The entire life cycle of instance from creation to deletion is managed by Nova. In the following sections, we take the different operational scenarios in the instance life cycle as an example to analyze in detail how the different Nova components work together and deepen your understanding of Nova through log analysis.Before we study Nova's operations, let's start by learning one important thing: the OpenStack logs.OpenStack's log records very detaile
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.Today, Op
. However, XFS is considered to be the best choice at the moment.Swift Container ServerThe container server will list all objects in a container, and the default object list will be stored as SQLite files (translator Note: You can also modify MySQL as an example of MySQL in the installation). The container server also counts the number of objects contained in the container and the storage space consumed by
API front-end servicesEach OpenStack component may contain several sub-services, which must have an API service that is responsible for receiving customer requests.In Nova, for example, Nova-api as a unique window to the Nova component, exposing the capabilities that Nova can provide to customers. When customers need to perform VM-related operations, they can and only send REST requests to NOVA-API. Customers here include end users, command lines, and
subnet, that connection is called a port. You can assign the IP address of the external network to the port of the instance. In this way, an entity on the external network can access the instance.Network services also support security groups. Security groups allow administrators to define firewall rules in a security group. An instance can belong to one or more security groups, and the network configures the rules in these security groups for that instance to block or open ports, port ranges, o
API Front-end servicesEach OpenStack component may contain several sub-services, which must have an API service that is responsible for receiving customer requests.In Nova, for example, Nova-api as a unique window to the Nova component, exposing the capabilities that Nova can provide to customers.When customers need to perform VM-related operations, they can and only send REST requests to NOVA-API.Customers here include end users, command lines, and o
Reply content:
1, language advice: Learn python.
OpenStack is a pure Python project, so you have to be familiar with the syntax, debugging, and invocation of Python. Like what:
PDB: Base use, breakpoint, call stack
LOG: Call stack printing, function import parameter printing, bottom command printing
Python open source frameworks, components: such as SQLAlchemy, Django
Object-oriented: Clear abstraction, inheritance, polymorphism, comp
number.) )After that, Dashboard's page found that it was deleted.Restart Nova-compute, create the virtual machine again, and the status is active.Problem thinking Direction: The operation of virtual machine (create, delete, etc.) must be related to Nova-compute.----------------------------------------------------------------------------------------------------March 25, 2014 update after following the above actions, and found that although the instance has been deleted, such as: If you want to m
Installing openstack through an external network may require a large amount of events to be downloaded from the RPM package, and may be unable to access the external network environment at some customer sites, for convenient and quick installation, you can build a yum source by yourself. This article makes a complete summary from the creation of the yum source, to the installation of a single openstack node
During the installation process, a source problem was encountered and the Web page for the package could not be found: reopen the preloaded source address, open the Epel-openstack-havana.repo file, and display the following:# Place this file in Your/etc/yum.repos.d/directory[openstack-havana]name=openstack Havana Repository for EPEL 6baseurl= http://repos.fedorap
Compiling OPENSTACK-JAVA-SDK using MAVEN in a Windows environmentCompiling source FilesDownload Source codeGit clonehttps://github.com/woorea/openstack-java-sdk.gitDownload and install Gpg4win http://ftp.gpg4win.org/The download for this process is Gpg4win-2.2.2.exeConfiguring GPGViewF:\GITHUB\OPENSTACK-JAVA-SDK>GPG--list-keygpg:c:/users/eric.sunah/appdata/roamin
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
OpenStack network summary: basic concepts of the network in openstack
Openstack-install-guide-yum-icehouse.pdf/7. Add a networking service/Networking concepts
OpenStack's Neutron can manage Virtual Network Infrastructure (VNI) and physical network infrastructure (PNI) in the OpenStack environment ). OpenStack's Neutron
Openstack-dashboard Development Environment Building and openstack Building
1. during the development process, it is generally necessary to run the dashboard component separately in your local linux system (Ubuntu or centos), which is preferred. If you are not used to it, you can use vmwareworkstation to install a virtual machine and switch over at any time.
2. install some required packages for the dashbo
Compiling OPENSTACK-JAVA-SDK using MAVEN in a Windows environmentCompiling source FilesDownload Source codeGit clonehttps://github.com/woorea/openstack-java-sdk.gitDownload and install Gpg4win http://ftp.gpg4win.org/The download for this process is Gpg4win-2.2.2.exeConfiguring GPGViewF:\GITHUB\OPENSTACK-JAVA-SDK>GPG--list-keygpg:c:/users/eric.sunah/appdata/roamin
This series of articles focuses on learning and researching OpenStack Swift, including environment building, principles, architecture, monitoring, and performance.(1) OpenStack + Three-node Swift cluster + HAProxy + UCARP installation and configuration(2) Swift Principles and architecture(3) Swift monitoring(4) Swift performanceTo implement the system:Characteristics:
Deploy all Swift services on e
We are building a swift environment on our own these days. After reading some documents and combining my own practices, I wrote it down:
1. Physical Environment Description:
Linux: Ubuntu server 12.04 Proxy Server IP: 10.214.0.181storage server one: 10.214.0.179storage server two: 10.214.0.180storage server three: 10.214.0.182
2. important components:
Node: runs one or more object storage services.
Proxy node: Run proxy services
Auth node: Run auth Service
Storage: Run account, container, and
DirectoryOpenstack-mitaka Overview of High AvailabilityOpenstack-mitaka High-availability environment initializationOpenstack-mitaka High-availability Mariadb-galera cluster deploymentOpenstack-mitaka High Availability of memcacheOpenstack-mitaka High Availability pacemaker+corosync+pcs High availability clusterOpenstack-mitaka Highly Available certification services (Keystone)Openstack-mitaka High Availability Computing Service (Nova)
When opening the dashboard error: Locationparseerror at/admin/(Locationparseerror (...), ' Failed to parse:failed to parse:10.50.20.75:35357:v2.0 ')
Request Method:
GET
Request URL:
http://10.50.20.75/dashboard/admin/
Django Version:
1.4.8
Exception Type:
Locationparseerror
Exception Value:
(Locationparseerror (...), ' Failed to parse:failed to parse:10.50.20.75:35357:v2.0 ')
Exception Lo
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