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	<title>setOutputkeyComparatorClass - 四号程序员</title>
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		<title>[转]Hadoop MapReduce 二次排序原理及其应用</title>
		<link>https://www.coder4.com/archives/4248</link>
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		<pubDate>Fri, 16 May 2014 06:16:38 +0000</pubDate>
				<category><![CDATA[大数据技术]]></category>
		<category><![CDATA[MapReduce]]></category>
		<category><![CDATA[setGroupingComparatorClass]]></category>
		<category><![CDATA[setOutputkeyComparatorClass]]></category>
		<category><![CDATA[setOutputValueGroupingComparator]]></category>
		<category><![CDATA[setSortComparatorClass]]></category>
		<category><![CDATA[二次排序]]></category>
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					<description><![CDATA[转载自：《Hadoop MapReduce 二次排序原理及应用》 关于二次排序主要涉及到这么几个东西： 在0.20.0以前使用的是 setPartitionerClass setOutputkeyComparatorClass setOutputValueGroupingComparator 在0.20.0以后使用是 job.setPartitionerClass(Partitioner p); job.setSortComparatorClass([......] 继续阅读]]></description>
		
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