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	<title>评论：MySQL/InnoDB源代码：线程并发访问控制</title>
	<atom:link href="http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/</link>
	<description>一个故事@MySQL DBA</description>
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		<title>来自：Mysql上层加锁逻辑续 &#124; MySQLOPS 数据库与运维自动化技术分享</title>
		<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/comment-page-1/#comment-3350</link>
		<dc:creator>Mysql上层加锁逻辑续 &#124; MySQLOPS 数据库与运维自动化技术分享</dc:creator>
		<pubDate>Mon, 05 Dec 2011 12:05:51 +0000</pubDate>
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		<description>[...] [4]http://www.orczhou.com/index.php/2010/06/mysql-InnoDB-source-code-sync-1/ Mysql/InnoDB源代码：线程并发访问控制 [...]</description>
		<content:encoded><![CDATA[<p>[...] [4]http://www.orczhou.com/index.php/2010/06/mysql-InnoDB-source-code-sync-1/ Mysql/InnoDB源代码：线程并发访问控制 [...]</p>
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	<item>
		<title>来自：MySQL/InnoDB和Group Commit - 一个故事@MySQL DBA</title>
		<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/comment-page-1/#comment-2625</link>
		<dc:creator>MySQL/InnoDB和Group Commit - 一个故事@MySQL DBA</dc:creator>
		<pubDate>Sun, 19 Jun 2011 16:09:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.orczhou.com/?p=2173#comment-2625</guid>
		<description>[...] 在innobase_xa_prepare函数中需要需要获取排他锁prepare_commit_mutex，直到上面的第一阶段结束才释放该排他锁。这意味着，上面的“第一阶段”就无法再并发一次性提交fsync了，即Group Commit也就无法完成了。（注：第一阶段包括了binlog的fsync操作，直到整个第一阶段结束prepare_commit_mutex才释放，所以Binlog就无法Group commit了，如果prepare_commit_mutex提前释放了，则可能导致InnoDB内部的事务顺序和Binlog内部事务的顺序不一致，Replication就没有意义了） 2.2 Facebook的解决方案 [...]</description>
		<content:encoded><![CDATA[<p>[...] 在innobase_xa_prepare函数中需要需要获取排他锁prepare_commit_mutex，直到上面的第一阶段结束才释放该排他锁。这意味着，上面的“第一阶段”就无法再并发一次性提交fsync了，即Group Commit也就无法完成了。（注：第一阶段包括了binlog的fsync操作，直到整个第一阶段结束prepare_commit_mutex才释放，所以Binlog就无法Group commit了，如果prepare_commit_mutex提前释放了，则可能导致InnoDB内部的事务顺序和Binlog内部事务的顺序不一致，Replication就没有意义了） 2.2 Facebook的解决方案 [...]</p>
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	</item>
	<item>
		<title>来自：唐超</title>
		<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/comment-page-1/#comment-1600</link>
		<dc:creator>唐超</dc:creator>
		<pubDate>Thu, 06 Jan 2011 05:39:49 +0000</pubDate>
		<guid isPermaLink="false">http://www.orczhou.com/?p=2173#comment-1600</guid>
		<description>我预谋1年。一直无从下手。。膜拜大神。。期待更多作品</description>
		<content:encoded><![CDATA[<p>我预谋1年。一直无从下手。。膜拜大神。。期待更多作品</p>
]]></content:encoded>
	</item>
	<item>
		<title>来自：nana0730</title>
		<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/comment-page-1/#comment-1247</link>
		<dc:creator>nana0730</dc:creator>
		<pubDate>Tue, 07 Sep 2010 05:59:38 +0000</pubDate>
		<guid isPermaLink="false">http://www.orczhou.com/?p=2173#comment-1247</guid>
		<description>可否留个qq或者阿里旺旺，交流下。。</description>
		<content:encoded><![CDATA[<p>可否留个qq或者阿里旺旺，交流下。。</p>
]]></content:encoded>
	</item>
	<item>
		<title>来自：nana0730</title>
		<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/comment-page-1/#comment-1246</link>
		<dc:creator>nana0730</dc:creator>
		<pubDate>Tue, 07 Sep 2010 05:57:58 +0000</pubDate>
		<guid isPermaLink="false">http://www.orczhou.com/?p=2173#comment-1246</guid>
		<description>楼主是淘宝的DBA哦，敬仰敬仰。。</description>
		<content:encoded><![CDATA[<p>楼主是淘宝的DBA哦，敬仰敬仰。。</p>
]]></content:encoded>
	</item>
	<item>
		<title>来自：MySQL/InnoDB源代码：线程并发访问控制(续) - 一个故事@MySQL DBA</title>
		<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/comment-page-1/#comment-1030</link>
		<dc:creator>MySQL/InnoDB源代码：线程并发访问控制(续) - 一个故事@MySQL DBA</dc:creator>
		<pubDate>Tue, 06 Jul 2010 14:46:01 +0000</pubDate>
		<guid isPermaLink="false">http://www.orczhou.com/?p=2173#comment-1030</guid>
		<description>[...] Wish list           上一篇：MySQL/InnoDB源代码：线程并发访问控制 [...]</description>
		<content:encoded><![CDATA[<p>[...] Wish list           上一篇：MySQL/InnoDB源代码：线程并发访问控制 [...]</p>
]]></content:encoded>
	</item>
	<item>
		<title>来自：stronghearted</title>
		<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/comment-page-1/#comment-1017</link>
		<dc:creator>stronghearted</dc:creator>
		<pubDate>Fri, 02 Jul 2010 01:43:36 +0000</pubDate>
		<guid isPermaLink="false">http://www.orczhou.com/?p=2173#comment-1017</guid>
		<description>咋看到你最近在搞C了呢？现在明白了！</description>
		<content:encoded><![CDATA[<p>咋看到你最近在搞C了呢？现在明白了！</p>
]]></content:encoded>
	</item>
	<item>
		<title>来自：realzyy</title>
		<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/comment-page-1/#comment-1016</link>
		<dc:creator>realzyy</dc:creator>
		<pubDate>Fri, 02 Jul 2010 01:07:46 +0000</pubDate>
		<guid isPermaLink="false">http://www.orczhou.com/?p=2173#comment-1016</guid>
		<description>近距离膜拜高手！</description>
		<content:encoded><![CDATA[<p>近距离膜拜高手！</p>
]]></content:encoded>
	</item>
	<item>
		<title>来自：板桥</title>
		<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/comment-page-1/#comment-1014</link>
		<dc:creator>板桥</dc:creator>
		<pubDate>Thu, 01 Jul 2010 06:35:07 +0000</pubDate>
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		<description>好文顶啊！</description>
		<content:encoded><![CDATA[<p>好文顶啊！</p>
]]></content:encoded>
	</item>
	<item>
		<title>来自：orczhou</title>
		<link>http://www.orczhou.com/index.php/2010/06/mysql-innodb-source-code-sync-1/comment-page-1/#comment-1013</link>
		<dc:creator>orczhou</dc:creator>
		<pubDate>Thu, 01 Jul 2010 02:55:09 +0000</pubDate>
		<guid isPermaLink="false">http://www.orczhou.com/?p=2173#comment-1013</guid>
		<description>是的。看得出来，大量的封装和预定义都是为了跨平台考虑的</description>
		<content:encoded><![CDATA[<p>是的。看得出来，大量的封装和预定义都是为了跨平台考虑的</p>
]]></content:encoded>
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