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// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You under the Apache License, Version 2.0
// (the "License"); you may not use this file except in compliance with
// the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
{
"apiKey": 68,
"type": "request",
"listeners": ["zkBroker", "broker"],
"name": "ConsumerGroupHeartbeatRequest",
// The ConsumerGroupHeartbeat API is added as part of KIP-848 and is still
// under development. Hence, the API is not exposed by default by brokers
// unless explicitly enabled.
"latestVersionUnstable": true,
"validVersions": "0",
"flexibleVersions": "0+",
"fields": [
{ "name": "GroupId", "type": "string", "versions": "0+", "entityType": "groupId",
"about": "The group identifier." },
{ "name": "MemberId", "type": "string", "versions": "0+",
"about": "The member id generated by the coordinator. The member id must be kept during the entire lifetime of the member." },
{ "name": "MemberEpoch", "type": "int32", "versions": "0+",
"about": "The current member epoch; 0 to join the group; -1 to leave the group; -2 to indicate that the static member will rejoin." },
{ "name": "InstanceId", "type": "string", "versions": "0+", "nullableVersions": "0+", "default": "null",
"about": "null if not provided or if it didn't change since the last heartbeat; the instance Id otherwise." },
{ "name": "RackId", "type": "string", "versions": "0+", "nullableVersions": "0+", "default": "null",
"about": "null if not provided or if it didn't change since the last heartbeat; the rack ID of consumer otherwise." },
{ "name": "RebalanceTimeoutMs", "type": "int32", "versions": "0+", "default": -1,
"about": "-1 if it didn't chance since the last heartbeat; the maximum time in milliseconds that the coordinator will wait on the member to revoke its partitions otherwise." },
{ "name": "SubscribedTopicNames", "type": "[]string", "versions": "0+", "nullableVersions": "0+", "default": "null", "entityType": "topicName",
"about": "null if it didn't change since the last heartbeat; the subscribed topic names otherwise." },
{ "name": "SubscribedTopicRegex", "type": "string", "versions": "0+", "nullableVersions": "0+", "default": "null",
"about": "null if it didn't change since the last heartbeat; the subscribed topic regex otherwise" },
{ "name": "ServerAssignor", "type": "string", "versions": "0+", "nullableVersions": "0+", "default": "null",
"about": "null if not used or if it didn't change since the last heartbeat; the server side assignor to use otherwise." },
{ "name": "ClientAssignors", "type": "[]Assignor", "versions": "0+", "nullableVersions": "0+", "default": "null",
"about": "null if not used or if it didn't change since the last heartbeat; the list of client-side assignors otherwise.", "fields": [
{ "name": "Name", "type": "string", "versions": "0+",
"about": "The name of the assignor." },
{ "name": "MinimumVersion", "type": "int16", "versions": "0+",
"about": "The minimum supported version for the metadata." },
{ "name": "MaximumVersion", "type": "int16", "versions": "0+",
"about": "The maximum supported version for the metadata." },
{ "name": "Reason", "type": "int8", "versions": "0+",
"about": "The reason of the metadata update." },
{ "name": "MetadataVersion", "type": "int16", "versions": "0+",
"about": "The version of the metadata." },
{ "name": "MetadataBytes", "type": "bytes", "versions": "0+",
"about": "The metadata." }
]},
{ "name": "TopicPartitions", "type": "[]TopicPartitions", "versions": "0+", "nullableVersions": "0+", "default": "null",
"about": "null if it didn't change since the last heartbeat; the partitions owned by the member.", "fields": [
{ "name": "TopicId", "type": "uuid", "versions": "0+",
"about": "The topic ID." },
{ "name": "Partitions", "type": "[]int32", "versions": "0+",
"about": "The partitions." }
]}
]
}
