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KnowStreaming/docs/zh/Kafka分享/Kafka服务端_消费组协调器/Kafka服务端_消费组协调器.md
leewei 469baad65b Add km module kafka
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Kafka-GroupCoordinator 详解

[TOC]

1、GroupCoordinator介绍

1.1、功能介绍

1.2、相关请求

// 消费offset提交 & 消费offset获取
case ApiKeys.OFFSET_COMMIT => handleOffsetCommitRequest(request)
case ApiKeys.OFFSET_FETCH => handleOffsetFetchRequest(request)

// 获取coordinator, 包括group-coordinator 和 transaction-coordinator
case ApiKeys.FIND_COORDINATOR => handleFindCoordinatorRequest(request)

case ApiKeys.JOIN_GROUP => handleJoinGroupRequest(request)
case ApiKeys.HEARTBEAT => handleHeartbeatRequest(request)
case ApiKeys.LEAVE_GROUP => handleLeaveGroupRequest(request)
case ApiKeys.SYNC_GROUP => handleSyncGroupRequest(request)
case ApiKeys.DESCRIBE_GROUPS => handleDescribeGroupRequest(request)
case ApiKeys.LIST_GROUPS => handleListGroupsRequest(request)
case ApiKeys.OFFSET_FOR_LEADER_EPOCH => handleOffsetForLeaderEpochRequest(request)
case ApiKeys.DELETE_GROUPS => handleDeleteGroupsRequest(request)
case ApiKeys.OFFSET_DELETE => handleOffsetDeleteRequest(request)

2、