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Linux下安装项目管理工具Redmine - 开源 & Github - 清泛网 - 专注C/C++及内核技术
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# gem install rake //直接使用gem命令安装rake.
//也可以下载安装地址：http://rubyforge.org/frs/download.php/56872/rake-0.8.7.tgz
4、Ruby on Rails
# gem install rails
安装成功提示：
Successfully installed activesupport-2.3.3
Successfull...
使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...下。性能详细对比请参见《TokuMX vs. MongoDB 性能对比》。
下载地址：http://www.tokutek.com/tokumx-for-mongodb/
TokuMX目前只有Linux版本，下载完成后
解压(tar -zxvf xxxx.tar.gz)
进入bin目录，新建配置文件如：tokumx.conf （文件名随意）
内容...
Scala type programming resources
...onstructs can be found in the types section of the scala reference manual (pdf).
Adriaan Moors has several academic papers about type constructors and related topics with examples from scala:
Generics of a higher kind (pdf)
Type Constructor Polymorphism for Scala: Theory and Practice (pdf) (PhD t...
Django get the static files URL in view
I'm using reportlab pdfgen to create a PDF. In the PDF there is an image created by drawImage . For this I either need the URL to an image or the path to an image in the view. I managed to build the URL but how would I get the local path to the image?
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Retrieving the COM class factory for component with CLSID {XXXX} failed due to the following error:
I developed a Windows service using C#.NET to generate PDF report. To generate PDF file I am using a third party dll. The application is running in my Windows XP platform. When I deployed the service in Windows Server 2008 64 bit version, I got this error:
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Custom ImageView with drop shadow
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This is taken from Romain Guy's presentation at Devoxx, pdf found here.
Paint mShadow = new Paint();
// radius=10, y-offset=2, color=black
mShadow.setShadowLayer(10.0f, 0.0f, 2.0f, 0xFF000000);
// in onDraw(Canvas)
canvas.drawBitmap(bitmap, 0.0f, 0.0f, mShadow);
Hope this h...
淘宝网采用什么技术架构来实现网站高负载的 - 更多技术 - 清泛网 - 专注C/C...
...通过遇到的问题来引出我们拆分RDBMS的 重要性。
系 统刚开始的时候，因为系统刚上线，用户不多，那个时候，所有的数据都放在了同一个数据库中，这个时候因为用户少压力小，一个数据库完全可以应付的了，但是随着运营那...
Is there a Java API that can create rich Word documents? [closed]
...ly generate MS-Word compatible documents (*.doc), as well as corresponding PDF documents, from a Java Web application (a Struts/JSP framework).
OpenOffice UNO also lets you build MS-Office-compatible charts, spreadsheets, presentations, etc. We were able to dynamically build sophisticated Word d...
Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...叫傳回WSAEWOULDBLOCK錯誤碼。此時要求連接動作尚未完成，第二次的connect()呼叫就會得到 WSAEINPROGRESS的錯誤。
我們的建議是在有可能發生這種錯誤的函式呼叫前加上WSAIsBlocking()判斷是否有阻攔式函式正在執行。如果有的話，我們...
从网购到火车票，对比淘宝12306网为何如此烂？ - 大数据 & AI - 清泛网 - ...
...术人员以实际行动让网民折服，虽然在淘宝双十一活动刚开始的10分钟内的访问高峰期内，购物车和支付宝都出现了打不开的情况，但订单可以生成，而且白天的系统运行比较正常。双十一期间，淘宝除了技术上的保障，还有大...