flume的使用：扇出-單source多channel多sink監控：監控文件並採集到hdfs與本地

0.圖解過程：

1.修改多配置文件,flumejob_1.conf,flumejob_2.conf,flumejob_3.conf

(1)flumejob_1.conf

a1.sources = r1
a1.sinks = k1 k2
a1.channels = c1 c2
# 將數據流複製給多個channel
a1.sources.r1.selector.type = replicating

# 2.source
a1.sources.r1.type = exec
a1.sources.r1.command = tail -F /opt/plus
a1.sources.r1.shell = /bin/bash -c

# 3.sink1
a1.sinks.k1.type = avro
a1.sinks.k1.hostname = hadoop3
a1.sinks.k1.port = 4141

# sink2
a1.sinks.k2.type = avro
a1.sinks.k2.hostname = hadoop4
a1.sinks.k2.port = 4141

# 4.channel—1
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100

# 4.channel—2
a1.channels.c2.type = memory
a1.channels.c2.capacity = 1000
a1.channels.c2.transactionCapacity = 100

# Bind the source and sink to the channel
a1.sources.r1.channels = c1 c2
a1.sinks.k1.channel = c1
a1.sinks.k2.channel = c2

(2)flumejob_2.conf

# 1 agent
a2.sources = r1
a2.sinks = k1
a2.channels = c1

# 2 source
a2.sources.r1.type = avro
a2.sources.r1.bind = hadoop3
a2.sources.r1.port = 4141

# 3 sink
a2.sinks.k1.type = hdfs
a2.sinks.k1.hdfs.path = hdfs://hadoop2:9000/flume2/%H
#上傳文件的前綴
a2.sinks.k1.hdfs.filePrefix = flume2-
#是否按照時間滾動文件夾
a2.sinks.k1.hdfs.round = true
#多少時間單位創建一個新的文件夾
a2.sinks.k1.hdfs.roundValue = 1
#重新定義時間單位
a2.sinks.k1.hdfs.roundUnit = hour
#是否使用本地時間戳
a2.sinks.k1.hdfs.useLocalTimeStamp = true
#積攢多少個Event才flush到HDFS一次
a2.sinks.k1.hdfs.batchSize = 100
#設置文件類型，可支持壓縮
a2.sinks.k1.hdfs.fileType = DataStream
#多久生成一個新的文件
a2.sinks.k1.hdfs.rollInterval = 600
#設置每個文件的滾動大小大概是128M
a2.sinks.k1.hdfs.rollSize = 134217700
#文件的滾動與Event數量無關
a2.sinks.k1.hdfs.rollCount = 0
#最小副本數
a2.sinks.k1.hdfs.minBlockReplicas = 1


# 4 channel
a2.channels.c1.type = memory
a2.channels.c1.capacity = 1000
a2.channels.c1.transactionCapacity = 100

#5 Bind 
a2.sources.r1.channels = c1
a2.sinks.k1.channel = c1

(3)flumejob_3.conf

#1 agent
a3.sources = r1
a3.sinks = k1
a3.channels = c1

# 2 source
a3.sources.r1.type = avro
a3.sources.r1.bind = hadoop4
a3.sources.r1.port = 4141

#3 sink
a3.sinks.k1.type = file_roll
#備註：此處的文件夾需要先創建好
a3.sinks.k1.sink.directory = /opt/flume3

# 4 channel
a3.channels.c1.type = memory
a3.channels.c1.capacity = 1000
a3.channels.c1.transactionCapacity = 100

# 5 Bind
a3.sources.r1.channels = c1
a3.sinks.k1.channel = c1

2.啓動：先啓動1，再啓動2，3

由於flumejob_3.conf是採集到本地，故本地linux必須存在/root/flume2目錄

bin/flume-ng agent --conf conf/ --name a1 --conf-file conf/flumejob_1.conf

bin/flume-ng agent --conf conf/ --name a1 --conf-file conf/flumejob_2.conf

bin/flume-ng agent --conf conf/ --name a1 --conf-file conf/flumejob_3.conf

3.驗證：

修改文件，進行操作，並在本地/root/flume2或hdfs下/flume2目錄下查看