﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>博客园-Technologies Kingdom-最新评论</title><link>http://www.cnblogs.com/OnlyXP/CommentsRSS.aspx</link><description>无境界</description><language>zh-cn</language><pubDate>Thu, 24 Mar 2011 09:04:05 GMT</pubDate><lastBuildDate>Thu, 24 Mar 2011 09:04:05 GMT</lastBuildDate><generator>cnblogs</generator><item><title>Re:Hadoop Ecosystem解决方案---数据仓库</title><link>http://www.cnblogs.com/OnlyXP/archive/2011/03/28/1583450.html#2056748</link><dc:creator>qianxun</dc:creator><author>qianxun</author><pubDate>Mon, 28 Mar 2011 12:26:35 GMT</pubDate><guid>http://www.cnblogs.com/OnlyXP/archive/2011/03/28/1583450.html#2056748</guid><description><![CDATA[hadoop用hdfs和kfs 哪个效果更好？<br><br><div align=right><a style="text-decoration:none;" href="http://www.cnblogs.com/OnlyXP/" target="_blank">qianxun</a> 2011-03-28 20:26 <a href="http://www.cnblogs.com/OnlyXP/archive/2011/03/28/1583450.html#2056748#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Re:Hadoop Ecosystem解决方案---数据仓库</title><link>http://www.cnblogs.com/OnlyXP/archive/2011/03/28/1583450.html#2056747</link><dc:creator>qianxun</dc:creator><author>qianxun</author><pubDate>Mon, 28 Mar 2011 12:25:35 GMT</pubDate><guid>http://www.cnblogs.com/OnlyXP/archive/2011/03/28/1583450.html#2056747</guid><description><![CDATA[Hadoop HDFS VS KFS

    KFS采用C++实现.HDFS采用Java,与Hadoop整个生态系统结合紧密. 从效率上来讲, KFS要略胜一筹. 

这个你测试过吗？hadoop用kfs和hdfs，哪个效率更好？<br><br><div align=right><a style="text-decoration:none;" href="http://www.cnblogs.com/OnlyXP/" target="_blank">qianxun</a> 2011-03-28 20:25 <a href="http://www.cnblogs.com/OnlyXP/archive/2011/03/28/1583450.html#2056747#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Re:从网络上整理的google c++编程风格指南</title><link>http://www.cnblogs.com/OnlyXP/archive/2011/03/08/1421015.html#2040955</link><dc:creator>messifan</dc:creator><author>messifan</author><pubDate>Tue, 08 Mar 2011 02:04:01 GMT</pubDate><guid>http://www.cnblogs.com/OnlyXP/archive/2011/03/08/1421015.html#2040955</guid><description><![CDATA[好东西，谢谢分享<br><br><div align=right><a style="text-decoration:none;" href="http://www.cnblogs.com/OnlyXP/" target="_blank">messifan</a> 2011-03-08 10:04 <a href="http://www.cnblogs.com/OnlyXP/archive/2011/03/08/1421015.html#2040955#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Re:Hadoop Ecosystem解决方案---数据仓库</title><link>http://www.cnblogs.com/OnlyXP/archive/2011/01/11/1583450.html#2008445</link><dc:creator>hubing</dc:creator><author>hubing</author><pubDate>Tue, 11 Jan 2011 09:59:39 GMT</pubDate><guid>http://www.cnblogs.com/OnlyXP/archive/2011/01/11/1583450.html#2008445</guid><description><![CDATA[AvatarNode实现NameNode HA
更加可行！
FACEBOOK就是用这个的，不过只能用与HADOOP 0.20版本的，暂时不能用于0.21
他的切换时间可以在1分钟内实现
<br><br><div align=right><a style="text-decoration:none;" href="http://www.cnblogs.com/OnlyXP/" target="_blank">hubing</a> 2011-01-11 17:59 <a href="http://www.cnblogs.com/OnlyXP/archive/2011/01/11/1583450.html#2008445#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Re:hadoop作业调度 - 源码分析</title><link>http://www.cnblogs.com/OnlyXP/archive/2010/12/26/1467774.html#1997702</link><dc:creator>旭日乘风</dc:creator><author>旭日乘风</author><pubDate>Sun, 26 Dec 2010 13:58:43 GMT</pubDate><guid>http://www.cnblogs.com/OnlyXP/archive/2010/12/26/1467774.html#1997702</guid><description><![CDATA[@liangzhimy
当然，hadoop 是从nucth中剥离出来的，nucth是一个基于lucene的搜索引擎，所以，你要了解hadoop与lucene你可以看看nucth源码，呵呵,lucene,nutch,hadoop都是大牛Doug Cutting的作品<br><br><div align=right><a style="text-decoration:none;" href="http://www.cnblogs.com/OnlyXP/" target="_blank">旭日乘风</a> 2010-12-26 21:58 <a href="http://www.cnblogs.com/OnlyXP/archive/2010/12/26/1467774.html#1997702#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Re:epoll精髓</title><link>http://www.cnblogs.com/OnlyXP/archive/2010/07/24/851222.html#1878555</link><dc:creator>Soli</dc:creator><author>Soli</author><pubDate>Sat, 24 Jul 2010 02:54:54 GMT</pubDate><guid>http://www.cnblogs.com/OnlyXP/archive/2010/07/24/851222.html#1878555</guid><description><![CDATA[[quote]jhorne：--引用--------------------------------------------------
&lt;br/&gt;123we: 可以使用buffer来解决socket_send的问题，不用阻塞，只是send的buffer写满后，再检查EPOLLOUT，然后继续写剩余的buffer
&lt;br/&gt;--------------------------------------------------------
&lt;br/&gt;这话是什么意思呢？ 非阻塞socket 调用一次send 然后等待EPOLLOUT事件
&lt;br/&gt;等到了即是发送完毕了 是这样吗
&lt;br/&gt;
&lt;br/&gt;[/quote]

对于LT，应该是调用send后，如果buffer已满（即此次send失败），这才等待EPOLLOUT事件。
否则，EPOLLOUT会一直就绪，那就会死循环了。

while(1)
{
epoll_wait(); // 空闲时，这个地方不会阻塞
if(EPOLLOUT)
...
}<br><br><div align=right><a style="text-decoration:none;" href="http://www.cnblogs.com/OnlyXP/" target="_blank">Soli</a> 2010-07-24 10:54 <a href="http://www.cnblogs.com/OnlyXP/archive/2010/07/24/851222.html#1878555#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Re:UCenter的安全漏洞</title><link>http://www.cnblogs.com/OnlyXP/archive/2009/12/15/1622831.html#1724478</link><dc:creator>dz_redstone</dc:creator><author>dz_redstone</author><pubDate>Tue, 15 Dec 2009 05:33:04 GMT</pubDate><guid>http://www.cnblogs.com/OnlyXP/archive/2009/12/15/1622831.html#1724478</guid><description><![CDATA[if($timestamp - $get['time'] &gt; 3600) {
	exit('Authracation has expiried');
}
有这段代码啊，一个小时候以后就失效了。
<br><br><div align=right><a style="text-decoration:none;" href="http://www.cnblogs.com/OnlyXP/" target="_blank">dz_redstone</a> 2009-12-15 13:33 <a href="http://www.cnblogs.com/OnlyXP/archive/2009/12/15/1622831.html#1724478#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Re:UCenter的安全漏洞</title><link>http://www.cnblogs.com/OnlyXP/archive/2009/12/14/1622831.html#1723789</link><dc:creator>云里阿</dc:creator><author>云里阿</author><pubDate>Mon, 14 Dec 2009 10:44:04 GMT</pubDate><guid>http://www.cnblogs.com/OnlyXP/archive/2009/12/14/1622831.html#1723789</guid><description><![CDATA[@Jack Niu
严格意义上，这是个漏洞,只不过是一个事后漏洞,
1. ucenter本身的设计不合理，因为他没有提供鉴权api.
2. uchome对账户的鉴权机制不完备,只简单判断uid存在性.
所以,只要用户帐号被盗过之后,用户就算追溯回并修改密码，日后仍然可被侵入.

严格的鉴权一定要落到ucenter进行才有意义.单凭加密凭据是不够安全的.
本人曾从事过大规模SSO系统的设计，客观上来说，ucenter/uchome不是一个非常&quot;可靠&quot;的系统.
ucenter不够&quot;中心化&quot;.<br><br><div align=right><a style="text-decoration:none;" href="http://www.cnblogs.com/OnlyXP/" target="_blank">云里阿</a> 2009-12-14 18:44 <a href="http://www.cnblogs.com/OnlyXP/archive/2009/12/14/1622831.html#1723789#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Re:UCenter的安全漏洞</title><link>http://www.cnblogs.com/OnlyXP/archive/2009/12/14/1622831.html#1723459</link><dc:creator>Jack Niu</dc:creator><author>Jack Niu</author><pubDate>Mon, 14 Dec 2009 04:22:26 GMT</pubDate><guid>http://www.cnblogs.com/OnlyXP/archive/2009/12/14/1622831.html#1723459</guid><description><![CDATA[不过，UC相对来说，还算是比较不错的系统了
--[url=http://jack-fx.com]Jack[/url]<br><br><div align=right><a style="text-decoration:none;" href="http://www.cnblogs.com/OnlyXP/" target="_blank">Jack Niu</a> 2009-12-14 12:22 <a href="http://www.cnblogs.com/OnlyXP/archive/2009/12/14/1622831.html#1723459#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Re:UCenter的安全漏洞</title><link>http://www.cnblogs.com/OnlyXP/archive/2009/12/14/1622831.html#1723230</link><dc:creator>感觉没了</dc:creator><author>感觉没了</author><pubDate>Mon, 14 Dec 2009 00:42:53 GMT</pubDate><guid>http://www.cnblogs.com/OnlyXP/archive/2009/12/14/1622831.html#1723230</guid><description><![CDATA[@onlyxp

看这么多回复，你还认为是UC的漏洞？？？？

按照你的说法，第二条如果成立算是UC的漏洞

但是你那个假设前提？？？

搞笑！

你这个标题误导人，建议改一下！<br><br><div align=right><a style="text-decoration:none;" href="http://www.cnblogs.com/OnlyXP/" target="_blank">感觉没了</a> 2009-12-14 08:42 <a href="http://www.cnblogs.com/OnlyXP/archive/2009/12/14/1622831.html#1723230#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>
