flume拦截器失效

[我看你看我Q]

我在测试flume1.6时，配置拦截器失效，但是数据能够正常接受，配置文件如下：

a1.sources = r1
a1.sinks = k1
a1.channels = c1

# Describe/configure the source
a1.sources.r1.type = exec
a1.sources.r1.channels = c1
a1.sources.r1.command = tail -F /tmp/spooldir/flume.log
#set 拦截器
a1.sources.r1.interceptors= i1
a1.sources.r1.interceptors.i1.type = host
a1.sources.r1.interceptors.i1.useIP = true
# Describe the sink
a1.sinks.k1.type = logger

# Use a channel which buffers events in memory
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100

# Bind the source and sink to the channel
a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1

flume启动正常，数据接受正常，如下图：


哪位大神指点下！

[我看你看我Q]

？？什么意思

[AmazingWg]

配置source时多了一行a1.sources.r1.channels = c1，可以改完之后试试