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The following content is from: http://blog.csdn.net/gqtcgq/article/details/49620279 Stevedore is an open source module for implementing dynamic load code. It is a public module that is used to load plug-ins in OpenStack. Can be installed independently of OpenStack: https://pypi.Python.org/pypi/stevedore/ Stevedore uses Setuptools's entry points to define and load Plug-ins. Entry point refers to objects d
hooked on, and the internal switch fabric quickly transmits the packet to the destination port. If the destination Mac does not exist, broadcast to all ports, and the receive Port responds, the switch will "learn" the new MAC address and add it to the internal MAC address table.What is a routerFor the different networks connected to each other, the router system constitutes the main thread of the Internet based on TCP/IP, and it can be said that routers form the skeleton of the Internet. Its pr
L1: Physical LayerL2: Data link layer, MAC address based communication, connect via switch;A peer transport, that is, a host on the switch sends a packet that is connected in the interchangeAll machines on the machine can be received;L3: Network layer, based on IP address, router device, connecting different network segments, routingSelectSwitch/Router differences:1, the work level is different, the switch is in L2, the router is in the L3;2, data forwarding according to the different objects:Th
in the reading OpenStack each component source code process, discovers all modules like Nova,neutron and so on, all through the WSGI way provides the restful API externally. and in the process of using WSGI, it involves paste,routes,webob the use of these Python third party libraries. So if you want to understand OpenStack's code to provide restful APIs, you have to learn Python WSGI first and understand the role paste,routes,webob these libraries pl
are several important features of cloud computing.Different "clouds" correspond to different infrastructures. Here are three broad "clouds": Infrastructure as service (IaaS) Platform as service (PaaS) Software as a service (SaaS) Translator Note: Open for the meaning of opening, stack is piling up, OpenStack together as its name, is a lot of open softwares accumulation of the collection, but 1 + 1 > 2, the system's function is more powerful. Sec
Reference: http://blog.csdn.net/pfm685757/article/details/48651389 Entry point is a dictionary that maps from the entry point group name to a list of strings or strings representing entry point. Entry points is used to support dynamic discovery
If you want to learn more about OpenStack, my advice is to first make sure you have the knowledge of this tutorial, because this is the foundation. The meaning of mastery is that theory can relate to practice. Can deploy, will operate, can see the log, will troubleshoot problems. After that. I believe that when you do this, you already have the ability to self-study other modules or to learn a core servic
Highly Available Concept Level Chen Ben How to Achieve Classification The ha of OpenStack virtual machine ha compare application level ha,heat ha template component ha mysql ha Three ways-master-slave synchronization, Main and Standby mode three ways of two
dynamics and best practices have cloud Blog | Unitedstack with Clouds See what the core says: an Ideal OpenStack Developer Here's the gossip: Think twice about buying Chinese books related to cloud computing. Look less at the topics on Weibo and OpenStack. A reliable team is hard to find and cautious to dig into. Look at the new book to be published in June "OpenStac
content. After having some knowledge of Linux, Python, and IaaS, you can follow the UnitedStack blog to learn about the dynamics and best practices of this industry. cloud blog | UnitedStack has cloud See what Core says: An Ideal OpenStack Developer The following is Gossip: Think twice about purchasing Chinese books related to cloud computing. Let's look at the topics related to OpenStack on Weibo. Relia
Transfer, performance status transmission. Presented by Dr. Fielding (the first president of the Apache Foundation, one of the main designers of the 1.0 and 1.1 versions of the HTTP protocol, the Apache server Software author). REST is manipulating the state of resources by manipulating the performance of the resources .Another type of WEB service interface protocol is SOAP.The difference between the two is that the invocation of the RESTful Web API
Tell you a real OpenStack: Who's using it, what's it for?The open-source cloud computing software OpenStack is entering the mainstream enterprise market, but the project is still facing an old problem that is difficult to deploy and manage, according to a two-year survey published by the OpenStack Foundation recently.T
Turn from: http://www.ibm.com/developerworks/cn/cloud/library/cl-contributecode-openstack/ Contribute your code to the OpenStack Sheng Bo Hou, software engineer, IBM Introduction: As OpenStack (open source cloud software) is supported, more and more individuals and businesses want to contribute to the OpenStack commu
first, the basic knowledge of OpenStackOpenStack is a free software and open source project that was developed and initiated by NASA and Rackspace to Apache2.0 licenses (compatible with GPLv3 and DFSG).OpenStack is an open source cloud computing management Platform project, composed of several major components to accomplish specific tasks. OpenStack supports almost all types of cloud environments, and the p
Openstack official website content: http://docs.openstack.org/grizzly/openstack-object-storage/admin/content/ Because I only focus on the part of openstack Object Storage, I did not write anything related to other modules (or I am relatively lazy). I may add it if necessary in the future. The translation level is limited. If a netizen finds an error during re
Hardware requirements Installing OpenStack 1 Installing the CentOS 65 system and emptying the Iptables firewall rules 2 The required toolkit for installing the system includes OpenStack-dependent and cloudfoundry-dependent 3 Installing Epel Repo 4 Upgrade Current system 5 Installing OpenStack Repo currently cloudfoundry can
The full text includes three parts: The first part Part II Part III IntroductionOpenStack is the ideal foundation for building enterprise-class private clouds. It aspires to become the core of the next generation of cloud operating systems. However, it is not a complete cloud operating system at this time. Before it could become a cloud operating system, it would be better to think of it as the core of a cloud operating system.To
OpenStack is an excellent cloud operating system, and it is wise for developers, administrators, and operators to have the skills associated with them in their virtual toolkit. Efficient cloud requires an efficient database and can accept multiple databases. But what if you want IBM? DB2 for OpenStack, what should I do? OpenStack does not support DB2 by default.
10. OpenStack Object Storage Service (SWIFT) configuration: I added two hard drives (SDB,SDC) to the compute node for storage, and the compute node in my build is the storage node, because the computer can't pull more virtual ... Brief introduction: There are four main components of Swift: Swift-proxy-server, Swift-account-server, Swift-container-server, Swift-object-server Swift-proxy-server (Proxy service): Externally provided object service API
Well, we've already installed fuel master, and now we're ready to install OpenStack, so you can see the OpenStack main interface when the installation is complete.Continue yesterday, we went into the fuel UI and then "new OpenStack Environment" to create the OpenStack deployment environment.650) this.width=650; "src="
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