flume 配置与使用

1、下载flume，解压到自建文件夹

2、修改flume-env.sh文件

　　在文件中添加JAVA_HOME

3、修改flume.conf 文件（原名好像不叫这个，我自己把模板名改了）

里面我自己配的（具体配置参见 http://flume.apache.org/FlumeUserGuide.html）

agent1 是我的代理名称

source是netcat （数据源）

channel 是memory（内存）

sink是hdfs（输出）

注意配置中添加

agent1.sinks.k1.hdfs.fileType = DataStream

否则hdfs中接收的文件会出现乱码

如果要配置根据时间来分类写入hdfs的功能，要求传入的文件必须要有时间戳（datastamp）

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
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#  http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing,
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# specific language governing permissions and limitations
# under the License.

# The configuration file needs to define the sources,
# the channels and the sinks.
# Sources, channels and sinks are defined per agent,
# in this case called 'agent'

agent1.sources = r1
agent1.channels = c1
agent1.sinks = k1

# For each one of the sources, the type is defined
agent1.sources.r1.type = netcat
agent1.sources.r1.channels = c1
#agent1.sources.r1.ack-every-event = false
agent1.sources.r1.max-line-length = 100
agent1.sources.r1.bind = 192.168.19.107
agent1.sources.r1.port = 44445

# Describe/configure the interceptor

#agent1.sources.r1.interceptors = i1
#agent1.sources.r1.interceptors.i1.type = com.nd.bigdata.insight.interceptor.KeyTimestampForKafka$Builder

# Each sink's type must be defined
#agent1.sinks.k1.type = org.apache.flume.sink.kafka.KafkaSink
#agent1.sinks.k1.topic = insight-test6
#agent1.sinks.k1.brokerList =192.168.181.120:9092,192.168.181.121:9092,192.168.181.66:9092
#agent1.sinks.k1.batchSize=100
#agent1.sinks.k1.requiredAcks = 0

# logger
#agent1.sinks.k1.type = logger
#agent1.sinks.k1.channel = c1

#HDFS
agent1.sinks.k1.type = hdfs
agent1.sinks.k1.channel = c1
agent1.sinks.k1.hdfs.path = test/flume/events/
agent1.sinks.k1.hdfs.filePrefix = events-
agent1.sinks.k1.hdfs.round = true
agent1.sinks.k1.hdfs.roundValue = 10
agent1.sinks.k1.hdfs.roundUnit = minute
agent1.sinks.k1.hdfs.fileType = DataStream

# Each channel's type is defined.
agent1.channels.c1.type = memory
agent1.channels.c1.capacity = 1000
"flume.conf" 70L, 2291C

4、启动flume：（文件根目录下启动）

bin/flume-ng agent --conf conf --conf-file conf/flume.conf --name agent1 -Dflume.root.logger=INFO,console（里面的flume.conf ，agent1 请替换成你自己的名字）

5、用另一台机试着发送文件

telnet 192.168.19.107  44445  （创建连接）

然后发送内容

6、生成的hdfs文件