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Low-overhead enhancement of reliability of journaled file system using solid state storage and de-duplication
A mechanism is provided in a data processing system for reliable asynchronous solid-state device based de-duplication. Responsive to receiving a write...
分类:其他好文   时间:2014-11-05 19:34:27    阅读次数:304
HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException
HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerExceptiontype Exception reportmessage Request processing failed; nested exception is java.lang.NullPointerExceptio...
分类:编程语言   时间:2014-11-04 19:42:27    阅读次数:284
HTTP Status 500 - Request processing failed; nested exception is org.springframework.jdbc.BadSqlGram
HTTP Status 500 - Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException:type Exception reportmessage Request processing failed; nested exception is org.springf...
分类:数据库   时间:2014-11-04 19:41:30    阅读次数:357
Spring Batch_官网DEMO实现
Spring Batch_官网DEMO实现 http://spring.io/guides/gs/batch-processing/ 使用spring xml方式实现了spring batch官网的demo,现在把具体的代码贴出来,具体的细节配置还要参考官网的说明。 首先建立maven项目,...
分类:编程语言   时间:2014-11-03 21:06:30    阅读次数:354
Spring Batch学习_ItemReaders and ItemWriters
Spring Batch学习_ItemReaders and ItemWriters All batch processing can be described in its most simple form as reading in large amounts of data, performing some type of calculation or transformation...
分类:编程语言   时间:2014-11-03 14:47:54    阅读次数:407
解决Windows server 2012 R2 系统使用IIS8浏览Asp程序出现"An error occurred on the server when processing the URL"错误
进入IIS并将ASP里的“Send Error To Browser”设置为True后点击Appley保存即可原因是IIS里的Asp设置禁用上当错误信息发送给浏览器,只要启用即可如果没有Asp选项则需要在IIS里安装ASP(IIS8)参考:IIS7中出现Anerroroccurredontheser...
分类:Windows程序   时间:2014-11-02 22:25:01    阅读次数:216
Samza/Kafka机理解析
Apache Samza is a distributed stream processing framework. It uses Apache Kafka for messaging, and Apache Hadoop YARN to provide fault tolerance, processor isolation, security, and resource manage...
分类:其他好文   时间:2014-11-02 16:36:31    阅读次数:255
hdu - 3049 - Data Processing(乘法逆元)
题意:N(N 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3049 ——>>RJ白书上说“由于‘乘法逆’太重要了……”,上一年南京区赛同学也碰到了求逆元……现在,学习了。。       什么是乘法逆?ab % m = 1 (这里的 a, b 分别都是模 m 的同余等价类),a 模 m 的乘法逆是 b,同时,b 模 m 的乘法逆是a。...
分类:其他好文   时间:2014-11-02 16:33:16    阅读次数:203
NHibernate大批量插入数据库的处理方法 NHibernate Batch processing
使用NHibernate插入接近100000条记录到数据库,像下面一个例子:ISession session = sessionFactory.OpenSession();ITransaction tx = session.BeginTransaction();for ( int i=0; i<10...
分类:数据库   时间:2014-10-30 18:47:08    阅读次数:171
Oracle OLAP 与 OLTP 介绍
数据处理大致可以分成两大类: 联机事务处理OLTP (on-line?transaction?processing)、 联机分析处理OLAP (On-Line?Analytical?Processing)。 OLTP是传统的关系型数据库的主要应用 ,主要是基本的、日...
分类:数据库   时间:2014-10-29 13:14:31    阅读次数:266
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