我尝试使用dynatrace作为flume的源，hadoop作为sink，其中dynatrace和flume在同一台服务器上，hadoop在另一台服务器上。
但是，在启动Flume时，出现以下错误：
错误[conf-file-poller-0]（org.apache.flume.conf.file.abstractfileconfigurationprovider$filewatcherrunnable）。run:211)-未处理的错误java.lang.nosuchmethoderror:org.slf4j.spi.locationawarelogger.log（lorg/slf4j/marker；ljava/lang/string；iljava/lang/string；ljava/lang/throwable；）v位于org.apache.commons.logging.impl.slf4jlocationawarelog.debug（slf4jlocationawarelog。java:120)在org.apache.hadoop.metrics2.impl.metricssystemimpl.register（metricssystemimpl。java:220)在org.apache.hadoop.metrics2.metricssystem.register（metricssystem。java:54)在org.apache.hadoop.security.usergroupinformation$ugimetrics.create（usergroupinformation。java:106)在org.apache.hadoop.security.usergroupinformation。java:208)位于org.apache.flume.sink.hdfs.hdfseventsink.authenticate（hdfseventsink）。java:529)位于org.apache.flume.sink.hdfs.hdfseventsink.configure（hdfseventsink）。java:247)在org.apache.flume.conf.configurables.configure（可配置文件）。java:41)位于org.apache.flume.conf.properties.propertiesfileconfigurationprovider.loadsinks（propertiesfileconfigurationprovider）。java:373)在org.apache.flume.conf.properties.propertiesfileconfigurationprovider.load（propertiesfileconfigurationprovider。java:223)在org.apache.flume.conf.file.abstractfileconfigurationprovider.doload（abstractfileconfigurationprovider）。java:123)访问org.apache.flume.conf.file.abstractfileconfigurationprovider.access$300（abstractfileconfigurationprovider）。java:38)在org.apache.flume.conf.file.abstractfileconfigurationprovider$filewatcherrunnable.run（abstractfileconfigurationprovider）。java:202)在java.util.concurrent.executors$runnableadapter.call（executors。java:471)在java.util.concurrent.futuretask.runandreset（futuretask。java:304)在java.util.concurrent.scheduledthreadpoolexecutor$scheduledfuturetask.access$301（scheduledthreadpoolexecutor。java:178)在java.util.concurrent.scheduledthreadpoolexecutor$scheduledfuturetask.run（scheduledthreadpoolexecutor。java:293)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)
这是我的flume配置文件：

# Name the components on this agent

QKDSK305.sources = HTTPSource
QKDSK305.sinks = PurePathSink UserActionSink VisitSink NullSink
QKDSK305.channels = PurePathChannel UserActionChannel VisitChannel NullChannel

# Describe/configure HTTPSource

QKDSK305.sources.HTTPSource.type = org.apache.flume.source.http.HTTPSource
QKDSK305.sources.HTTPSource.port = 4321
QKDSK305.sources.HTTPSource.handler = com.dynatrace.diagnostics.btexport.flume.BtExportHandler

# Describe sinks

QKDSK305.sinks.PurePathSink.type = hdfs
QKDSK305.sinks.PurePathSink.hdfs.path = hdfs://QKDSK303:9000/user/bts/pp
QKDSK305.sinks.PurePathSink.hdfs.fileType = DataStream
QKDSK305.sinks.PurePathSink.hdfs.filePrefix = export
QKDSK305.sinks.PurePathSink.hdfs.fileSuffix = .txt
QKDSK305.sinks.PurePathSink.hdfs.rollInterval = 120
QKDSK305.sinks.PurePathSink.hdfs.rollSize = 131072
QKDSK305.sinks.PurePathSink.serializer = com.dynatrace.diagnostics.btexport.flume.BtPurePathSerializerBuilder

QKDSK305.sinks.UserActionSink.type = hdfs
QKDSK305.sinks.UserActionSink.hdfs.path = hdfs://QKDSK303:9000/user/bts/pa
QKDSK305.sinks.UserActionSink.hdfs.fileType = DataStream
QKDSK305.sinks.UserActionSink.hdfs.filePrefix = export
QKDSK305.sinks.UserActionSink.hdfs.fileSuffix = .txt
QKDSK305.sinks.UserActionSink.hdfs.rollInterval = 120
QKDSK305.sinks.UserActionSink.hdfs.rollSize = 131072
QKDSK305.sinks.UserActionSink.serializer = com.dynatrace.diagnostics.btexport.flume.BtPageActionSerializerBuilder

QKDSK305.sinks.VisitSink.type = hdfs
QKDSK305.sinks.VisitSink.hdfs.path = hdfs://QKDSK303:9000/user/bts/visit
QKDSK305.sinks.VisitSink.hdfs.fileType = DataStream
QKDSK305.sinks.VisitSink.hdfs.filePrefix = export
QKDSK305.sinks.VisitSink.hdfs.fileSuffix = .txt
QKDSK305.sinks.VisitSink.hdfs.rollInterval = 120
QKDSK305.sinks.VisitSink.hdfs.rollSize = 131072
QKDSK305.sinks.VisitSink.serializer = com.dynatrace.diagnostics.btexport.flume.BtVisitSerializerBuilder
QKDSK305.sinks.VisitSink.serializer.charset = ISO-8859-2
QKDSK305.sinks.NullSink.type = null
QKDSK305.channels.NullChannel.type = memory

# Use a channel which buffers events in memory

QKDSK305.channels.PurePathChannel.type = memory
QKDSK305.channels.PurePathChannel.capacity = 1000
QKDSK305.channels.PurePathChannel.transactionCapactiy = 100

QKDSK305.channels.UserActionChannel.type = memory
QKDSK305.channels.UserActionChannel.capacity = 1000
QKDSK305.channels.UserActionChannel.transactionCapactiy = 100

QKDSK305.channels.VisitChannel.type = memory
QKDSK305.channels.VisitChannel.capacity = 1000
QKDSK305.channels.VisitChannel.transactionCapactiy = 100

# Bind the source and sink to the channel

QKDSK305.sources.HTTPSource.channels = PurePathChannel UserActionChannel VisitChannel NullChannel
QKDSK305.sinks.PurePathSink.channel = PurePathChannel
QKDSK305.sinks.UserActionSink.channel = UserActionChannel
QKDSK305.sinks.VisitSink.channel = VisitChannel
QKDSK305.sinks.NullSink.channel = NullChannel

QKDSK305.sources.HTTPSource.selector.type = multiplexing
QKDSK305.sources.HTTPSource.selector.header = btType
QKDSK305.sources.HTTPSource.selector.mapping.PUREPATH = PurePathChannel
QKDSK305.sources.HTTPSource.selector.mapping.PAGE_ACTION = UserActionChannel
QKDSK305.sources.HTTPSource.selector.mapping.VISIT = VisitChannel
QKDSK305.sources.HTTPSource.selector.default = NullChannel

请帮忙。
谢谢，普拉尼