Puppet File

The chief technical officer of Schindler Yuncheng (Speedycloud) Dong at the meeting with a speech entitled "Automation extension of NoSQL cluster on the Yunping platform". Demonstrates how to create and initialize a NoSQL cluster on a cloud host, and how to detect a host failure through a monitoring system, and automatically invoke the cloud API for faulty device replacement, and finally show how to destroy a host from the command line. But because the time is hasty, did not give the small partner to leave too many time to carry on the question solution and the difficulty detailed introduction, therefore dong in ...

Auth0 is a "status as a service" start-up company, but also a heavy cloud service users. For them, service outages mean that a lot of user-managed applications cannot log in, so availability is critical to them. Recently, Auth0 Engineering director Jose Romaniello shared a cloudy architecture that they could exempt across providers from a wide range of Microsoft Azure downtime. Auth0 is a "status as a service" start-up company that allows users to ignore the underlying infrastructure for mobile ...

Preface Having been in contact with Hadoop for two years, I encountered a lot of problems during that time, including both classic NameNode and JobTracker memory overflow problems, as well as HDFS small file storage issues, both task scheduling and MapReduce performance issues. Some problems are Hadoop's own shortcomings (short board), while others are not used properly. In the process of solving the problem, sometimes need to turn the source code, and sometimes to colleagues, friends, encounter ...

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 ...

Introduction Cloud application developers and DevOps have successfully developed tens of thousands of applications for IaaS (Amazon AWS, Rackspace, etc.) and PAAs (Azure, Google App Engine, Cloud Foundry, etc.) platforms. These platforms provide basic security mechanisms such as authentication, Dos attack defense, firewall policy Management, logging, basic user and account management, but security concerns remain the primary obstacle to enterprise cloud implementations. Security concerns for the cloud, deploying from a secure configuration ...

1. Appium Official website: Http://appium.io/Appium is an open source automation testing framework, which is mainly used for native mobile applications or hybrid mobile applications. 　　Appium uses Webdriver:json wire Kyoto to drive iOS apps and Android apps. Note: Webdriver is a selenium based automated test class library that is not running in the browser Javas ...

Aliyun, Sheng, Sina Cloud, Huawei Cloud, Baidu Cloud, with the development of the domestic cloud service industry, the continuous improvement of the industrial chain to the technical requirements are higher and high. In particular, the user's demand for cloud services is increasingly stringent. As for what technologies are the key to cloud computing, what are the common cloud development frameworks and tools? Let's count dozens of of them first. @ Tan Lin _hootch on his microblog, Cloudcamp founder Dave Nielsen faces the industry's development, analyzing the cloud services industry's 10 most needed job skills. Yesterday...

"Editor's note" If you think the advantage of open source software is free and doctrine, then you are wrong, in today's software market, open source projects more and more dazzling, the choice of open source software is the biggest advantage is low risk, product transparency, industry adaptability and so on, but in the open source project area really influential enterprises, It is absolutely the enterprise that contributes the most code to this project. Network name for the architect of the blogger Li Qiang summed up the worthy attention of the 10 open source projects, are very valuable, the following is the original: 1. Appium official website: http://appiu ...

In recent years, with the continuous development of cloud computing, attracting more and more staff to invest in it, then, what is the most needed cloud computing platform is the job skills? Let's take a look at the following. Cloud computing platform The most needed 10 kinds of job skills Aliyun, Sheng, Sina Cloud, Huawei Cloud, Baidu Cloud, with the development of the domestic cloud service industry, constantly improve the technology requirements of the industrial chain more and more high. In particular, the user's demand for cloud services is increasingly stringent. As for what technologies are the key to cloud computing, what are the common cloud development frameworks and tools? Let's count dozens of first.

Core tip: "The father of Pleasant goat" Louyongqian in recent time too busy too busy, the company staff for several weeks can not see him, so people to let pleasant goat red through China's real life is full of curiosity.　　"In fact, I was like a wolf, every day by his wife urged to go out to write money"! Louyongqian witty words to the broad masses of attention to his people revealed his life! A forever in the clamor to eat sheep but never eat the wolf, a group of wisdom to overcome the threat, luck is also perfect sheep--China's local animation "Pleasant Goat and gray wolf" applauded and popular, in children and young white-collar quickly became popular. ...