AlterReplicaLogDirs
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 2 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
- 34
- Encoded at
- v2
- Flexible versions
- 2+
- Headers
- req v2, resp v1
- Request versions
- 1-2
- Response versions
- 1-2
- Request size
- 27 bytes
- Response size
- 25 bytes
framerpc headerrequest bodyRecordBatchRecordresponse bodytagged_fields
Request
AlterReplicaLogDirsRequest v2, request header v2, 27 bytes on the wire
byte layout (27 bytes, 16 bytes per row)
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AlterReplicaLogDirsRequest message v2 [0x0000, 27B] +-- Frame [0x0000, 4B] length-delimited framing | +-- size int32 = 23 [0x0000, 4B] number of bytes that follow, patched after encoding +-- RequestHeader v2 [0x0004, 11B] common request header | +-- request_api_key int16 = 34 (AlterReplicaLogDirs) [0x0004, 2B] numeric id of the API being invoked | +-- request_api_version int16 = 2 [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 +-- AlterReplicaLogDirsRequest struct [0x000f, 12B] message body, version 2 +-- Dirs []AlterReplicaLogDir = 1 element [0x000f, 11B] The alterations to make for each directory. | +-- length uvarint = 2 (compact, n+1) [0x000f, 1B] one sample element follows | +-- AlterReplicaLogDir[0] AlterReplicaLogDir = struct [0x0010, 10B] | +-- Path string = "" (compact, len+1=1) [0x0010, 1B] The absolute directory path. | +-- Topics []AlterReplicaLogDirTopic = 1 element [0x0011, 8B] The topics to add to the directory. | | +-- length uvarint = 2 (compact, n+1) [0x0011, 1B] one sample element follows | | +-- AlterReplicaLogDirTopic[0] AlterReplicaLogDirTopic = struct [0x0012, 7B] | | +-- Name string = "" (compact, len+1=1) [0x0012, 1B] The topic name. | | +-- Partitions []int32 = 1 element [0x0013, 5B] The partition indexes. | | | +-- length uvarint = 2 (compact, n+1) [0x0013, 1B] one sample element follows | | | +-- int32[0] int32 = 0 [0x0014, 4B] | | +-- tagged_fields uvarint = 0 [0x0018, 1B] number of tagged fields in this struct | +-- tagged_fields uvarint = 0 [0x0019, 1B] number of tagged fields in this struct +-- tagged_fields uvarint = 0 [0x001a, 1B] number of tagged fields in this struct
kafka message schema (.json)
{ "apiKey": 34, "type": "request", "listeners": ["broker"], "name": "AlterReplicaLogDirsRequest", // Version 0 was removed in Apache Kafka 4.0, Version 1 is the new baseline. // // Version 1 is the same as version 0. // Version 2 enables flexible versions. "validVersions": "1-2", "flexibleVersions": "2+", "fields": [ { "name": "Dirs", "type": "[]AlterReplicaLogDir", "versions": "0+", "about": "The alterations to make for each directory.", "fields": [ { "name": "Path", "type": "string", "versions": "0+", "mapKey": true, "about": "The absolute directory path." }, { "name": "Topics", "type": "[]AlterReplicaLogDirTopic", "versions": "0+", "about": "The topics to add to the directory.", "fields": [ { "name": "Name", "type": "string", "versions": "0+", "mapKey": true, "entityType": "topicName", "about": "The topic name." }, { "name": "Partitions", "type": "[]int32", "versions": "0+", "about": "The partition indexes." } ]} ]} ] }
Response
AlterReplicaLogDirsResponse v2, response header v1, 25 bytes on the wire
byte layout (25 bytes, 16 bytes per row)
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AlterReplicaLogDirsResponse message v2 [0x0000, 25B] +-- Frame [0x0000, 4B] length-delimited framing | +-- size int32 = 21 [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 +-- AlterReplicaLogDirsResponse struct [0x0009, 16B] message body, version 2 +-- ThrottleTimeMs int32 = 0 [0x0009, 4B] Duration in milliseconds for which the request was throttled due to a quota... +-- Results []AlterReplicaLogDirTopicResult = 1 element [0x000d, 11B] The results for each topic. | +-- length uvarint = 2 (compact, n+1) [0x000d, 1B] one sample element follows | +-- AlterReplicaLogDirTopicResult[0] AlterReplicaLogDirTopicResult = struct [0x000e, 10B] | +-- TopicName string = "" (compact, len+1=1) [0x000e, 1B] The name of the topic. | +-- Partitions []AlterReplicaLogDirPartitionResult = 1 element [0x000f, 8B] The results for each partition. | | +-- length uvarint = 2 (compact, n+1) [0x000f, 1B] one sample element follows | | +-- AlterReplicaLogDirPartitionResult[0] AlterReplicaLogDirPartitionResult = struct [0x0010, 7B] | | +-- PartitionIndex int32 = 0 [0x0010, 4B] The partition index. | | +-- ErrorCode int16 = 0 [0x0014, 2B] The error code, or 0 if there was no error. | | +-- tagged_fields uvarint = 0 [0x0016, 1B] number of tagged fields in this struct | +-- tagged_fields uvarint = 0 [0x0017, 1B] number of tagged fields in this struct +-- tagged_fields uvarint = 0 [0x0018, 1B] number of tagged fields in this struct
kafka message schema (.json)
{ "apiKey": 34, "type": "response", "name": "AlterReplicaLogDirsResponse", // Version 0 was removed in Apache Kafka 4.0, Version 1 is the new baseline. // Starting in version 1, on quota violation brokers send out responses before throttling. // Version 2 enables flexible versions. "validVersions": "1-2", "flexibleVersions": "2+", "fields": [ { "name": "ThrottleTimeMs", "type": "int32", "versions": "0+", "about": "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": "Results", "type": "[]AlterReplicaLogDirTopicResult", "versions": "0+", "about": "The results for each topic.", "fields": [ { "name": "TopicName", "type": "string", "versions": "0+", "entityType": "topicName", "about": "The name of the topic." }, { "name": "Partitions", "type": "[]AlterReplicaLogDirPartitionResult", "versions": "0+", "about": "The results for each partition.", "fields": [ { "name": "PartitionIndex", "type": "int32", "versions": "0+", "about": "The partition index."}, { "name": "ErrorCode", "type": "int16", "versions": "0+", "about": "The error code, or 0 if there was no error." } ]} ]} ] }