Kafka对接Flume

配置flume，编写kafka.conf文件。从端口44444采集数据，发送到kafka的first主题。

# Name the components on this agent
a1.sources = r1
a1.sinks = k1
a1.channels = c1

# Describe/configure the source
a1.sources.r1.type = netcat
a1.sources.r1.bind = localhost
a1.sources.r1.port = 44444

# Describe the sink 相当于kafka的生产者
a1.sinks.k1.type = org.apache.flume.sink.kafka.KafkaSink
a1.sinks.k1.kafka.topic = first
a1.sinks.k1.kafka.bootstrap.servers = hadoop102:9092,hadoop103:9092,hadoop104:9092
a1.sinks.k1.kafka.flumeBatchSize = 20
a1.sinks.k1.kafka.producer.acks = 1
a1.sinks.k1.kafka.producer.linger.ms = 1

# Use a channel which buffers events in memory
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100

# Bind the source and sink to the channel
a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1

启动flume采集数据

 bin/flume-ng agent -c conf/ -n a1 -f job/kafka.conf

模拟生产数据

[atguigu@hadoop102 ~]$ nc localhost 44444
helloworld
OK
123
OK

控制台消费数据。如此便形成了一个由flume采集数据，然后发送到kafka的过程。

[atguigu@hadoop102 kafka]$ bin/kafka-console-consumer.sh --bootstrap-server hadoop102:9092 --topic first
helloworld
123

 通过flume拦截器，将数据发送到kafka的不同主题。待续。。

思路：如果是kafka作为channel，通过ChannelSelector的拦截器，可以发往不同的Kafka Channel。