使用：
已在9000端口上创建了hdfs服务。
jps：
11688 DataNode
10120 Jps
11465 NameNode
11964 SecondaryNameNode
12621 NodeManager
12239 ResourceManager
Flume conf：
agent1.channels.memory-channel.type=memory
agent1.sources.tail-source.type=exec
agent1.sources.tail-source.command=tail -F /var/log/nginx/access.log
agent1.sources.tail-source.channels=memory-channel
#hdfs sink
agent1.sinks.hdfs-sink.channel=memory-channel
agent1.sinks.hdfs-sink.type=hdfs
agent1.sinks.hdfs-sink.hdfs.path=hdfs://cluster01:9000/system.log
agent1.sinks.hdfs-sink.hdfs.fileType=DataStream
agent1.channels=memory-channel
agent1.sources=tail-source
agent1.sinks=log-sink hdfs-sink
然后开始水槽：
./bin/flume-ng agent --conf conf -conf-file conf/test1.conf --name agent1 -Dflume.root.logger=INFO,console
然后遇到错误：
Info: Including Hadoop libraries found via (/usr/local/hadoop-3.2.1/bin/hadoop) for HDFS access
...
2019-11-04 14:48:24,818 (lifecycleSupervisor-1-1) [INFO - org.apache.flume.instrumentation.MonitoredCounterGroup.start(MonitoredCounterGroup.java:95)] Component type: SINK, name: hdfs-sink started
2019-11-04 14:48:28,823 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - org.apache.flume.sink.hdfs.HDFSDataStream.configure(HDFSDataStream.java:57)] Serializer = TEXT, UseRawLocalFileSystem = false
2019-11-04 14:48:28,836 (SinkRunner-PollingRunner-DefaultSinkProcessor) [ERROR - org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:447)] 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:1357)
at org.apache.hadoop.conf.Configuration.set(Configuration.java:1338)
at org.apache.hadoop.conf.Configuration.setBoolean(Configuration.java:1679)
at org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:226)
at org.apache.flume.sink.hdfs.BucketWriter.append(BucketWriter.java:541)
at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:401)
at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:67)
at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:145)
at java.lang.Thread.run(Thread.java:748)
Exception in thread "SinkRunner-PollingRunner-DefaultSinkProcessor" java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkArgument(ZLjava/lang/String;Ljava/lang/Object;)V
at org.apache.hadoop.conf.Configuration.set(Configuration.java:1357)
at org.apache.hadoop.conf.Configuration.set(Configuration.java:1338)
at org.apache.hadoop.conf.Configuration.setBoolean(Configuration.java:1679)
at org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:226)
at org.apache.flume.sink.hdfs.BucketWriter.append(BucketWriter.java:541)
at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:401)
at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:67)
at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:145)
at java.lang.Thread.run(Thread.java:748)
我搜索了一段时间，但没有在网上找到相同的错误。是否有解决此问题的建议？
可能由lib / guava引起。
我删除了lib / guava-11.0.2.jar，然后重新启动水槽，发现它可以工作。
输出：
2019-11-04 16:52:58,062 (hdfs-hdfs-sink-call-runner-0) [WARN - org.apache.hadoop.util.NativeCodeLoader.<clinit>(NativeCodeLoader.java:60)] Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
2019-11-04 16:53:01,532 (Thread-9) [INFO - org.apache.hadoop.hdfs.protocol.datatransfer.sasl.SaslDataTransferClient.checkTrustAndSend(SaslDataTransferClient.java:239)] SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false
但是我仍然不知道现在使用的是哪个版本的番石榴。