flume采集kafka到hdfs遇到的问题2

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$PollingRunner.run(SinkRunner.java:145)
    at java.lang.Thread.run(Thread.java:748)
Exception in thread "SinkRunner-PollingRunner-DefaultSinkProcessor" java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkArgument(ZLjava/lang/String;Ljava/lang/Object;)V
    at org.apache.hadoop.conf.Configuration.set(Configuration.java:1357)
    at org.apache.hadoop.conf.Configuration.set(Configuration.java:1338)
    at org.apache.hadoop.conf.Configuration.setBoolean(Configuration.java:1679)
    at org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:226)
    at org.apache.flume.sink.hdfs.BucketWriter.append(BucketWriter.java:541)
    at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:401)
    at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:67)
    at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:145)
    at java.lang.Thread.run(Thread.java:748)

报错信息：

遇到这种问题，无非两种情况，一是 丢失jar包，二是 jar包冲突。

由于对hadoop以及flume版本选择比较随意。猜测是jar包存在冲突。找到报错类 com.google.common.base.Preconditions ，通过查询 该类存在 guava jar包中。

flume的lib中 /opt/flume/apache-flume-1.9.0-bin/lib （guava-11.0.2.jar），

而 hadoop 的 lib 中 /opt/hadoop/hadoop-3.2.1/share/hadoop/common/lib/ （guava-27.0-jre.jar），

删除版本低的，并拷贝高版本的。 问题解决。