Partition Without Losing Data

A few days ago in QQ Group, a friend asked about how to lossless disk partition in Linux to adjust the size of the problem, in the actual use of this problem I have explored, so I am more concerned about how lossless adjustment of the disk partition size, without losing data! Http://www.aliyun.com/zixun/aggregation/32995.html "> In Windows, I used the Bootstar software, through the software record the hard disk partition ID, you can achieve the points ...

1.1: Increase the secondary data file from SQL SERVER 2005, the database does not default to generate NDF data files, generally have a main data file (MDF) is enough, but some large databases, because of information, and query frequently, so in order to improve the speed of query, You can store some of the records in a table or some of the tables in a different data file. Because the CPU and memory speed is much larger than the hard disk read and write speed, so you can put different data files on different physical hard drive, so that the execution of the query, ...

1. HQueue profile HQueue is a set of distributed, persistent message queues developed by hbase based on the search web crawl offline Systems team. It uses htable to store message data, HBase coprocessor to store the original keyvalue data in the message data format, and encapsulates the HBase client API for message access based on the HQueue client API. HQueue can be effectively used in the need to store time series data, as MAPR ...

This paper is an excerpt from the book "The Authoritative Guide to Hadoop", published by Tsinghua University Press, which is the author of Tom White, the School of Data Science and engineering, East China Normal University. This book begins with the origins of Hadoop, and integrates theory and practice to introduce Hadoop as an ideal tool for high-performance processing of massive datasets. The book consists of 16 chapters, 3 appendices, covering topics including: Haddoop;mapreduce;hadoop Distributed file system; Hadoop I/O, MapReduce application Open ...

After more than eight years of practice, from Taobao's collection business to today to support all of Alipay's core business, and in the annual "Double Eleven Singles Day" continue to create a world record for the transaction database peak processing capacity.

Why use a VLAN? The implementation of VLAN is a logical division of users, so that users in different VLANs can not communicate directly. This technology facilitates implementation and saves money. However, with the application of VLAN more and more wide, and VLAN-related security management problems are more and more serious. The application of VLAN technology provides a strategy method based on management mode for network security, we can choose different VLAN partition methods according to the characteristics of enterprise network management. Although the network security to a certain extent has been guaranteed, but ...

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