解决flume监听文件夹，上传文件时出现java.nio.charset.MalformedInputException: Input length = 1

 使用flume监听文件夹报错:
java.nio.charset.MalformedInputException: Input length = 1
at java.nio.charset.CoderResult.throwException(CoderResult.java:281) ~[?:1.8.0_151]
at org.apache.flume.serialization.ResettableFileInputStream.readChar(ResettableFileInputStream.java:282) ~[flume-ng-core-1.10.0.jar:1.10.0]
at org.apache.flume.serialization.LineDeserializer.readLine(LineDeserializer.java:132) ~[flume-ng-core-1.10.0.jar:1.10.0]
at org.apache.flume.serialization.LineDeserializer.readEvent(LineDeserializer.java:70) ~[flume-ng-core-1.10.0.jar:1.10.0]
at org.apache.flume.serialization.LineDeserializer.readEvents(LineDeserializer.java:89) ~[flume-ng-core-1.10.0.jar:1.10.0]
at org.apache.flume.client.avro.ReliableSpoolingFileEventReader.readDeserializerEvents(ReliableSpoolingFileEventReader.java:426) ~[flume-ng-core-1.10.0.jar:1.10.0]
at org.apache.flume.client.avro.ReliableSpoolingFileEventReader.readEvents(ReliableSpoolingFileEventReader.java:401) ~[flume-ng-core-1.10.0.jar:1.10.0]
at org.apache.flume.source.SpoolDirectorySource$SpoolDirectoryRunnable.run(SpoolDirectorySource.java:263)[flume-ng-core-1.10.0.jar:1.10.0]atjava.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_151]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [?:1.8.0_151]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)[?:1.8.0_{1}51]atjava.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) [?:1.8.0_151]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_151]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_151]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_151]
^C[root@node1 t3]# flume-ng agent --conf conf/ --name a1 --conf-file flume-file-hdfs.conf
Info: Including Hadoop libraries found via (/usr/local/hadoop271/bin/hadoop) for HDFS access
Info: Including Hive libraries found via () for Hive access

• exec /usr/local/java/jdk1.8.0_151/bin/java -Xmx20m -cp ‘conf/:/opt/flume110/lib/:/usr/local/hadoop271/etc/hadoop:/usr/local/hadoop271/share/hadoop/common/lib/:/usr/local/hadoop271/share/hadoop/common/:/usr/local/hadoop271/share/hadoop/hdfs:/usr/local/hadoop271/share/hadoop/hdfs/lib/:/usr/local/hadoop271/share/hadoop/hdfs/:/usr/local/hadoop271/share/hadoop/yarn/lib/:/usr/local/hadoop271/share/hadoop/yarn/:/usr/local/hadoop271/share/hadoop/mapreduce/lib/:/usr/local/hadoop271/share/hadoop/mapreduce/:/usr/local/hadoop271/contrib/capacity-scheduler/.jar:/lib/*’ -Djava.library.path=:/usr/local/hadoop271/lib/native org.apache.flume.node.Application --name a1 --conf-file flume-file-hdfs.conf
  09:44:27.616 [pool-5-thread-1] ERROR org.apache.flume.source.SpoolDirectorySource - FATAL: Spool Directory source r1: { spoolDir: /tmp/t }: Uncaught exception in SpoolDirectorySource thread. Restart or reconfigure Flume to continue processing.
  java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: /tmp/t/.flumespool/???.txt.COMPLETED
  at sun.nio.fs.UnixPath.encode(UnixPath.java:147) ~[?:1.8.0_151]
  at sun.nio.fs.UnixPath.(UnixPath.java:71) ~[?:1.8.0_151]
  at sun.nio.fs.UnixFileSystem.getPath(UnixFileSystem.java:281) ~[?:1.8.0_151]
  at java.nio.file.Paths.get(Paths.java:84) ~[?:1.8.0_151]
  at org.apache.flume.client.avro.ReliableSpoolingFileEventReader.isFileInTrackerDir(ReliableSpoolingFileEventReader.java:330) ~[flume-ng-core-1.10.0.jar:1.10.0]
  at org.apache.flume.client.avro.ReliableSpoolingFileEventReader.access$300(ReliableSpoolingFileEventReader.java:92) ~[flume-ng-core-1.10.0.jar:1.10.0]
  at org.apache.flume.client.avro.ReliableSpoolingFileEventReader$1.visitFile(ReliableSpoolingFileEventReader.java:287) ~[flume-ng-core-1.10.0.jar:1.10.0]
  at org.apache.flume.client.avro.ReliableSpoolingFileEventReader$1.visitFile(ReliableSpoolingFileEventReader.java:266)[flume-ng-core-1.10.0.jar:1.10.0]atjava.nio.file.Files.walkFileTree(Files.java:2670)[?:1.8.0_{1}51]atjava.nio.file.Files.walkFileTree(Files.java:2742)[?:1.8.0_{1}51]atorg.apache.flume.client.avro.ReliableSpoolingFileEventReader.getCandidateFiles(ReliableSpoolingFileEventReader.java:266)[flume-ng-core-1.10.0.jar:1.10.0]atorg.apache.flume.client.avro.ReliableSpoolingFileEventReader.getNextFile(ReliableSpoolingFileEventReader.java:629)[flume-ng-core-1.10.0.jar:1.10.0]atorg.apache.flume.client.avro.ReliableSpoolingFileEventReader.readEvents(ReliableSpoolingFileEventReader.java:393)[flume-ng-core-1.10.0.jar:1.10.0]atorg.apache.flume.source.SpoolDirectorySource$SpoolDirectoryRunnable.run(SpoolDirectorySource.java:263) [flume-ng-core-1.10.0.jar:1.10.0]
  at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[?:1.8.0_{1}51]atjava.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)[?:1.8.0_{1}51]atjava.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)[?:1.8.0_{1}51]atjava.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) [?:1.8.0_151]
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_151]
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_151]
  at java.lang.Thread.run(Thread.java:748) [?:1.8.0_151]
  
  
   解决: 上传文件名不要有中文，上传.txt .log文件，一定要是日志文本可读的文件。 因为我上传了exe，然后又上传了 中文名的文件，就报错了。
   Flume是海量日志采集工具
   最后上传一个文本就好了