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 ...
In our daily life, we are inseparable from the application of position recognition class. Apps like Foursquare and Facebook help us share our current location (or the sights we're visiting) with our family and friends. Apps like Google Local help us find out what services or businesses we need around our current location. So, if we need to find a café that's closest to us, we can get a quick suggestion via Google Local and start right away. This not only greatly facilitates the daily life, ...
43 Free cloud computing services, the cloud computing integrated development environment, source code management, problem tracking, cloud database, CMS, payment gateway, code hosting, load testing, monitoring, help and web analytics, 11 areas of free cloud computing technology summarized. Since March, the Xeround team has been brainstorming to present a free cloud computing technology "feast" for application developers-listing 43 cloud computing services that make it easier for programmers to develop applications and, more importantly, free! All they do is release your IT resources ...
VMware suddenly released its first open source Paas--cloudfoundry this April. In the months since its release, the author has been concerned about its evolution and benefited from its architectural design, and felt the need to write to share it with you. This article will be divided into two parts: the first part mainly introduces the architecture design of Cloudfoundry, from the module that it contains, to the information flow of each part, how the modules coordinate and cooperate; The second part will be based on the first part, how to use Clou in your data center ...
"Editor's note" predicts the future is a very crazy thing, and now the development of enterprise technology is always beyond our imagination. Eric Knorr, InfoWorld's editor-in-chief, predicts that 9 of the big technologies will be in place in 2015 or in the coming years. He believes that open source is the first choice for enterprises to obtain competitive advantage, as a developer should pay attention to technical hotspots, and around the core technology to build a similar docker, Hadoop and other ecosystems. The following is: 1. The public cloud will be successful this year, IaaS and PAAs of the melt ...
Htsql is a URI based http://www.aliyun.com/zixun/aggregation/22.html "> relational database Advanced Query language that encapsulates database access using the WEB service layer and converts HTTP requests to SQL Command and returns the query result, formatted as HTML or JSON. Htsql 2.1.0-rc1 Update log: Added/:TSV formatter t ...
The establishment of enterprise security building Open source SIEM platform, SIEM (security information and event management), as the name suggests is for security information and event management system for most businesses is not cheap security system, this article combined with the author's experience describes how to use open source software Analyze data offline and use algorithms to mine unknown attacks. Recalling the system architecture to WEB server log, for example, through logstash WEB server to collect query log, near reality ...
Basex is a lightweight, high-performance, extensible XML Database system and Xpath/xquery processor. It supports the update and expansion of the full-text, interactive and user-friendly GUI front-end that gives you great insight into large XML data instances. Used to store condensed XML data, provides efficient XPath and XQuery implementations, and includes a front-end operating interface. Basex 7.1.1 is listed in the New Package dialog box in this version of the GUI and has been installed to remove the XQuery package. "New ...
Ultimix is a framework for web development applications, similar to CMS, portals, ERPs, etc. It supports multiple languages, and its function is to support http://www.aliyun.com/zixun/aggregation/18083.html "> Rights Management, MVC Small framework, encapsulation architecture, template engine, JavaScript library, Simple GUI libraries, caching systems, and CAPTCHA. Ultimix 1.5.190 This version update log ...
Sysstat is a system http://www.aliyun.com/zixun/aggregation/12240.html "> Data collection and Monitoring system performance software package that includes: Sar,sadf,iostat, Nfsiostat,cifsiostat,mpstat,linux's Pidstat command. Statistical data reports include: I/O transfer rate, page activity, program related activities, interrupts, network activities, memory and ...
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