官网中虽然说没有key 会随机分配到partition,但是不知道为什么在我这没有出现这种效果,所以我加了一个key,需要加个source拦截器

运行flume-ng agent --conf conf --conf-file test.sh --name a1 -Dflume.root.logger=INFO,console

# example.conf: A single-node Flume configuration

# Name the components on this agent

a1.sources = r1

a1.sinks = k1

a1.channels = c1

# Describe/configure the source

a1.sources.r1.type =exec

a1.sources.r1.command =tail -F /opt/access.log

# Describe the sink

a1.sinks.k1.type = org.apache.flume.sink.kafka.KafkaSink

a1.sinks.k1.topic = test

a1.sinks.k1.brokerList = node1:9092,node2:9092,node3:9092

a1.sinks.k1.metadata.broker.list = node1:9092,node2:9092,node3:9092

a1.sinks.k1.requiredAcks = 1

a1.sinks.k1.batchSize = 20

a1.sinks.k1.channel = c1

#source 拦截器

a1.sources.r1.interceptors = i2

a1.sources.r1.interceptors.i2.type = org.apache.flume.sink.solr.morphline.UUIDInterceptor$Builder

a1.sources.r1.interceptors.i2.headerName = key

a1.sources.r1.interceptors.i2.preserveExisting = false

# 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