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	<title>架构 - 四号程序员</title>
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		<title>npm网站的架构:如何应对扩大了十倍的访问量</title>
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		<pubDate>Wed, 11 Mar 2015 12:31:52 +0000</pubDate>
				<category><![CDATA[计算机技术]]></category>
		<category><![CDATA[npm]]></category>
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					<description><![CDATA[npm服务的架构变迁：如何支撑 129K packages 239 GB package tarballs 40 million pkg dls/day 1500 req/sec, peak 3200 我来小结下： 使用NOSQL Couchdb，且一写多读，P2P复制(DB内置支持)。 文件用nginx+文件系统存放，DB中只记录信息 很矫情的使用了Couchdb，这个是不支持cluster的，所以用了haproxy和pound两种负载均衡的反[......] 继续阅读]]></description>
		
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