20/10/20 11:26:48 ERROR node.AbstractConfigurationProvider: Source r1 has been removed due to an error during configuration
org.apache.flume.FlumeException: Selector channel not found: c2

检查配置文件,发现
[错误收集]Flume Selector channel not found: c2_bug
这里写成了 c2i …

修改成 c2 再运行 发现能正常运行了