Kafka是一个由Apache软件基金会开发的开源流处理平台,它最初是作为分布式消息队列系统而设计的,但如今已经发展成为一个全面

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kafkaKafka是一个由Apache软件基金会开发的开源流处理平台,它最初是作为分布式消息队列系统而设计的,但如今已经发展成为一个全面的分布式事件流平台。以下是关于Kafka的详细介绍: 一、基本概念 定义:Kafka是一个高吞吐量的分布式发布订阅消息系统,由Scala和Java编写。它可以处理消费者在网站中的所有动作流数据,如网页浏览、搜索等。 架构:Kafka的架构包括生产者(Producer)、消费者(Consumer)、Broker(Kafka服务节点)和可选的Zookeeper集群(在Kafka 2.8.0及以后版本中,Zookeeper不再是必需的,Kafka可以通过KRaft进行集群管理)。 核心概念: Producer:负责发布消息到Kafka broker。 Consumer:从Kafka broker读取消息的客户端。 Consumer Group:由多个Consumer组成,组内每个Consumer负责消费不同分区的数据,一个分区只能由一个组内Consumer消费。 Broker:一个独立的Kafka服务节点或Kafka服务实例。 Topic:一个逻辑上的概

<link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/base.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/89740436/raw.css" rel="stylesheet"/><div id="sidebar" style="display: none"><div id="outline"></div></div><div class="pf w0 h0" data-page-no="1" id="pf1"><div class="pc pc1 w0 h0"><img alt="" class="bi x0 y0 w1 h1" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/89740436/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">Kafka<span class="_"> </span><span class="ff2">是一个由<span class="_ _0"> </span></span>Apache<span class="_"> </span><span class="ff2">软件基金会开发的开源流处理平台,它最初是作为分布式消息</span></div><div class="t m0 x1 h2 y2 ff2 fs0 fc0 sc0 ls0 ws0">队列系统而设计的,但如今已经发展成为一个全面的分布式事件流平台。以下是关于</div><div class="t m0 x1 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">Kafka<span class="_"> </span><span class="ff2">的详细介绍:</span></div><div class="t m0 x1 h3 y4 ff3 fs1 fc0 sc1 ls0 ws0">一、基本概<span class="_ _1"></span>念</div><div class="t m0 x2 h2 y5 ff4 fs2 fc0 sc0 ls0 ws0">�<span class="_ _2"> </span><span class="ff3 fs0 sc1">定义<span class="ff2 sc0">:<span class="ff5">Kafka<span class="_ _3"> </span></span>是一个高吞吐量的分布式发布订阅消息系统,由<span class="_ _0"> </span><span class="ff5">Scala<span class="_ _3"> </span></span>和<span class="_ _0"> </span><span class="ff5">Java<span class="_ _3"> </span></span>编写。它</span></span></div><div class="t m0 x1 h2 y6 ff2 fs0 fc0 sc0 ls0 ws0">可以处理消费者在网站中的所有动作流数据,如网页浏览、搜索等。</div><div class="t m0 x2 h2 y7 ff4 fs2 fc0 sc0 ls0 ws0">�<span class="_ _2"> </span><span class="ff3 fs0 sc1">架构<span class="ff2 sc0">:<span class="ff5">Kafka<span class="_ _3"> </span></span>的架构包括生产者(<span class="ff5">Producer</span>)、消费者(<span class="ff5">Consumer</span>)、<span class="ff5">Broker</span>(<span class="ff5">Kafka</span></span></span></div><div class="t m0 x1 h2 y8 ff2 fs0 fc0 sc0 ls0 ws0">服务节点)和可选的<span class="_ _0"> </span><span class="ff5">Zookeeper<span class="_ _3"> </span></span>集群(在<span class="_ _0"> </span><span class="ff5">Kafka 2.8.0<span class="_ _3"> </span></span>及以后版本中,<span class="ff5">Zookeeper<span class="_ _3"> </span></span>不再</div><div class="t m0 x1 h2 y9 ff2 fs0 fc0 sc0 ls0 ws0">是必需的,<span class="ff5">Kafka<span class="_ _3"> </span></span>可以通过<span class="_ _0"> </span><span class="ff5">KRaft<span class="_ _3"> </span></span>进行集群管理)。</div><div class="t m0 x2 h2 ya ff4 fs2 fc0 sc0 ls0 ws0">�<span class="_ _2"> </span><span class="ff3 fs0 sc1">核心概念<span class="ff2 sc0">:</span></span></div><div class="t m0 x3 h2 yb ff6 fs2 fc0 sc0 ls0 ws0">o<span class="_ _2"> </span><span class="ff7 fs0">Producer<span class="ff2">:负责发布消息到<span class="_ _0"> </span><span class="ff5">Kafka broker</span>。</span></span></div><div class="t m0 x3 h2 yc ff6 fs2 fc0 sc0 ls0 ws0">o<span class="_ _2"> </span><span class="ff7 fs0">Consumer<span class="ff2">:从<span class="_ _0"> </span><span class="ff5">Kafka broker<span class="_ _3"> </span></span>读取消息的客户端。</span></span></div><div class="t m0 x3 h2 yd ff6 fs2 fc0 sc0 ls0 ws0">o<span class="_ _2"> </span><span class="ff7 fs0">Consumer Group<span class="ff2">:由多个<span class="_ _0"> </span><span class="ff5">Consumer<span class="_ _3"> </span></span>组成,组内每个<span class="_ _0"> </span><span class="ff5">Consumer<span class="_ _3"> </span></span>负责消费不同分区的</span></span></div><div class="t m0 x4 h2 ye ff2 fs0 fc0 sc0 ls0 ws0">数据,一个分区只能由一个组内<span class="_ _0"> </span><span class="ff5">Consumer<span class="_ _3"> </span></span>消费。</div><div class="t m0 x3 h2 yf ff6 fs2 fc0 sc0 ls0 ws0">o<span class="_ _2"> </span><span class="ff7 fs0">Broker<span class="ff2">:一个独立的<span class="_ _0"> </span><span class="ff5">Kafka<span class="_ _3"> </span></span>服务节点或<span class="_ _0"> </span><span class="ff5">Kafka<span class="_ _3"> </span></span>服务实例。</span></span></div><div class="t m0 x3 h2 y10 ff6 fs2 fc0 sc0 ls0 ws0">o<span class="_ _2"> </span><span class="ff7 fs0">Topic<span class="ff2">:一个逻辑上的概念,包含多个<span class="_ _0"> </span><span class="ff5">Partition</span>,用于区分不同的消息类型。</span></span></div><div class="t m0 x3 h2 y11 ff6 fs2 fc0 sc0 ls0 ws0">o<span class="_ _2"> </span><span class="ff7 fs0">Partition<span class="ff2">:物理上的概念,每个<span class="_ _0"> </span><span class="ff5">Topic<span class="_ _3"> </span></span>可以包含多个<span class="_ _0"> </span><span class="ff5">Partition</span>,每个<span class="_ _0"> </span><span class="ff5">Partition<span class="_ _3"> </span></span>是一个</span></span></div><div class="t m0 x4 h2 y12 ff2 fs0 fc0 sc0 ls0 ws0">有序的队列。</div><div class="t m0 x3 h2 y13 ff6 fs2 fc0 sc0 ls0 ws0">o<span class="_ _2"> </span><span class="ff7 fs0">Replica<span class="ff2">:副本,一个<span class="_ _0"> </span><span class="ff5">Topic<span class="_ _3"> </span></span>的每个<span class="_ _0"> </span><span class="ff5">Partition<span class="_ _3"> </span></span>都有若干个<span class="_ _0"> </span><span class="ff5">Replica</span>,用于保证数据的可靠</span></span></div><div class="t m0 x4 h2 y14 ff2 fs0 fc0 sc0 ls0 ws0">性和容错性。</div></div><div class="pi" data-data='{"ctm":[1.611639,0.000000,0.000000,1.611639,0.000000,0.000000]}'></div></div>
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