**在运行flume命令时，我遇到了以下错误，我尝试更改.bashrc中的envi变量以及flume.env.sh中的classpath，但仍然没有用 Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar 16/12/08 01:57:11 INFO node.PollingPropertiesFileConfigurationProvider: Configuration provider starting 16/12/08 01:57:11 INFO node.PollingPropertiesFileConfigurationProvider: Reloading configuration file:../conf/twitter.conf 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Invalid property specified: sink.HDFS.hdfs.path 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Configuration property ignored: TwitterAgent.sink.HDFS.hdfs.path = hdfs://localhost:8020/datamain/tweets 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Invalid property specified: sink.HDFS.hdfs.writeFormat 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Configuration property ignored: TwitterAgent.sink.HDFS.hdfs.writeFormat = Text 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Invalid property specified: sink.HDFS.hdfs.rollCount 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Configuration property ignored: TwitterAgent.sink.HDFS.hdfs.rollCount = 10000 16/12/08 01:57:11 INFO conf.FlumeConfiguration: Added sinks: HDFS Agent: TwitterAgent 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Invalid property specified: sink.HDFS.hdfs.rollSize 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Configuration property ignored: TwitterAgent.sink.HDFS.hdfs.rollSize = 0 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Invalid property specified: sink.HDFS.channels 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Configuration property ignored: TwitterAgent.sink.HDFS.channels = MemChannel 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Invalid property specified: sink.HDFS.hdfs.batchSize 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Configuration property ignored: TwitterAgent.sink.HDFS.hdfs.batchSize = 1000 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Invalid property specified: sink.HDFS.hdfs.fileType 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Configuration property ignored: TwitterAgent.sink.HDFS.hdfs.fileType = DataStream 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Invalid property specified: sink.HDFS.type 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Configuration property ignored: TwitterAgent.sink.HDFS.type = hdfs 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Invalid property specified: sink.HDFS.hdfs.rollInterval 16/12/08 01:57:11 WARN conf.FlumeConfiguration: Configuration property ignored: TwitterAgent.sink.HDFS.hdfs.rollInterval = 600 16/12/08 01:57:11 WARN conf.FlumeConfiguration: no context for sinkHDFS 16/12/08 01:57:12 INFO conf.FlumeConfiguration: Post-validation flume configuration contains configuration for agents: [TwitterAgent] 16/12/08 01:57:12 INFO node.AbstractConfigurationProvider: Creating channels 16/12/08 01:57:12 INFO channel.DefaultChannelFactory: Creating instance of channel MemChannel type memory 16/12/08 01:57:12 INFO node.AbstractConfigurationProvider: Created channel MemChannel 16/12/08 01:57:12 INFO source.DefaultSourceFactory: Creating instance of source Twitter, type org.apache.flume.source.twitter.TwitterSource 16/12/08 01:57:12 ERROR node.PollingPropertiesFileConfigurationProvider: Failed to load configuration data. Exception follows. org.apache.flume.FlumeException: Unable to load source type: org.apache.flume.source.twitter.TwitterSource, class: org.apache.flume.source.twitter.TwitterSource at org.apache.flume.source.DefaultSourceFactory.getClass(DefaultSourceFactory.java:67) at org.apache.flume.source.DefaultSourceFactory.create(DefaultSourceFactory.java:40) at org.apache.flume.node.AbstractConfigurationProvider.loadSources(AbstractConfigurationProvider.java:327) at org.apache.flume.node.AbstractConfigurationProvider.getConfiguration(AbstractConfigurationProvider.java:102) at org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable.run(PollingPropertiesFileConfigurationProvider.java:140) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.ClassNotFoundException: org.apache.flume.source.twitter.TwitterSource at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:195) at org.apache.flume.source.DefaultSourceFactory.getClass(DefaultSourceFactory.java:65) ... 11 more**我在twitter.conf中的sink命令似乎也有问题，但我无法解决，下面是twitter.conf文件

`TwitterAgent.sources =Twitter
TwitterAgent.channels =MemChannel
TwitterAgent.sinks = HDFS

TwitterAgent.sources.Twitter.type = org.apache.flume.source.twitter.TwitterSource
TwitterAgent.sources.Twitter.channels = MemChannel
TwitterAgent.sources.Twitter.consumerKey = ###
TwitterAgent.sources.Twitter.consumerSecret = ###
TwitterAgent.sources.Twitter.accessToken = ###
TwitterAgent.sources.Twitter.accessTokenSecret = ####

TwitterAgent.sources.Twitter.keywords =donald trump,republican,democratic

TwitterAgent.channels.MemChannel.type =  memory
TwitterAgent.channels.MemChannel.capacity = 10000
TwitterAgent.channels.MemChannel.transactionCapacity = 10000

TwitterAgent.sink.HDFS.channels = MemChannel
TwitterAgent.sink.HDFS.type = hdfs
TwitterAgent.sink.HDFS.hdfs.path =hdfs://localhost:8020/datamain/tweets
TwitterAgent.sink.HDFS.hdfs.fileType = DataStream
TwitterAgent.sink.HDFS.hdfs.writeFormat = Text
TwitterAgent.sink.HDFS.hdfs.batchSize = 1000
TwitterAgent.sink.HDFS.hdfs.rollSize = 0
TwitterAgent.sink.HDFS.hdfs.rollCount = 10000
TwitterAgent.sink.HDFS.hdfs.rollInterval = 600  `

以下是我的flume.env.sh文件的详细信息

# to you under the Apache License, Version 2.0 (the

# "License"); you may not use this file except in compliance

# with the License.  You may obtain a copy of the License at

# 

# http://www.apache.org/licenses/LICENSE-2.0

# 

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

# If this file is placed at FLUME_CONF_DIR/flume-env.sh, it will be sourced

# during Flume startup.

# Enviroment variables can be set here.

JAVA_HOME=/usr/lib/jvm/java-7-openjdk-i386

# Give Flume more memory and pre-allocate, enable remote monitoring via JMX

JAVA_OPTS="-Xms500m -Xmx1000m -Dcom.sun.management.jmxremote"

# Note that the Flume conf directory is always included in the classpath.

FLUME_CLASSPATH=/home/user/hadoop_store/flume-sources-1.0-SNAPSHOT.jar

.bashrc详细信息

## Flume home directory

export FLUME_HOME=/home/user/hadoop_store/apache-flume-1.4.0-bin
export FLUME_CONF_DIR=$FLUME_HOME/conf
export FLUME_CLASSPATH=$FLUME_CONF_DIR

export PATH=$FLUME_HOME/bin:$PATH

## Flume home directory

尝试更改快照文件路径仍然无效，