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	<title>ZooKeeper - 四号程序员</title>
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		<title>[转]ZooKeeper典型应用场景一览</title>
		<link>https://www.coder4.com/archives/3856</link>
					<comments>https://www.coder4.com/archives/3856#comments</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Mon, 25 Mar 2013 06:49:55 +0000</pubDate>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[大数据技术]]></category>
		<category><![CDATA[ZooKeeper]]></category>
		<category><![CDATA[应用场景]]></category>
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					<description><![CDATA[转载自：http://rdc.taobao.com/team/jm/archives/1232 这篇文章写的非常贴近实际，比官方好！ ZooKeeper是一个高可用的分布式数据管理与系统协调框架。基于对Paxos算法的实现，使该框架保证了分布式环境中数据的强一致性，也正是基于这样的特性，使得ZooKeeper解决很多分布式问题。网上对ZK的应用场景也有不少介绍，本文将结合作者身边的项目例子，系统地对ZK的应用场景进行一个分门归类的介绍。 值得注意的是，ZK并非天生就是为这些应用[......] 继续阅读]]></description>
		
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		<title>关于Zookeeper中Session Expired和Watch</title>
		<link>https://www.coder4.com/archives/3181</link>
					<comments>https://www.coder4.com/archives/3181#comments</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Mon, 21 May 2012 07:31:48 +0000</pubDate>
				<category><![CDATA[大数据技术]]></category>
		<category><![CDATA[Session Expired]]></category>
		<category><![CDATA[Watch]]></category>
		<category><![CDATA[ZooKeeper]]></category>
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					<description><![CDATA[信息来源： (1)Zookeeper邮件列表 (2)zookeeper学习记录三(session,watcher,persit机制) (3)ZooKeeper FAQ 见  http://jm-blog.aliapp.com/?p=1384 1、什么是Session Expired 通常是zk客户端与服务器的连接断了，试图连接上新的zk机器，这个过程如果耗时过长，超过 SESSION_TIMEOUT 后还没有成功连接上服务器，那么服务器认为这个session已经结束了（服务[......] 继续阅读]]></description>
		
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			<slash:comments>3</slash:comments>
		
		
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		<title>Zookeeper中几种数据事件的触发、设置条件</title>
		<link>https://www.coder4.com/archives/3164</link>
					<comments>https://www.coder4.com/archives/3164#respond</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Wed, 16 May 2012 12:21:42 +0000</pubDate>
				<category><![CDATA[大数据技术]]></category>
		<category><![CDATA[ZooKeeper]]></category>
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					<description><![CDATA[本文小结下Zookeeper中4种数据事件(ZOO_CHANGED_EVENT, ZOO_CHILD_EVENT, ZOO_CREATED_EVENT, ZOO_DELETED_EVENT)的触发条件。 如下表所示：  事件 触发条件  Watcher设置函数 ZOO_CHANGED_EVENT only generated by watches on nodes zoo_exists / zoo_get ZOO_CHILD_EVENT only[......] 继续阅读]]></description>
		
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		<title>[转载]SO YOU WANT TO BE A ZOOKEEPER?</title>
		<link>https://www.coder4.com/archives/3161</link>
					<comments>https://www.coder4.com/archives/3161#respond</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Wed, 16 May 2012 10:06:47 +0000</pubDate>
				<category><![CDATA[大数据技术]]></category>
		<category><![CDATA[ZooKeeper]]></category>
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					<description><![CDATA[这篇文章写的很好，主要是使用Zookeeper开发应用程序中遇到的一些很实际的问题。 转载自：《SO YOU WANT TO BE A ZOOKEEPER?》 This article is about some specific things I learned about Apache ZooKeeper. Apache ZooKeeper is useful if you are writing a distributed application and need coordi[......] 继续阅读]]></description>
		
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		<title>ZooKeeper 3.4.3</title>
		<link>https://www.coder4.com/archives/3122</link>
					<comments>https://www.coder4.com/archives/3122#respond</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Mon, 07 May 2012 03:16:06 +0000</pubDate>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[大数据技术]]></category>
		<category><![CDATA[ZooKeeper]]></category>
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					<description><![CDATA[ZooKeeper是做什么的呢？总体上来说： 针对分布式系统的： (1)结点管理，特别是集群很大时。 (2)配置文件，特别是需要反复改动的配置。 (3)协同、同步。 自己做实验的话，StandAlone模式就行。 1、下载 wget http://apache.spinellicreations.com/zookeeper/zookeeper-3.4.3/zookeeper-3.4.3.tar.gz tar -xzvf zookeeper-3.4.3.tar.gz 2、[......] 继续阅读]]></description>
		
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