Kafka(三) CenterOs安裝jdk,zookeeper,kafka以及相關配置

一.安裝zookeeper

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1. 在線下載zookeeper 

   wget http://mirror.bit.edu.cn/apache/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz

2. 解壓該壓縮包

   tar -zxvf zookeeper-3.4.14.tar.gz

3.  啓動zookeeper

   1.在zookeeper的目錄中找到bin這個目錄，zookeeper啓動腳本就在這裏。
   查看都有什麼命令
   bin/zkServer.sh
   啓動
   bin/zkServer.sh start

   注意：默認的/bin/../conf/zoo_sample.cfg,我們需要把這個文件重命名爲zoo.cfg，不然啓動不成功

   重命名
   mv zoo_sample.cfg zoo.cfg

    

4. 查看啓動是否成功，如下圖表示已經啓動成功

5. 需要知道的zookeeper配置信息：

• # The number of milliseconds of each tick
  #zk服務器的心跳時間
  tickTime=2000
  # The number of ticks that the initial
  # synchronization phase can take
  #投票選舉新leader的初始化時間
  initLimit=10
  # The number of ticks that can pass between
  # sending a request and getting an acknowledgement
  #
  syncLimit=5
  # the directory where the snapshot is stored.
  # do not use /tmp for storage, /tmp here is just
  # example sakes.
  #數據目錄
  dataDir=/tmp/zookeeper
  # the port at which the clients will connect
  #zk對外服務端口
  clientPort=2181
  # the maximum number of client connections.
  # increase this if you need to handle more clients
  #maxClientCnxns=60
  #
  # Be sure to read the maintenance section of the
  # administrator guide before turning on autopurge.
  #
  # http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
  #
  # The number of snapshots to retain in dataDir
  #autopurge.snapRetainCount=3
  # Purge task interval in hours
  # Set to "0" to disable auto purge feature
  #autopurge.purgeInterval=1

linux下載安裝zookeeper更詳細地址

二.安裝kafka

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• 下載kafka

• wget https://mirror.bit.edu.cn/apache/kafka/2.4.1/kafka_2.13-2.4.1.tgz

• 解壓

• tar -zxvf kafka_2.13-2.4.1.tgz

• 修改配置

• #表示broker的編號，如果集羣中有多個broker,那麼broker的編號需要設置的不同。
  broker.id=0
  #對外提供的服務入口地址
  listeners=PLAINTEXT://9092 brooder,
  #設置存放消息日誌的文件地址
  log.dirs=/tmp/kafka/log
  #kafka所需要的zookeeper集羣地址：
  zookeeper.connet=ip:2181
  

• 啓動

  bin/kafka-server-start.sh start config/server.properties 

  缺點：console關閉後，kafka也會被關閉，換爲後臺啓動就可以了

• 後臺啓動

•  bin/kafka-server-start.sh -daemon config/server.properties