有人能帮我吗。我在运行一个flume代理。运行之后，它给了我一个异常，如下所示。
在com.mapr.fs.maprclientimpl.create（maprclientimpl。java:159)在com.mapr.fs.maprfilesystem.create（maprfilesystem。java:640)在com.mapr.fs.maprfilesystem.create（maprfilesystem。java:682)在org.apache.hadoop.fs.filesystem.create（filesystem。java:809)在org.apache.flume.sink.hdfs.hdfsdatastream.doopen（hdfsdatastream。java:86)在org.apache.flume.sink.hdfs.hdfsdatastream.open（hdfsdatastream。java:113)在org.apache.flume.sink.hdfs.bucketwriter$1.call（bucketwriter。java:275)在org.apache.flume.sink.hdfs.bucketwriter$1.call（bucketwriter。java:264)在org.apache.flume.sink.hdfs.bucketwriter$9$1.run（bucketwriter。java:720)在org.apache.flume.sink.hdfs.bucketwriter.runprivileged（bucketwriter。java:183)访问org.apache.flume.sink.hdfs.bucketwriter.access$1700（bucketwriter。java:59)在org.apache.flume.sink.hdfs.bucketwriter$9.call（bucketwriter。java:717)在java.util.concurrent.futuretask.run（futuretask。java:262)位于java.util.concurrent.threadpoolexecutor.runworker（threadpoolexecutor。java:1145)在java.util.concurrent.threadpoolexecutor$worker.run（threadpoolexecutor。java:615)在java.lang.thread.run（线程。java:745)