linux集成 kafka数据通过flume发送到hadoop

﹏ヽ暗。殇╰゛Y 2022-06-15 03:55 168阅读 0赞

上一篇文章《[ linux安装flume和集成kafka测试][linux_flume_kafka]》，我们介绍了flume安装和集成数据到kafka，本篇文章我们将集成kafka,flume,hadoop，通过flume发送kafka数据到hadoop的hdfs文件。

# 一.前期准备 #

### 1.1 hadoop安装 ###

版本：Hadoop 2.6.5

安装：[ linux hadoop完全分布式集群搭建图文详解][linux hadoop]

### 1.2 zookeeper安装 ###

版本：zookeeper-3.4.9

安装：[ linux zookeeper3.4.9集群搭建图文详解][linux zookeeper3.4.9]

### 1.3 kafka安装 ###

版本：kafka\_2.10-0.10.1.0

安装：[ linux kafka集群配置和测试图文详解][linux kafka]

### 1.4 flume安装 ###

版本：apache-flume-1.7.0

安装：[ linux安装flume和集成kafka测试][linux_flume_kafka]

# 二.配置flume-conf #

#source的名字
    agent.sources = kafkaSource
    # channels的名字，建议按照type来命名
    agent.channels = memoryChannel
    # sink的名字，建议按照目标来命名
    agent.sinks = hdfsSink
    
    # 指定source使用的channel名字
    agent.sources.kafkaSource.channels = memoryChannel
    # 指定sink需要使用的channel的名字,注意这里是channel
    agent.sinks.hdfsSink.channel = memoryChannel
    
    #-------- kafkaSource相关配置-----------------
    # 定义消息源类型
    agent.sources.kafkaSource.type = org.apache.flume.source.kafka.KafkaSource
    # 定义kafka所在zk的地址
    agent.sources.kafkaSource.zookeeperConnect = 192.168.32.128:2181,192.168.32.131:2181,192.168.32.132:2181
    # 配置消费的kafka topic
    agent.sources.kafkaSource.topic=flumeTest2
    # 配置消费者组的id
    agent.sources.kafkaSource.groupId = flume
    # 消费超时时间,参照如下写法可以配置其他所有kafka的consumer选项。注意格式从kafka.xxx开始是consumer的配置属性
    #agent.sources.kafkaSource.kafka.consumer.timeout.ms = 100
    
    #------- memoryChannel相关配置-------------------------
    # channel类型
    agent.channels.memoryChannel.type = memory
    # channel存储的事件容量
    agent.channels.memoryChannel.capacity=1000
    # 事务容量
    agent.channels.memoryChannel.transactionCapacity=100
    
    #---------hdfsSink 相关配置------------------
    agent.sinks.hdfsSink.type = hdfs
    agent.sinks.hdfsSink.hdfs.path = hdfs://Master:9000/usr/hive/warehouse/test

# 三.kafka,flume,hadoop集成测试 #

### 3.1 hadoop操作 ###

#### 3.1.1 启动dfs+yarn ####

sbin/start-all.sh

#### 3.1.2 新建/usr/hive/warehouse/test文件并赋予权限 ####

hadoop fs -mkdir /usr/hive/warehouse/test
    hadoop dfs -chmod g+w /usr/hive/warehouse/test

#### 3.1.3 查看创建文件 ####

![Image 1][]

![Center][]

### 3.2 kafka操作 ###

#### 3.2.1 创建主题flumeTest2 ####

bin/kafka-topics.sh --create --zookeeper 192.168.32.128:2181,192.168.32.131:2181,192.168.32.132:2181 --replication-factor 3 --partitions 3 --topic flumeTest2

#### 3.2.2 kafka生产者 ####

bin/kafka-console-producer.sh --broker-list 192.168.32.128:9092,192.168.32.131:9092,192.168.32.132:9092 --topic flumeTest2

#### 3.2.3 kafka消费者 ####

bin/kafka-console-consumer.sh --zookeeper 192.168.32.128:2181,192.168.32.131:2181,192.168.32.132:2181 --topic flumeTest2 --from-beginning

### 3.3 flume操作 ###

bin/flume-ng agent -n agent -c conf -f conf/flume-conf.properties -Dflume.root.logger=INFO,console

![Center 1][]

![Image 1][]

### 3.4 测试结果 ###

![Center 2][]

# 四. 字符串输出实现集成 #

上节中实现集成的方式，输出的结果有乱码，类似二进制输出

![Center 3][]

![Image 1][]

本节将换一种方式实现flume,kafka,hadoop集成。

### 4.1 flume-conf 配置 ###

tier1.sources  = source1
     tier1.channels = channel1
     tier1.sinks = sink1
     
     tier1.sources.source1.type = org.apache.flume.source.kafka.KafkaSource
     tier1.sources.source1.zookeeperConnect = 192.168.32.128:2181,192.168.32.131:2181,192.168.32.132:2181
     tier1.sources.source1.topic = flumeTest2
     tier1.sources.source1.groupId = flume
     tier1.sources.source1.channels = channel1
     tier1.sources.source1.interceptors = i1
     tier1.sources.source1.interceptors.i1.type = timestamp
     tier1.sources.source1.kafka.consumer.timeout.ms = 1000
     
     tier1.channels.channel1.type = memory
     tier1.channels.channel1.capacity = 10000
     tier1.channels.channel1.transactionCapacity = 1000
     
     tier1.sinks.sink1.type = hdfs
     tier1.sinks.sink1.hdfs.path = /tmp/kafka/%{topic}/%y-%m-%d
     tier1.sinks.sink1.hdfs.rollInterval = 5
     tier1.sinks.sink1.hdfs.rollSize = 0
     tier1.sinks.sink1.hdfs.rollCount = 0
     tier1.sinks.sink1.hdfs.fileType = DataStream
     tier1.sinks.sink1.channel = channel1

### 4.2 启动flume ###

bin/flume-ng agent -n tier1 -c conf -f conf/flume-conf.properties -Dflume.root.logger=INFO,console

### 4.3 测试结果 ###

![Center 4][]

![Center 5][]

![Image 1][]

[linux_flume_kafka]: http://blog.csdn.net/a123demi/article/details/72637847
[linux hadoop]: http://blog.csdn.net/a123demi/article/details/70652959
[linux zookeeper3.4.9]: http://blog.csdn.net/a123demi/article/details/70267294
[linux kafka]: http://blog.csdn.net/a123demi/article/details/70279296
[Image 1]: 
[Center]: /images/20220615/009de1de0533403ebeb914e116d851f5.png
[Center 1]: /images/20220615/d29e0dd96f444450934257964d839202.png
[Center 2]: /images/20220615/f7e8626157ab494298cf54d9c27b5e63.png
[Center 3]: /images/20220615/0e512bf166964f75bc831c84260ed9e4.png
[Center 4]: /images/20220615/8d03362e561b49a78326f0424f2a19b0.png
[Center 5]: /images/20220615/d5d76c1d029347408ff589703c628577.png