flume-1.9.0 与 hadoop-3.3.0 HDFS 对接部署

一、下载 apache-flume-1.9.0-bin.tar.gz 解压至 /home/hadoop-3.3.0/flume-1.9.0 目录；

二、创建相关目录 

     /home/hadoop-3.3.0/flumefile   //用于接收tomcat日志文件

     /home/hadoop-3.3.0/flume-1.9.0/channels1_logs_tmp

     /home/hadoop-3.3.0/flume-1.9.0/channels1_logs_tmp_cp

三、创建并配置 /home/hadoop-3.3.0/flume-1.9.0/conf/flume.conf 文件：

# 指定Agent的组件名称
a1.sources = r1
a1.sinks = k1
a1.channels = c1

# 指定Flume source(要监听的路径)
a1.sources.r1.type = spooldir
a1.sources.r1.spoolDir = /home/hadoop-3.3.0/flumefile
a1.sources.r1.fileHeader = false
a1.sources.r1.interceptors = i1
a1.sources.r1.interceptors.i1.type = timestamp

# 指定Flume sink
a1.sinks.k1.type = hdfs
a1.sinks.k1.hdfs.path = hdfs://iZwz974yt1d*****:9000/logs
a1.sinks.k1.hdfs.fileType = DataStream
a1.sinks.k1.hdfs.writeFormat = TEXT
a1.sinks.k1.hdfs.minBlockReplicas = 1  
a1.sinks.k1.hdfs.rollInterval = 600
a1.sinks.k1.hdfs.rollSize = 0  
a1.sinks.k1.hdfs.rollCount = 0  
a1.sinks.k1.hdfs.idleTimeout = 0
a1.sinks.k1.hdfs.filePrefix=%Y-%m-%d

# 指定Flume channel
a1.channels.c1.type = file
#a1.channels.c1.capacity = 1000
#a1.channels.c1.transactionCapacity = 100
a1.channels.c1.checkpointDir=/home/hadoop-3.3.0/flume-1.9.0/channels1_logs_tmp_cp
a1.channels.c1.dataDirs=/home/hadoop-3.3.0/flume-1.9.0/channels1_logs_tmp

# 绑定source和sink到channel上
a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1

四、替换 guava 包：

将 /home/hadoop-3.3.0/flume-1.9.0/lib/guava-11.0.2.jar  替换为 /home/hadoop-3.3.0/share/hadoop/hdfs/lib/guava-27.0-jre.jar

否则将报以下错误：

2020-08-21 09:31:52,381 (SinkRunner-PollingRunner-DefaultSinkProcessor) [ERROR - org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:459)] process failed
java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkArgument(ZLjava/lang/String;Ljava/lang/Object;)V
        at org.apache.hadoop.conf.Configuration.set(Configuration.java:1380)
        at org.apache.hadoop.conf.Configuration.set(Configuration.java:1361)
        at org.apache.hadoop.conf.Configuration.setBoolean(Configuration.java:1703)
        at org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:221)
        at org.apache.flume.sink.hdfs.BucketWriter.append(BucketWriter.java:572)
        at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:412)
        at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:67)
        at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:145)
        at java.lang.Thread.run(Thread.java:748)
Exception in thread "SinkRunner-PollingRunner-DefaultSinkProcessor" java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkArgument(ZLjava/lang/String;Ljava/lang/Object;)V
        at org.apache.hadoop.conf.Configuration.set(Configuration.java:1380)
        at org.apache.hadoop.conf.Configuration.set(Configuration.java:1361)
        at org.apache.hadoop.conf.Configuration.setBoolean(Configuration.java:1703)
        at org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:221)
        at org.apache.flume.sink.hdfs.BucketWriter.append(BucketWriter.java:572)
        at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:412)
        at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:67)
        at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:145)
        at java.lang.Thread.run(Thread.java:748)
2020-08-21 09:32:22,059 (Log-BackgroundWorker-c1) [INFO - org.apache.flume.channel.file.EventQueueBackingStoreFile.beginCheckpoint(EventQueueBackingStoreFile.java:230)] Start checkpoint for /home/hadoop-3.3.0/flume-1.9.0/channels1_logs_tmp_cp/checkpoint, elements to sync = 1

五、启动flume：

cd  /home/hadoop-3.3.0/flume-1.9.0

nohup bin/flume-ng agent --conf conf --conf-file conf/flume.conf --name a1 -Dflume.root.logger=INFO,console &

 六、确认是否启动成功： ps -ef|grep flume