flume三：flume Channel selector介绍

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最新推荐文章于 2025-06-24 09:02:14 发布

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本文介绍了Flume中三种选择器的配置与使用方法：复制型通道选择器(ReplicatingChannelSelector)、多路复用型通道选择器(MultiplexingChannelSelector)及自定义通道选择器(CustomChannelSelector)。通过具体的配置实例，帮助读者理解如何根据需求选择合适的选择器。

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flume默认提供以下Selectors：

Replicating Channel Selector

a1.sources = r1

a1.channels = c1 c2 c3
a1.sources.r1.selector.type = replicating
a1.sources.r1.channels = c1 c2 c3
a1.sources.r1.selector.optional = c3

Multiplexing Channel Selector
a1.sources = r1
a1.channels = c1 c2 c3 c4
a1.sources.r1.selector.type = multiplexing
a1.sources.r1.selector.header = state
a1.sources.r1.selector.mapping.CZ = c1
a1.sources.r1.selector.mapping.US = c2 c3
a1.sources.r1.selector.default = c4

Custom Channel Selector
自定义selector,需要实现ChannelSelector接口
a1.sources = r1
a1.channels = c1
a1.sources.r1.selector.type = org.example.MyChannelSelector