AIX Storage Learning 1

Date: 2010.03.04 | Category: Operating System | Response: 0

AIX 5.3中设置大文件支持

AIX系统安装之后，默认不允许单个文件大小超过2G，对于企业应用系统来说，这个限制一般是需要去除的。
首先，取消安全方面的限制，需要修改配置文件/etc/security/limits，可以针对所有用户在default段修改，或者在指定user段来修改具体user的限制。下面是一个示例。设置成－1，表示取消大小限制。

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春节快乐！ Happy Spring Festival!

Date: 2010.02.13 | Category: Entertainment, In My Opinion | Response: 0

庚寅年到了，恭祝大家新春快乐，万事如意！

The year of Tiger is coming. Wish you all have a good time in Spring Festival, and hope ever­yone have a won­der­ful year just like a Tiger!

虎虎生威 岁月耀光辉
牛年告退 今夜辞旧岁
财神到任 祈求唤风顺
展翅若鹏 蓄势待功成
厚德载物 飞腾展宏图
齐天洪福 家给人富足
新春相贺 祝愿您快乐
徵羽之操 莫逆八拜交
合家团圆 欢喜贺新年

Sun is to the end of life

Date: 2010.01.22 | Category: Sun | Response: 0

As Euro Commi­ssion clears Oracle’s pro­po­sed acqui­si­tion of Sun Mic­ro­systems, this acqui­si­tion is much clo­ser to the end. And I don’t think Russia and China will place obsta­cles for this deal, and it will finish in seve­ral days.

It is so pity and sad to hear that bad news. As a stu­dent, I took the most memo­ra­ble inter­n­ship at Sun and dee­ply fell into love with Sun’s uni­que cur­ture. Without an open envio­r­n­ment and a technology-first ideo­logy, every engi­neer can obtain an immea­su­ra­ble free­dom around tech­no­logy, so Sun crea­ted a lot of new tech­ni­que. Java, Sola­ris, ZFS, DTrace, netBeans, JavaFX, Lesture, Sto­ra­ge­Tek, Clu­ster, Vir­tua­lBox, MySQL, Ult­ra­SPARC, xVM….. All of them is so great that can change our world. I wor­ked for Sun for 8 mon­ths, but I can­not reme­mber all of Sun’s mature pro­duct, because Sun owns such a lot of good pro­je­cts or products.

In my family, I deplo­yed a NAS (Network Atta­ched Sto­rage) Server under Open­So­la­ris. with ZFS suppo­r­ted, I can easily possess a good network server to store my per­so­nal and family data with a high relia­bi­lity and a good per­fo­r­mance. And I also deplo­yed subver­sion, SAMP (Solaris+Apache+MySQL+PHP), Dyna­mic domain bin­ding, remo­ting desktop and so on into my box, and I got a won­der­ful family system cen­ter with Sun’s pro­duct. I love it!

I will never for­get that time wor­king for Sun in my life. I love Sun forever.

Good luck to all the Sunners.

Sun­set.
1982–2010

为cos-html-cache插件增加页面（Page）、标签（Tag）和分类（Category）的静态化功能

Date: 2010.01.16 | Category: In My Opinion, WordPress | Response: 0

Wordpress的cos-html-cache插件为我们系统的静态化提供了非常好的解决方案，目前的版本是2.7.3。它可以将我们首页及文章（Post）进行静态化，使得访问速度大大提高，减少了服务器端的压力。不过对于页面、标签和分类，却似乎不太起作用，至少在我的服务器环境下（IIS7.0+FastCGI）是不行的。

为了能够实现它们，我分析了一下源代码，发现功能没有开启，但是可以实现的。具体修改方法及目的如下：

找到如下三行：

1. if( substr_count($_SERVER[’REQUEST_URI’], ‘.htm’) || ( SCRIPT_URI == CosSiteHome) ){
2. if(  substr_count($_SERVER[’REQUEST_URI’], ‘../’))  $is_buffer = false;
3. if( !substr_count($buffer, ‘<!–cos-html-cache-safe-tag–>’) ) return  $buffer;

将他们分别做如下处理：

1. 修改为：
   if( strpos($_SERVER[’REQUEST_URI’], ‘page’)==1 || strpos($_SERVER[’REQUEST_URI’], ‘tag’)==1 || strpos($_SERVER[’REQUEST_URI’], ‘category’)==1 || substr_count($_SERVER[’REQUEST_URI’], ‘.htm’) || ( SCRIPT_URI == CosSiteHome) ){
2. 在本行下增加：
   if(  substr_count($_SERVER[’REQUEST_URI’], ‘comment’))  $is_buffer = false;
3. 前面加上“//”注释掉本行

分别的原理及目的：

1. 这个是在检测我们要静态化哪些文件，我为它增加了page、tag和category。当然，这个也和目录的模式有关，比如我的博客中，OpenSolaris的标签地址就是：http://www.priormind.com/tag/opensolaris。所以我就找到以tag开头的目录并静态化它们
2. 防止评论内容被静态化
3. 作者写了个函数，将singlepost（也就是单页页面）、首页都加上了一个安全标签（<!–cos-html-cache-safe-tag–>）。有这个标签的话将不被静态化。而我们需要它们静态化，所以就把这行注释掉好了

本人仅仅是尝试性修改，不保证其完全正确性。有兴趣的话大家可以试试看，呵呵。也欢迎一起交流。

How to configure Subversion in OpenSolaris

Date: 2010.01.13 | Category: Open Source | Response: 0

Recenly I am always thin­king about how to manage per­so­nal pro­g­rams, to save codes, to track chan­ges, and to ensure their safety. I combine two things toge­ther and get a solu­tion for my requi­re­ment, that is to use ZFS as per­si­stent sto­rage and use Subver­sion as a ver­sio­ning con­t­ro­ller, to ensure my codes can be safely saved and well mana­ged. So today I will talk some­thing about how to con­fi­gure subver­sion in OpenSolaris.

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转载：IIS FastCGI PHP 环境下搭建 WordPress

Date: 2010.01.12 | Category: Learn from Others, Web Back-end, WordPress | Response: 0

看到 Jerry Tao 在其博客上发表了一篇如何配置IIS7+FastCGI的文章，特转载过来学习。

Win­dows Server 2008 (SP2) + IIS 7
添加 Web 服务器角色，需要安装 CGI 扩展支持。

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在OpenSolaris下动态绑定域名

Date: 2010.01.08 | Category: In My Opinion, Open Source | Response: 0

在我前面的博客中，谈到了如何通过使用OpenSolaris和ZFS来实现家庭NAS（Network Atta­ched Sto­rage）网络数据中心的实现方法。对于我们很多人来说，仅仅在家中内部的局域网使用还是不够的，还希望家中的NAS能够发挥更大的作用，无论走到哪里，只要有网络，我们便能读取和存储数据到家中的NAS中。那样，我们最为重要数据就不必随身携带了。加上NAS系统的冗余性，我们就不必担心数据会丢失了。

今天想先来谈一谈实现这个想法其中比较关键的一步：绑定动态域名。在中国，我们的家用网络多半属于ADSL或小区宽带上网。这种上网的方式使得IP地址不是固定的，而是动态的。所以在家庭网络外部，我们是无法通过IP来识别并进入家用网络的。如果固定IP地址，花费的费用不菲，另外还要经历痛苦的备案过程。

其实现在已经有很好的解决方案了，比如花生壳Oray。前一阵子我也在使用oray来绑定自己的动态域名。特别是Oray和TP-LINK合作，在tp-link中已经内置了花生壳的程序，我们需要做的只是注册一个用户就好了。但花生壳不是很稳定，几次出现了断线无法连接的问题，而且一断就是好长时间（大于3小时）。这个让我无法忍受，所以我找到了另外的解决方法：使用ddclient和dyndns.com提供的动态域名解析服务。 Read the rest of this entry »

Goodbye 2009, Hello 2010

Date: 2009.12.31 | Category: In My Opinion | Response: 0

This is the end of year 2009, and it is rea­lly an ama­zing one in my life.

At the begin­ning of the year, I said goo­dbye to Sun, and all my life in Sun was so memo­ra­ble that I can­not for­get about it. Then I took a 7-day-travel around Hong­Kong with my friends, and enjo­yed the best time in the winter.

After coming back, I sta­r­ted my new inter­n­ship at Mic­ro­soft. During those three mon­ths, I lea­rnt a lot about MS’s culture, work envi­ron­ment, and the latest deve­lop and test tech­ni­que around .NET 3.5 fra­me­work. I also lea­r­ned Open­XML docu­ment for­mat, and it is rea­lly cool. But unfo­r­tu­na­tely, I am not a lucky dog to be a regu­lar MSer. My mana­ger told me they had no hc and all the interns may not get a posi­tion in the group. So I had to say goo­dbye to MS, and fini­shed my inter­n­ship in my campus stage.

Then I plan­ned to go to Tibet for a won­der­ful travel with my best friend. With our great effort on the cir­cuit, culture, lodging, docu­ment colle­cting and so on around Tibet, we rea­lly did a per­fect pre­pa­ra­tion. Mean­while, we did a lot of pra­ctice to enhance our body ski­lls, and to ensure we can adapt the worst con­di­tion in the world about pla­teau problems.

We took the most sig­ni­fi­cant time in this year in Tibet in July, and rea­lly got sho­cked from Tibet’s sight-seeing and its culture about Tibe­tan Buddhism. We saw the most beau­ti­ful sky and cloud in Tibet that we had ever seen before, and went far from the pollu­ted cities. We felt so hea­lthy, so happy in those 7 days, and both of us were so enjo­ying ourselves.

After coming back from Tibet, I sta­r­ted to pre­pare my final the­sis and the pro­ject for my the­sis. I did a lot inve­sti­ga­tion around den­tal cli­nics, made seve­ral discu­ssions with doctors, nur­ses and their lea­ders. Then I sta­r­ted to design the archi­te­cture, then imple­men­ted it. I am happy it runs well on their cli­nics and it is use­ful and bene­fi­cial for their workflow.

Then I sta­r­ted to write down my pro­cess of software deve­lo­pment as the con­tent of my final the­sis. And thanks for my tutor to give me gui­des on how to write a good postg­ra­dua­tion the­sis. With mon­ths’ exer­tion, I succe­ssfu­lly fini­shed my the­sis and got my master’s deg­ree, and will gra­duate from PKU in the coming month.

Then I sta­r­ted my job hun­ting career, which is the tou­g­hest phrase in my life. There are so many paper tests, interviews or discu­ssions through these mon­ths, with striving, sad­ness, ten­sion, happi­ness and hope. It is for­tu­nate that I got 3 offers at the end of the year, and 2 of them I feel sati­sfied. In 2010, I will become an emplo­yee of a great company, and I am loo­king for­ward to putting my wit and my energy to con­t­ri­bute to my company! I see a bri­g­hter future in front of myself, and I will keep on going to reach the summit of my life.

Hello 2010!

This Is It

Date: 2009.11.16 | Category: Entertainment, In My Opinion | Response: 1

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A Morse Code Exchanger

Date: 2009.11.08 | Category: Software | Response: 0