Flume实时读取目录文件到HDFS案例

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目录

flume简介

flume案例

1、监控端口数据官方案例

2、实时读取目录文件到HDFS案例

flume简介

Flume是Cloudera提供的一个高可用的，高可靠的，分布式的海量日志采集、聚合和传输的系统。Flume基于流式架构，灵活简单。

flume案例

1、监控端口数据官方案例

[atguigu@node001 flume-1.7.0]$ bin/flume-ng agent --conf conf/ --name a1 --conf-file job/flume-telnet-logger.conf -Dflume.root.logger=INFO,console

[atguigu@node001 ~]$ cd /opt/software/telnet
[atguigu@node001 telnet]$ ll
总用量 224
-rw-rw-r-- 1 atguigu atguigu  59332 4月  10 14:53 telnet-0.17-48.el6.x86_64.rpm
-rw-rw-r-- 1 atguigu atguigu  37912 4月  10 14:53 telnet-server-0.17-48.el6.x86_64.rpm
-rw-rw-r-- 1 atguigu atguigu 124812 4月  10 14:53 xinetd-2.3.14-40.el6.x86_64.rpm
[atguigu@node001 telnet]$ sudo rpm -ivh xinetd-2.3.14-40.el6.x86_64.rpm
警告：xinetd-2.3.14-40.el6.x86_64.rpm: 头V3 RSA/SHA1 Signature, 密钥 ID c105b9de: NOKEY
准备中...                          ################################# [100%]
正在升级/安装...
   1:xinetd-2:2.3.14-40.el6           ################################# [100%]
[atguigu@node001 telnet]$ sudo rpm -ivh telnet-0.17-48.el6.x86_64.rpm
警告：telnet-0.17-48.el6.x86_64.rpm: 头V3 RSA/SHA1 Signature, 密钥 ID c105b9de: NOKEY
准备中...                          ################################# [100%]
正在升级/安装...
   1:telnet-1:0.17-48.el6             ################################# [100%]
[atguigu@node001 telnet]$ sudo rpm -ivh telnet-server-0.17-48.el6.x86_64.rpm
警告：telnet-server-0.17-48.el6.x86_64.rpm: 头V3 RSA/SHA1 Signature, 密钥 ID c105b9de: NOKEY
准备中...                          ################################# [100%]
正在升级/安装...
   1:telnet-server-1:0.17-48.el6      ################################# [100%]
[atguigu@node001 telnet]$ sudo netstat -tunlp | grep 44444
tcp6       0      0 127.0.0.1:44444         :::*                    LISTEN      3139/java           
[atguigu@node001 telnet]$ 
[atguigu@node001 telnet]$ 
[atguigu@node001 telnet]$ 
[atguigu@node001 telnet]$ telnet localhost 44444
Trying ::1...
telnet: connect to address ::1: Connection refused
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
hello
OK
‘’^Hshidhsidaskdhkasjhdkjshalkdhksjhasjhdjkasd
OK
''
OK
你好，我是xxx，今年xxx岁。
OK

2、实时读取目录文件到HDFS案例

flume-dir-hdfs.conf

a3.sources = r3
a3.sinks = k3
a3.channels = c3
 
# Describe/configure the source
a3.sources.r3.type = spooldir
a3.sources.r3.spoolDir = /opt/module/flume/flume-1.7.0/uploads
a3.sources.r3.fileSuffix = .COMPLETED
a3.sources.r3.fileHeader = true
#忽略所有以.tmp结尾的文件，不上传
a3.sources.r3.ignorePattern = ([^ ]*\.tmp)
 
# Describe the sink
a3.sinks.k3.type = hdfs
a3.sinks.k3.hdfs.path = hdfs://node001:8020/flume/upload/%Y%m%d/%H
#上传文件的前缀
a3.sinks.k3.hdfs.filePrefix = upload-
#是否按照时间滚动文件夹
a3.sinks.k3.hdfs.round = true
#多少时间单位创建一个新的文件夹
a3.sinks.k3.hdfs.roundValue = 1
#重新定义时间单位
a3.sinks.k3.hdfs.roundUnit = hour
#是否使用本地时间戳
a3.sinks.k3.hdfs.useLocalTimeStamp = true
#积攒多少个Event才flush到HDFS一次
a3.sinks.k3.hdfs.batchSize = 100
#设置文件类型，可支持压缩
a3.sinks.k3.hdfs.fileType = DataStream
#多久生成一个新的文件
a3.sinks.k3.hdfs.rollInterval = 600
#设置每个文件的滚动大小大概是128M
a3.sinks.k3.hdfs.rollSize = 134217700
#文件的滚动与Event数量无关
a3.sinks.k3.hdfs.rollCount = 0
#最小冗余数
a3.sinks.k3.hdfs.minBlockReplicas = 1
 
# Use a channel which buffers events in memory
a3.channels.c3.type = memory
a3.channels.c3.capacity = 1000
a3.channels.c3.transactionCapacity = 100
 
# Bind the source and sink to the channel
a3.sources.r3.channels = c3
a3.sinks.k3.channel = c3

[atguigu@node001 flume-1.7.0]$ bin/flume-ng agent --conf conf/ --name a3 --conf-file job/enterpriseDevelopmentCases/flume-dir-hdfs.conf
Info: Sourcing environment configuration script /opt/module/flume/flume-1.7.0/conf/flume-env.sh
Info: Including Hadoop libraries found via (/opt/module/hadoop/hadoop-3.1.3/bin/hadoop) for HDFS access
Info: Including HBASE libraries found via (/opt/module/hbase/hbase-2.0.5/bin/hbase) for HBASE access

[atguigu@node001 hive-3.1.2]$ cd /opt/module/flume/flume-1.7.0/uploads/
[atguigu@node001 uploads]$ ll
总用量 0
[atguigu@node001 uploads]$ touch 1.txt
[atguigu@node001 uploads]$ vim 2.txt
[atguigu@node001 uploads]$ cat 2.txt
cat: 2.txt: 没有那个文件或目录
[atguigu@node001 uploads]$ ll
总用量 4
-rw-rw-r-- 1 atguigu atguigu  0 4月  10 15:58 1.txt.COMPLETED
-rw-rw-r-- 1 atguigu atguigu 22 4月  10 16:00 2.txt.COMPLETED
[atguigu@node001 uploads]$