Puppet Installation

Implementation of batch deployment of software based on puppet tools Li Yunhu Zhengwei Liu Junbong to solve the problem of large-scale software deployment in cloud Platform service, the automation, continuity, logging and change flexibility of mass software deployment are realized, when the installed software can meet the silent installation, When two conditions are run under UNIX or Linux-like systems, the software can be deployed in bulk by applying puppet system Management tools. Describes the principles of the above deployment and the use of the common hard disk to copy the way to get the puppet tool support for the bulk deployment of more than ...

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 ...

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 ...

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 ...

have been in touch with Hadoop for two years, during which there are many problems, both classic Namenode and jobtracker memory overflow failures, HDFs storage small file problems, both task scheduling problems and MapReduce performance problems. Some of these problems are the pitfalls of Hadoop itself (short boards), and others are improperly used. In the process of solving problems, sometimes need to turn over the source code, sometimes to colleagues, netizens consult, encounter complex problems will be through the mail list to the world of Hadoop users, ...

have been in touch with Hadoop for two years, during which there are many problems, both classic Namenode and jobtracker memory overflow failures, HDFs storage small file problems, both task scheduling problems and MapReduce performance problems. Some of these problems are the pitfalls of Hadoop itself (short boards), and others are improperly used. In the process of solving problems, sometimes need to turn over the source code, sometimes to colleagues, netizens consult, encounter complex problems will be through the mail list to users around the world Hadoop ...

Understanding Cloud Security "cloud security" plan is the latest embodiment of information security in the network age, it integrates the new technologies and concepts such as parallel processing, grid computing, unknown virus behavior judgment, and obtains the Internet Trojan, 　　 　　The latest information of the malicious program, pushed to the server side for automated analysis and processing, and then the virus and Trojan solution distributed to each client. Future anti-virus software will not be able to effectively handle the increasing number of malicious programs. ...

"Core Tip" there is news that in the next two years, China intends to send 10 more Beidou navigation satellite. China's independent development of the Beidou second series of satellites this year began to enter the network peak, is expected to form a global satellite navigation and positioning system in 2015. Analysts point out that the Beidou satellite launch marks a further step towards the establishment of a "local GPs" (Global satellite Positioning System) in China.　　The development of "Beidou" is regarded as the signal of China's military combat capability, and will hopefully get rid of the embarrassment of satellite navigation system eminence by US GPs. Wenchuan disaster relief emerged last year's new China ...

Companies are clearly able to choose a business case for verifying cloud application migrations. However, it is clear that the technical problems associated with cloud migration can ruin business cases, disrupt applications and even generate other aspects of application performance and stability. Application architects who consider implementing cloud migration need to review their entire application lifecycle management (ALM) processes. In addition, however, they should pay special attention to managing performance and reliability, ensuring compliance and security, and the emphasis on ensuring operational efficiency and stability in cloud computing. Typically, deployment, redeployment, and management is done primarily through human operations ...

In the process of migrating to cloud computing, the most necessary concern is how best to manage. 　　Using any cloud computing model will create a lot of problems. How much of your management process for a particular virtual server is related to cloud computing? Manage a hybrid cloud with multiple public clouds and a private cloud that exists. Companies are more concerned about their data security, especially when data is placed on public cloud storage services, or unexpected bandwidth, The cost of storage capacity and poorly managed mirroring proliferation. Developing effective strategies can help mitigate these mixed cloud management problems ...