Ruby User Agent

"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 ...

Nanite (developed by Ezra Zygmuntowicz) is a new recruit for the engine yard cloud computing strategy: It is a "self-assembled cluster of ruby programs" to build the back end of a highly scalable Web application (see Ezra's statement). The nanite contains two parts: Agents (Agents) and mappings (mappers). The agent implements the function of the application and is managed by the mapping, and the mapping is the control node of the system. The agent periodically reports its status to the map and (by default) the average load, because ...

If you want to create a private cloud, you need to use management software to create a virtual pool of computing resources, provide access to end users, and deal with security, resource allocation, tracking and billing issues. We tested five mainstream private cloud management products: Novell's Cloud Manager,eucalyptus Enterprise Edition, Opennebula,citrix Lab Manager and cloud.com cloudstack ...

One, the charm of the management of cloud computing is that users can start using their ID card and credit card, but that's the problem. Such a simple service is bound to bring many challenges to the unprepared IT department. 　　We've been through this many times before: the benefits of a technology that are easy to use end up being an unexpected management challenge, such as virtualization, which causes virtual machines to become fragmented, new security risks to smartphones, and instant messaging that triggers corporate governance problems. This article is intended to show IT managers how to maximize cloud computing ...

The end of 2013, we based on the past year's user access, exchange and sharing and the project itself update frequency and other aspects of the open source China's nearly 30,000 open source software statistics, so that the top 10 most popular open source software, for reference only. The list is mainly for domestic open source software, the list of 10 open source software is not the same type, although put together is not very scientific. 　　We only select from a few angles, including user access, software updates, and user discussion of the software. 1. Goagent ...

There is a concept of an abstract file system in Hadoop that has several different subclass implementations, one of which is the HDFS represented by the Distributedfilesystem class. In the 1.x version of Hadoop, HDFS has a namenode single point of failure, and it is designed for streaming data access to large files and is not suitable for random reads and writes to a large number of small files. This article explores the use of other storage systems, such as OpenStack Swift object storage, as ...

[Core Tip] in the internet age, self-vanity, a strong sense of self satisfaction may be beyond your imagination. 　　How big the vanity is, how big the market is. 　　Three years ago, the Geek Park has a use of human weaknesses of the Internet series of observation articles, in turn from the "greed", "Lust", "vanity", "peep", "lazy" and other angles to the gap between the various Internet products how to use the weakness of human nature to promote, forward. Three years later, Internet products have become a broad term, in addition to the narrow range of Internet products, it also includes mobile internet products, wearable equipment and nearly two years ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall [core hint] the internet age, ego vanity, ego fulfillment is strong may exceed your imagination. 　　How big the vanity is, how big the market is. 　　Three years ago, the Geek Park has a use of human weaknesses of the Internet series of observation articles, in turn from the "greed", "Lust", "vanity", "peep", "lazy" and other angles to the gap between the various Internet products how to use the weakness of human nature to promote, forward. Three years later, the interconnection ...

Justin.tv,youtube's threat, through 30 million independent visits per month, 30 hours a day to add video, and YouTube only 23, so in the game video upload area after losing YouTube, The following platform from the Justin.tv real-time video system, their architectural details, from what they should learn from a number of aspects for everyone to explain. First from the use of the platform began to say: twice--Agent service system, mainly in the application of buffer optimization ...

Intermediary transaction SEO diagnosis Taobao Guest Cloud mainframe technology Hall learning programming and computer industry is a different situation. 　　Do not write point program can be engaged in the computer industry, on the contrary, learning programming is not necessarily for professional computer industry, programming can be a good hobby or as a composite talent "second skill", of course, if there is an appropriate opportunity, you can also consider career change. It is normal for novice programmers to read books without understanding them. All programmers come from that step. In addition to reading you can also use the rich Internet resources, and the following ...