kafka安装教程

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本文记录在linux环境下，安装kafka，并做简单测试，如果zookeeper没有安装，可参考zookeeper安装：

1.下载安装包

地址：http://kafka.apache.org/downloads， 注意不要下载成source了。

2.上传至服务器

rz命令上传至服务器

解压

[root@localhost local]# tar -zxvf kafka_2.11-2.1.1.tgz 

3.修改配置文件

这里这列举几个重要的配置，其他配置如果只是单机的自己做测试不需要修改：

4.启动

[root@localhost bin]# ./kafka-server-start.sh ../config/server.properties &

这个&是后台启动，但是需要exit去退出。
（还有一种是：sh kafka-server-start.sh …/config/server.properties 1>/dev/null 2>&1 &

其中1>/dev/null 2>&1 是将命令产生的输入和错误都输入到空设备，也就是不输出的意思。

/dev/null代表空设备。）

启动后会刷一波日志然后看到如下信息：

[2019-02-28 10:49:13,727] INFO [ExpirationReaper-1-Rebalance]: Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
[2019-02-28 10:49:14,551] INFO [GroupCoordinator 1]: Starting up. (kafka.coordinator.group.GroupCoordinator)
[2019-02-28 10:49:14,600] INFO [GroupCoordinator 1]: Startup complete. (kafka.coordinator.group.GroupCoordinator)
[2019-02-28 10:49:14,866] INFO [GroupMetadataManager brokerId=1] Removed 0 expired offsets in 228 milliseconds. (kafka.coordinator.group.GroupMetadataManager)
[2019-02-28 10:49:15,019] INFO [ProducerId Manager 1]: Acquired new producerId block (brokerId:1,blockStartProducerId:0,blockEndProducerId:999) by writing to Zk with path version 1 (kafka.coordinator.transaction.ProducerIdManager)
[2019-02-28 10:49:15,143] INFO [TransactionCoordinator id=1] Starting up. (kafka.coordinator.transaction.TransactionCoordinator)
[2019-02-28 10:49:15,279] INFO [TransactionCoordinator id=1] Startup complete. (kafka.coordinator.transaction.TransactionCoordinator)
[2019-02-28 10:49:15,317] INFO [Transaction Marker Channel Manager 1]: Starting (kafka.coordinator.transaction.TransactionMarkerChannelManager)
[2019-02-28 10:49:18,420] INFO [/config/changes-event-process-thread]: Starting (kafka.common.ZkNodeChangeNotificationListener$ChangeEventProcessThread)
[2019-02-28 10:49:18,631] INFO [SocketServer brokerId=1] Started processors for 1 acceptors (kafka.network.SocketServer)
[2019-02-28 10:49:18,690] INFO Kafka version : 2.1.1 (org.apache.kafka.common.utils.AppInfoParser)
[2019-02-28 10:49:18,709] INFO Kafka commitId : 21234bee31165527 (org.apache.kafka.common.utils.AppInfoParser)
[2019-02-28 10:49:18,713] INFO [KafkaServer id=1] started (kafka.server.KafkaServer)
[2019-02-28 10:59:14,552] INFO [GroupMetadataManager brokerId=1] Removed 0 expired off

也可以用命令验证一下：

[root@localhost kafka_2.11-2.1.1]# netstat -tunlp|egrep "(2181|9092)"
tcp6       0      0 :::9092                 :::*                    LISTEN      14019/java          
tcp6       0      0 :::2181                 :::*                    LISTEN      11938/java          
[root@localhost kafka_2.11-2.1.1]# 

5.创建一个topic

创建一个名为“wangtest”的Topic，只有一个分区和一个备份：

[root@localhost bin]# ./kafka-topics.sh --create --zookeeper xx.xx.xx.xx:2181 --replication-factor 1 --partitions 1 --topic wangtest
Created topic "wangtest".
[root@localhost bin]# 

查询一下topic

[root@localhost bin]# ./kafka-topics.sh --list --zookeeper xx.xx.xx.xx:2181
wangtest
[root@localhost bin]# 

6.发送消息

我们发一下消息测试一下：

[root@localhost bin]# ./kafka-console-producer.sh --broker-list xx.x.xx.xx:9092 --topic wangtest
>this is a test message from wangwang
>from itqunqi^H^H^H^H^H^[[3~
>Ties^H^H^H^H
>this test from itu^H
>this test from ityunqing
>

7.消费消息

在另一个终端，可以消费刚才写入的消息

[root@localhost bin]# ./kafka-console-consumer.sh --bootstrap-server xx.xx.xx.xx:9092 --topic wangtest --from-beginning

this is a test message from wangwang
from itqunqi
Ties
this test from itu
this test from ityunqing

资料：http://orchome.com/6