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今天，就给大家带来一篇Flume采集Nginx日志到HDFS的文章，好了，不多说了，直接进入主题。

一、下载

大家可以到Apache官网下载：http://flume.apache.org/

比如我下载的是apache-flume-1.7.0-bin.tar.gz

二、配置

1、解压

输入如下命令进行解压

tar -zxvf apache-flume-1.7.0-bin.tar.gz

2、配置/etc/profile

export FLUME_HOME=/opt/apache-flume-1.7.0-bin
export PATH=$PATH:$FLUME_HOME/bin

3、修改$FLUME_HOME/conf/下的两个文件

在flume-env.sh中增加JAVA_HOME：

JAVA_HOME=/opt/jdk1.8.0_121

4、修改修改flume-conf.properties文件

# 配置Agent
a1.sources = r1
a1.sinks = k1
a1.channels = c1

# 配置Source
a1.sources.r1.type = exec
a1.sources.r1.channels = c1
a1.sources.r1.deserializer.outputCharset = UTF-8

# 配置需要监控的日志输出目录
a1.sources.r1.command = tail -F /usr/local/nginx/log/access.log

# 配置Sink
a1.sinks.k1.type = hdfs
a1.sinks.k1.channel = c1
a1.sinks.k1.hdfs.useLocalTimeStamp = true
a1.sinks.k1.hdfs.path = hdfs://master:9000/flume/events/%Y-%m
a1.sinks.k1.hdfs.filePrefix = %Y-%m-%d-%H
a1.sinks.k1.hdfs.fileSuffix = .log
a1.sinks.k1.hdfs.minBlockReplicas = 1
a1.sinks.k1.hdfs.fileType = DataStream
a1.sinks.k1.hdfs.writeFormat = Text
a1.sinks.k1.hdfs.rollInterval = 86400
a1.sinks.k1.hdfs.rollSize = 1000000
a1.sinks.k1.hdfs.rollCount = 10000
a1.sinks.k1.hdfs.idleTimeout = 0

# 配置Channel
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100

# 将三者连接
a1.sources.r1.channel = c1
a1.sinks.k1.channel = c1
以上文件设置了Source、Channel和Sink，将Nginx日志中的记录采集到HDFS，运行
flume-ng agent -n a1 -c conf -f $FLUME_HOME/conf/flume-conf.properties
如果没有报错，则安装设置成功了，Nginx中新增加的记录都会被Flume采集，并且存储到HDFS。