Chef Node

In Serengeti, there are two most important and most critical functions: one is virtual machine management and the other is cluster software installation and configuration management. The virtual machine management is to create and manage the required virtual machines for a Hadoop cluster in vCenter. Cluster software installation and configuration management is to install Hadoop related components (including Zookeeper, Hadoop, Hive, Pig, etc.) on the installed virtual machine of the operating system, and update the configuration files like Namenode / Jobtracker / Zookeeper node ...

Reprint please indicate the place, pay attention to me please click: Http://weibo.com/heidixie the "Business flow chart drawing process sharing (a)", this article will be the middle of the fourth part of the previous section-how to draw business flow chart to expand more discussion. Originally finished, I found that there is not much need to simply discuss this part of the content, because for many people, lack of concrete practice, but to do the meaning of this matter and the goal of clarity. Once you have a strong understanding of the meaning and purpose of this matter, it will naturally produce a greater incentive to study how this level ...

The intermediary transaction SEO diagnoses Taobao guest stationmaster buys cloud host Technology Hall to guide: March 2005, Douban on-line. Now, the watercress is getting closer to its 10th year. 　　The community, once recognized as a typical UGC (user-produced content), was challenged by the industry in the run-up to the mobile venture: Has it gone too slowly, and is there a problem with its business model? Perhaps to 10 birthday, suddenly there will be some media out, seize the time node to do a variety of interpretation and interviews. We didn't mean to wait for that ...

"Editor's note" Shopify is a provider of online shop solutions company, the number of shops currently serving more than 100,000 (Tesla is also its users). The main frame of the website is Ruby on rails,1700 kernel and 6TB RAM, which can respond to 8,000 user requests per second. In order to expand and manage the business more easily, Shopify began to use Docker and CoreOS technology, Shopify software engineer Graeme Johnson will write a series of articles to share their experience, this article is the department ...

With IBM SmartCloud orchestrator, customers can perform end-to-end service deployments at the infrastructure and platform levels, and can customize workflows for process automation and IT management, resource monitoring, cost management, and more. Built on IBM's general-purpose cloud platform Common Cloud Stack (CCS), SmartCloud orchestrator leverages the core technologies of CCS to achieve comprehensive and efficient cloud system management. Due to space limitations, this article describes the work ...

Editor's note: The development and operation as a whole to look at the DevOps engineering thought gradually in the hearts of the community, this article explores the origins and development of DevOps, from the physical machine/stand-alone virtual machine deployment, to the deployment based on IaaS, and then last year, just the emergence of container based deployment. The writer, Jason, comes from a newly established Hangzhou Flying Cloud Information Technology Co., Ltd., its brand "Fit2cloud" (@fit2cloud) is a hybrid cloud management and DevOps tool built on IaaS for cloud infrastructure and applications ...

When an enterprise is transformed into a data-driven machine, its potential is enormous: the data owned by the enterprise may be the key to gaining a competitive advantage. As a result, the security of the enterprise's data and infrastructure has become more important than ever. In many cases, companies or organizations may get what Forrester says is "toxic data". For example, a wireless company is collecting data about who is logged on to which antenna tower, how long they stay online, how much data they use, whether they are moving or stationary, and that data is available to understand the user's behavior. There is no ...

A few months ago, I traveled long distances to the forest Park in the IBM Research Lab in New York State, York, to get a glimpse of the future of artificial intelligence that was in the offing. This is the research and development of the supercomputer "Watson", and Watson was at the "Brink" in 2011 (jeopardy!) The show was the top of the game. The original Watson computer is still here-it is a computer system that is about the size of a bedroom, surrounded by 10 upright freezer-type machines. Technicians can pass the system ...

Earlier, there have been rumors that a number of cloud bases in the fierce competition between the price of customers-a cloud base in Jiangsu, a cloud computing node rental price is 7 yuan/day, adjacent to Anhui is 6 yuan/day, and Inner Mongolia even low to 3.8 yuan/day.   This competition has initially shown the consequences of low-level duplication. Cloud computing in China is carried out in full swing, all over the country in gets, all the base is unwilling to be outdone, want to in the cloud computing this fertile soil in a firm footing. This makes people feel somewhat worried, there are so many cloud computing base in the whole country, whether there will be more ...

In the past, assembly code written by developers was lightweight and fast. If you are lucky, they can hire someone to help you finish typing the code if you have a good budget. If you're in a bad mood, you can only do complex input work on your own. Now, developers work with team members on different continents, who use languages ​​in different character sets, and worse, some team members may use different versions of the compiler. Some code is new, some libraries are created from many years ago, the source code has been ...