kakfa+zookeeper集群搭建
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1:下载对应安装包
zookeeper-3.4.14.tar.gz:链接:https://pan.baidu.com/s/19_eYsv5r9bg0AKv3TzjpZQ 提取码:ik8a
kafka_2.12-2.1.1.tgz: 链接:https://pan.baidu.com/s/1VcLtB17fEzFrVyvran1qhQ 提取码:e4f1
2:解压对应软件包
mkdir /data tar zxf zookeeper-3.4.14.tar.gz -C /data/ gzip -d kafka_2.12-2.1.1.tgz tar xvf kafka_2.12-2.1.1.tar -C /data/
3:进行相对应的配置
cd /data/zookeeper-3.4.14/conf [root@kafka1 conf]# cat zoo.cfg #心跳间隔时间,zookeeper中使用的基本时间单位,毫秒值。每隔2秒发送一个心跳 tickTime=2000 #leader与客户端连接超时时间。表示10个心跳间隔 initLimit=10 #Leader与Follower之间的超时时间,表示5个心跳间隔 syncLimit=5 dataDir=/data/zookeeper-3.4.14/data/ #数据目录 dataLogDir=/data/zookeeper-3.4.14/data/ #日志目录 clientPort=2181 #客户端连接端口 server.1=10.251.23.162:2888:3888 server.2=10.251.23.163:2888:3888 server.3=10.251.23.164:2888:3888
上述server.{1,2,3} 是zookeeper新增../data/myid配置文件1和kakfa服务内server.properties配置的broker.id和kafkalog/meta.properties 配置文件内的broker.id=1这几个一定要有不然后续启动会报错
启动kafka报错信息如下:
32 [2019-04-03 23:59:20,892] ERROR Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer) 33 kafka.common.InconsistentBrokerIdException: Configured broker.id 1 doesn‘t match stored broker.id 0 in meta.properties. If you moved your data, make sure your configured broker.id matches. If you intend to create a new broker, you should remove all data in your data directories (log.dirs). 34 at kafka.server.KafkaServer.getBrokerIdAndOfflineDirs(KafkaServer.scala:686) 35 at kafka.server.KafkaServer.startup(KafkaServer.scala:209) 36 at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:38) 37 at kafka.Kafka$.main(Kafka.scala:75) 38 at kafka.Kafka.main(Kafka.scala) 39 [2019-04-03 23:59:20,899] INFO shutting down (kafka.server.KafkaServer) 40 [2019-04-03 23:59:20,909] INFO [ZooKeeperClient] Closing. (kafka.zookeeper.ZooKeeperClient) 41 [2019-04-03 23:59:20,926] INFO EventThread shut down for session: 0x1000015a06e0000 (org.apache.zookeeper.ClientCnxn) 42 [2019-04-03 23:59:20,929] INFO Session: 0x1000015a06e0000 closed (org.apache.zookeeper.ZooKeeper) 43 [2019-04-03 23:59:20,952] INFO [ZooKeeperClient] Closed. (kafka.zookeeper.ZooKeeperClient) 44 [2019-04-03 23:59:20,971] INFO shut down completed (kafka.server.KafkaServer) 45 [2019-04-03 23:59:20,998] ERROR Exiting Kafka. (kafka.server.KafkaServerStartable) 46 [2019-04-03 23:59:21,034] INFO shutting down (kafka.server.KafkaServer)
4:添加myid文件,每台机器都需要添加,1机器是1,2机器是2,3机器是3
[root@kafka1 conf]# cat /data/zookeeper-3.4.14/data/myid 1
5:分别启动三台zookeeper
[root@kafka1 bin]# pwd /data/zookeeper-3.4.14/bin [root@kafka1 bin]# ./zkServer.sh start
6:查看状态,分为leader和follower,至此zookeeper已安装完成
[root@kafka1 bin]# ./zkServer.sh status ZooKeeper JMX enabled by default Using config: /data/zookeeper-3.4.14/bin/../conf/zoo.cfg Mode: follower
7:三台配置kafka,具体参数含义,百度吧。。。注意broker.id和listeners监听地址
[root@nlp-staging-kafka1 config]# pwd /data/kafka_2.12-2.1.1/config [root@nlp-staging-kafka1 config]# cat server.properties broker.id=1 #当前机器在集群中的唯一标识,和zookeeper的myid性质一样 listeners=PLAINTEXT://10.251.23.162:9092 num.network.threads=3 #这个是borker进行网络处理的线程数 num.io.threads=8 #这个是borker进行I/O处理的线程数 socket.send.buffer.bytes=102400 #发送缓冲区buffer大小,数据不是一下子就发送的,先回存储到缓冲区了到达一定的大小后在发送,能提高性能 socket.receive.buffer.bytes=102400 #kafka接收缓冲区大小,当数据到达一定大小后在序列化到磁盘 socket.request.max.bytes=104857600 #这个参数是向kafka请求消息或者向kafka发送消息的请请求的最大数,这个值不能超过java的堆栈大小 log.dirs=/data/kafkalogs/ #消息存放的目录,这个目录可以配置为“,”逗号分割的表达式,上面的num.io.threads要大于这个目录的个数这个目录,如果配置多个目录,新创建的topic他把消息持久化的地方是,当前以逗号分割的目录中,那个分区数最少就放那一个 num.partitions=16 #默认的分区数,一个topic默认16个分区数?? num.recovery.threads.per.data.dir=1 offsets.topic.replication.factor=1 transaction.state.log.replication.factor=1 transaction.state.log.min.isr=1 log.retention.hours=24 #默认消息的最大持久化时间,24小时 log.retention.bytes=-1 log.segment.bytes=1073741824 log.retention.check.interval.ms=300000 #默认消息的最大持久化时间,300000小时 zookeeper.connect=localhost:2181 zookeeper.connection.timeout.ms=6000 group.initial.rebalance.delay.ms=0 message.max.byte=5242880 log.cleaner.enable=true delete.topic.enable=true replica.fetch.max.bytes=5242880 offsets.topic.replication.factor=3 transaction.state.log.replication.factor=3 transaction.state.log.min.isr=3 zookeeper.connect=10.251.23.162:2181,10.251.23.163:2181,10.251.23.164:2181 #设置zookeeper的连接端口
8:三台都新增一个文件
[root@kafka1 kafkalogs]# pwd /data/kafkalogs [root@kafka1 kafkalogs]# cat meta.properties version=0 broker.id=1
9:三台分别进入kafka的bin目录启动kafka
./kafka-server-start.sh ../config/server.properties &
至此完成
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