Flume sink to HDFS error: java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkArgument

Question

With:

• Java 1.8.0_231
• Hadoop 3.2.1
• Flume 1.8.0

Have created a hdfs service on 9000 port.

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

Then start flume:

./bin/flume-ng agent --conf conf -conf-file conf/test1.conf --name agent1 -Dflume.root.logger=INFO,console

Then meet error:

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)

I have searched for a while but haven't found same error on net. Is there any advice to solve this problem?

Answer 1

That may caused by lib/guava.

I removed lib/guava-11.0.2.jar, and restart flume, found it works.

outputs:

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

But I still don't know which version of guava it using now.

Answer 2

I had the same issue. It seems to be a bug in flume. It references a class name that does not exist in that version of guava

Answer 3

Replace guava-11.x.x.jar file with guava-27.x.x.jar from hadoop 3 common library, this will work

hadoop-3.3.0/share/hadoop/common/lib/guava-27.0-jre.jar put this file in your flume library, don't forget to delete older version from flume library first

Answer 4

As others said, there is clash between guava-11 (hadoop2/flume 1.8.0/1.9.0) and guava-27 (hadoop3).

Other answers don't explain the root cause of the issue: the script under $FLUME_HOME/bin/flume-ng puts into flume classpath all the jars in our hadoop distribution if $HADOOP_HOME environment variable is set.

Few words on why the suggested actions "fix" the problem: deleting $FLUME_HOME/lib/guava-11.0.2.jar leaves only guava-27.0-jre.jar, no more clash.

So, there is no need to copy it under $FLUME_HOME/lib, and it's no bug from Flume, just a version incompatibility because Flume did not upgrade Guava, while Hadoop 3 did.

I did not dig into the details of the changes between those guava versions, it might happen that everything works fine until it does not (for instance, if there is any backward incompatible change between the two).

So, before using this "fix" in production environment, I suggest to test extensively to reduce the risk of unexpected problems.

The best solution would be to wait (or contribute) a new Flume version where Guava is upgrade to v27.