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我正在尝试在一项工作中链接地图并减少阶段。问题是我在 hadoop 0.20.2 下运行,并且该软件包org.apache.hadoop.mapred.lib.Chain似乎已被弃用并被org.apache.hadoop.mapreduce.lib.chain0.20.2 版本(仅 0.21.0 版本)不可用的软件包取代
org.apache.hadoop.mapred.lib.Chain
org.apache.hadoop.mapreduce.lib.chain
我的问题是:我应该怎么做才能将org.apache.hadoop.mapreduce.lib.chain包导入我的项目?是否有要应用的补丁或更新?