This pattern has many variants, one service called active: mapper USES a resource containing a routing map between address Spaces.
该模式有很多变量，一个叫做active：mapper的服务使用了一个包含地址空间之间的路由映射的资源。
The mapper function effectively strips the IP address out of each line and returns it with a value of 1.
mapper函数提取出每行中的IP地址并返回它和值1。
The mapper function effectively strips the IP address out of each line and returns it with a value of 1.
mapper函数提取出每行中的IP地址并返回它和值1。
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