kafka集群加账号密码 kafka集群管理

一、ZooKeeper集群搭建

场景

真实的集群是需要部署在不同的服务器上的，但是在我们测试时同时启动十几个虚拟机内存会吃不消，所以这里我们搭建伪集群，也就是把所有的服务都搭建在一台虚拟机上，用端口进行区分。

我们这里要求搭建一个三个节点的Zookeeper集群（伪集群）。

安装JDK

集群目录

创建zookeeper-cluster目录，将解压后的Zookeeper复制到以下三个目录

itcast@Server-node:/mnt/d/zookeeper-cluster$ ll 
total 0 
drwxrwxrwx 1 dayuan dayuan 512 Jul 24 10:02 ./ 
drwxrwxrwx 1 dayuan dayuan 512 Aug 19 18:42 ../ 
drwxrwxrwx 1 dayuan dayuan 512 Jul 24 10:02 zookeeper-1/ 
drwxrwxrwx 1 dayuan dayuan 512 Jul 24 10:02 zookeeper-2/ 
drwxrwxrwx 1 dayuan dayuan 512 Jul 24 10:02 zookeeper-3/ 
itcast@Server-node:/mnt/d/zookeeper-cluster$

ClientPort设置

配置每一个Zookeeper 的dataDir（zoo.cfg） clientPort 分别为2181 2182 2183

# the port at which the clients will connect 
clientPort=2181

myid配置

在每个zookeeper的 data 目录下创建一个 myid 文件，内容分别是0、1、2 。这个文件就是记录每个服务器的ID

dayuan@MY-20190430BUDR:/mnt/d/zookeeper-cluster/zookeeper-1$ cat 
temp/zookeeper/data/myid 
0
dayuan@MY-20190430BUDR:/mnt/d/zookeeper-cluster/zookeeper-1$

zoo.cfg

在每一个zookeeper 的 zoo.cfg配置客户端访问端口（clientPort）和集群服务器IP列表。

dayuan@MY-20190430BUDR:/mnt/d/zookeeper-cluster/zookeeper-1$ cat conf/zoo.cfg 
# The number of milliseconds of each tick 
# zk服务器的心跳时间 
tickTime=2000 
# The number of ticks that the initial 
# synchronization phase can take 
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. 
#dataDir=/tmp/zookeeper 
dataDir=temp/zookeeper/data 
dataLogDir=temp/zookeeper/log 
# the port at which the clients will connect 
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 

server.0=127.0.0.1:2888:3888 
server.1=127.0.0.1:2889:3889 
server.2=127.0.0.1:2890:3890 
dayuan@MY-20190430BUDR:/mnt/d/zookeeper-cluster/zookeeper-1$

解释：server.服务器ID=服务器IP地址：服务器之间通信端口：服务器之间投票选举端口

启动集群

启动集群就是分别启动每个实例,启动后我们查询一下每个实例的运行状态

itcast@Server-node:/mnt/d/zookeeper-cluster/zookeeper-1$ bin/zkServer.sh status 
ZooKeeper JMX enabled by default 
Using config: /mnt/d/zookeeper-cluster/zookeeper-1/bin/../conf/zoo.cfg 
Mode: leader

itcast@Server-node:/mnt/d/zookeeper-cluster/zookeeper-2$ bin/zkServer.sh 
status ZooKeeper JMX enabled by default 
Using config: /mnt/d/zookeeper-cluster/zookeeper-2/bin/../conf/zoo.cfg 
Mode: follower

itcast@Server-node:/mnt/d/zookeeper-cluster/zookeeper-3$ bin/zkServer.sh 
status ZooKeeper JMX enabled by default 
Using config: /mnt/d/zookeeper-cluster/zookeeper-3/bin/../conf/zoo.cfg 
Mode: follower

二、Kafka集群搭建

集群目录

itcast@Server-node:/mnt/d/kafka-cluster$ ll 
total 0 
drwxrwxrwx 1 dayuan dayuan 512 Aug 28 18:15 ./ 
drwxrwxrwx 1 dayuan dayuan 512 Aug 19 18:42 ../ 
drwxrwxrwx 1 dayuan dayuan 512 Aug 28 18:39 kafka-1/ 
drwxrwxrwx 1 dayuan dayuan 512 Jul 24 14:02 kafka-2/ 
drwxrwxrwx 1 dayuan dayuan 512 Jul 24 14:02 kafka-3/ 
drwxrwxrwx 1 dayuan dayuan 512 Aug 28 18:15 kafka-4/ 
itcast@Server-node:/mnt/d/kafka-cluster$

server.properties

# broker 编号，集群内必须唯一
broker.id=1
# host 地址
host.name=127.0.0.1
# 端口 
port=9092
# 消息日志存放地址
log.dirs=/tmp/kafka/log/cluster/log3
# ZooKeeper 地址，多个用,分隔
zookeeper.connect=localhost:2181,localhost:2182,localhost:2183

启动集群

分别通过 cmd 进入每个 Kafka 实例，输入命令启动

...............................
[2019-07-24 06:18:19,793] INFO [Transaction Marker Channel Manager 2]: Starting(kafka.coordinator.transaction.TransactionMarkerChannelManager)
[2019-07-24 06:18:19,793] INFO [TransactionCoordinator id=2] Startup complete. (kafka.coordinator.transaction.TransactionCoordinator)
[2019-07-24 06:18:19,846] INFO [/config/changes-event-process-thread]: Starting (kafka.common.ZkNodeChangeNotificationListener$ChangeEventProcessThread)
[2019-07-24 06:18:19,869] INFO [SocketServer brokerId=2] Started data-plane processors for 1 acceptors (kafka.network.SocketServer)
[2019-07-24 06:18:19,879] INFO Kafka version: 2.2.1 (org.apache.kafka.common.utils.AppInfoParser)
[2019-07-24 06:18:19,879] INFO Kafka commitId: 55783d3133a5a49a (org.apache.kafka.common.utils.AppInfoParser)
[2019-07-24 06:18:19,883] INFO [KafkaServer id=2] started (kafka.server.KafkaServer)
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