Database Checkpoint

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VMware launches new enterprise database

Global virtualization and cloud Infrastructure leader VMware (NYSE trading Code: VMW) announced a new database opening and operation solution at VMworld 2011, which aims to bring an enterprise a service model of database and service. As an extension of the VMware Cloud application platform strategy, VMware vfabric Data director will provide it with the ability to control and manage an increasing number of heterogeneous databases through policy-based automation, and through self-service provisioning patterns for developers ...

Method of recovery after SQL Server database crashes

No database system can avoid a crash situation, even if you use a clustered, two-machine hot standby ... It is still not possible to completely eradicate the single point of failure in the system, and for most users, this expensive hardware investment cannot be sustained. So, when the system crashes, how to restore the original valuable data becomes an extremely important problem. In the recovery, the ideal situation is that your data files and log files are intact, so only need to sp_attach_db, the data file attached to the new database, or in the downtime ...

MSSQL Backup statements and recovery introduction

----------------------------------------------------------------------1, SQL database recovery model---------------------------- ------------------------------------------1) Full Recovery model-----------------(1) data to back up the database when backing up ...

How to hold the double 11 data flood peak of 180 million / sec? Ali flow computing technology

In the case of double 11 singles day traffic peaks this year, the real-time data update frequency is still stable: from the first second, the rushing party into the order payment, to complete the real-time calculation and delivery to the media full screen full path, seconds Level response.

Some attacks on SQL databases

For a lot of news at home and abroad, BBS and E-commerce sites are used asp+sql design, and write ASP programmers Many (there are a lot of just graduated), so, Asp+sql attack success rate is also relatively high. This kind of attack method has little to do with the NT version and the SQL version. There is no corresponding patch, because the loophole is caused by the programmer, and most of the book on ASP programming, the source code example has this flaw exists, in fact, just some legitimate ASP on the request of SQL, leaving endless trouble! A This attack method originated from ...

kafka different versions

kafka different versions. kafka-0.8.2 What's new? Producer no longer differentiates between sync and async, and all requests are sent asynchronously, improving client efficiency. The producer request will return a response object, including the offset or error message. This asynchronously bulk sends messages to the kafka broker node, which can reduce the overhead of server-side resources. The new producer and all server network communications are asynchronous, at ack = -...

HDFS Architecture

HDFs is the implementation of the Distributed file system of Hadoop. It is designed to store http://www.aliyun.com/zixun/aggregation/13584.html "> Mass data and provide data access to a large number of clients distributed across the network.   To successfully use HDFS, you must first understand how it is implemented and how it works. The design idea of HDFS architecture HDFs based on Google file system (Google files Sys ...).

Hadoop Series Six: Data Collection and Analysis System

Several articles in the series cover the deployment of Hadoop, distributed storage and computing systems, and Hadoop clusters, the Zookeeper cluster, and HBase distributed deployments. When the number of Hadoop clusters reaches 1000+, the cluster's own information will increase dramatically. Apache developed an open source data collection and analysis system, Chhuwa, to process Hadoop cluster data. Chukwa has several very attractive features: it has a clear architecture and is easy to deploy; it has a wide range of data types to be collected and is scalable; and ...

The "money" conjecture of airline large data

At present, in the domestic aviation market, the vast majority of services are free, airlines are gradually seeking services to charge the method. However, at this stage of the pay service is not "hit", only to find the most wanted services, is the demand. To face the data and use the data, the core of the large data commercialization is to develop different marketing and service strategies for different passenger groups. Large data can help airlines to achieve business model transformation. "Big Data" is not "big database" at present, the domestic airline data "warehouse", still is only a "big database", not "big data". Number ...

Game Writing Practice Guide: How to write a good game plot planning case

Video game writers are often misunderstood.  Even in the most ideal situation, we are often seen as planning a brick sand, in the middle of the gap to walk, the opportunity to play in the game where the fun to paste some beautiful, descriptive dialogue.  The authors are even further marginalized by the seemingly ambiguous feelings of our team members, as if we were trying to fill the game with popular dramas, the big cutting scenes of alloy gear, and the heavy burden of white spit in our 450-page script. I would like to bring you out of this concept, people seem to be the obvious misleading imprisoned, that writing only ...

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