Responses []ReassignableTopicResponse = 1 element [0x0010, 12B] The responses to topics to reassign. | +-- length uvarint = 2 (compact, n+1) [0x0010, 1B] one sample element follows | +-- ReassignableTopicResponse[0] ReassignableTopicResponse = struct [0x0011, 11B] | +-- Name string = "" (compact, len+1=1) [0x0011, 1B] The topic name. | +-- Partitions []ReassignablePartitionResponse = 1 element [0x0012, 9B] The responses to partitions to reassign. | | +-- length uvarint = 2 (compact, n+1) [0x0012, 1B] one sample element follows | | +-- ReassignablePartitionResponse[0] ReassignablePartitionResponse = struct [0x0013, 8B] | | +-- PartitionIndex int32 = 0 [0x0013, 4B] The partition index. | | +-- ErrorCode int16 = 0 [0x0017, 2B] The error code for this partition, or 0 if there was no error. | | +-- ErrorMessage string = "" (compact, len+1=1) [0x0019, 1B] The error message for this partition, or null if there was no error. | | +-- tagged_fields uvarint = 0 [0x001a, 1B] number of tagged fields in this struct | +-- tagged_fields uvarint = 0 [0x001b, 1B] number of tagged fields in this struct +-- tagged_fields uvarint = 0 [0x001c, 1B] number of tagged fields in this struct
kafka message schema (.json)
{ "apiKey": 45, "type": "response", "name": "AlterPartitionReassignmentsResponse", "validVersions": "0", "flexibleVersions": "0+", "fields": [ { "name": "ThrottleTimeMs", "type": "int32", "versions": "0+", "about": "The duration in milliseconds for which the request was throttled due to a quota violation, or zero if the request did not violate any quota." }, { "name": "ErrorCode", "type": "int16", "versions": "0+", "about": "The top-level error code, or 0 if there was no error." }, { "name": "ErrorMessage", "type": "string", "versions": "0+", "nullableVersions": "0+", "about": "The top-level error message, or null if there was no error." }, { "name": "Responses", "type": "[]ReassignableTopicResponse", "versions": "0+", "about": "The responses to topics to reassign.", "fields": [ { "name": "Name", "type": "string", "versions": "0+", "entityType": "topicName", "about": "The topic name." }, { "name": "Partitions", "type": "[]ReassignablePartitionResponse", "versions": "0+", "about": "The responses to partitions to reassign.", "fields": [ { "name": "PartitionIndex", "type": "int32", "versions": "0+", "about": "The partition index." }, { "name": "ErrorCode", "type": "int16", "versions": "0+", "about": "The error code for this partition, or 0 if there was no error." }, { "name": "ErrorMessage", "type": "string", "versions": "0+", "nullableVersions": "0+", "about": "The error message for this partition, or null if there was no error." } ]} ]} ] }