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	<title>锁 - 四号程序员</title>
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		<title>分布式锁的开源实现Shedlock</title>
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		<pubDate>Sun, 14 Mar 2021 06:50:11 +0000</pubDate>
				<category><![CDATA[Java]]></category>
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		<category><![CDATA[distributed]]></category>
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					<description><![CDATA[https://github.com/lukas-krecan/ShedLock 存储支持数据库、Redis等[......] 继续阅读]]></description>
		
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		<title>关于gevent的微线程“eventlet”同步问题</title>
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		<pubDate>Tue, 20 Sep 2011 15:44:24 +0000</pubDate>
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		<category><![CDATA[Gevent]]></category>
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		<category><![CDATA[线程安全]]></category>
		<category><![CDATA[锁]]></category>
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					<description><![CDATA[理论上讲，Python是不存在线程安全问题的，由于GIT么，但是这是有前提的：sleep，I/O导致的wait都可能会引发线程安全隐患。 同理，gevent是基于事件驱动模型的，就不太可能是线程安全的。 gevent.coros.Semaphore提供了信号量的功能，可以是n个哦！ semaphore.acquire() -&#62; 获取“锁” semaphore.release() -&#62; 释放“锁” gevent的文档写的真简介啊，于是测试了个基本的同步方法：同[......] 继续阅读]]></description>
		
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