1、错误如下所示，启动flume采集文件到hdfs案例的时候，出现如下所示的错误：
大概是说No channel configured for sink，所以应该是sink哪里配置出现了错误，百度了一下，然后检查了一下自己的配置:
1 18/04/24 08:31:02 WARN conf.FlumeConfiguration: Could not configure sink ?sink1 due to: No channel configured for sink: sink1 2 org.apache.flume.conf.ConfigurationException: No channel configured for sink: sink1 3 ????at org.apache.flume.conf.sink.SinkConfiguration.configure(SinkConfiguration.java:51) 4 ????at org.apache.flume.conf.FlumeConfiguration$AgentConfiguration.validateSinks(FlumeConfiguration.java:681) 5 ????at org.apache.flume.conf.FlumeConfiguration$AgentConfiguration.isValid(FlumeConfiguration.java:347) 6 ????at org.apache.flume.conf.FlumeConfiguration$AgentConfiguration.access$000(FlumeConfiguration.java:213) 7 ????at org.apache.flume.conf.FlumeConfiguration.validateConfiguration(FlumeConfiguration.java:127) 8 ????at org.apache.flume.conf.FlumeConfiguration.<init>(FlumeConfiguration.java:109) 9 ????at org.apache.flume.node.PropertiesFileConfigurationProvider.getFlumeConfiguration(PropertiesFileConfigurationProvider.java:189)10 ????at org.apache.flume.node.AbstractConfigurationProvider.getConfiguration(AbstractConfigurationProvider.java:89)11 ????at org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable.run(PollingPropertiesFileConfigurationProvider.java:140)12 ????at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)13 ????at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)14 ????at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)15 ????at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)16 ????at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)17 ????at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)18 ????at java.lang.Thread.run(Thread.java:745)19 18/04/24 08:31:02 INFO conf.FlumeConfiguration: Post-validation flume configuration contains configuration for agents: [agent1]
2、解决方法如下所示：
参考链接如https://stackoverflow.com/questions/31798967/flume-could-not-configure-sink-no-channel-configured-for-sink
作者说应该是下面那种配置，一下子就明白了，自己的配置错误了，自己的如下所示：
修改以后，继续启动，解决问题。
[hadoop@slaver1 soft]$ flume-ng agent -n agent1 -c conf -f flume-1.5.0-cdh5.3.6-bin/conf/flume-conf.properties -Dflume.root.logger=DEBUG,console
WARN conf.FlumeConfiguration: Could not configure sink ?sink1 due to: No channel configured for sink: sink1 org.apache.flume.conf.ConfigurationException: No channel configured for sink: sink1
原文地址：https://www.cnblogs.com/biehongli/p/8933559.html