First, we will attach the openstack document to illustrate why permission errors are reported when % is granted! Mysql-uroot-pyunjisuanCREATEDATABASEkeystone; GRANTALLPRIVILEGESONkeystone * TO first attaches the openstack document. This example shows why the Permission error is reported when % is authorized!
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Label:This series analyzes OpenStack's high availability (HA) concepts and solutions: (1) Overview of OpenStack high-availability scenarios (2) Neutron L3 Agent HA-VRRP (Virtual Routing Redundancy Protocol) (3) Neutron L3 Agent ha-dvr (Distributed virtual machine router) (4) RabbitMQ HA (5) MySQL HA1. MySQL HA Scenario SummaryThere are many kinds of
Difference between mysql-authorized localhost % and persistent authorization error solution (install openstack), mysqllocalhostFirst, we will attach the openstack document to illustrate why permission errors are reported when % is granted!Mysql-u root-pyunjisuanCreate database keystone;
Grant all privileges on keyston
The first is to attach the OpenStack document, as an example to explain why the right to the% but has been reported permission error! mysql-u Root-pyunjisuanCREATE DATABASE Keystone;GRANT all privileges the keystone.* to ' keystone ' @ ' localhost ' identified by 'Keystone_dbpass';GRANT all privileges the keystone.* to ' Keystone ' @ '% ' identified by 'Keystone_dbpass';correct understanding, here the use o
MySQL can be replaced with MARIADBEarlier in the 51cto blog saw a teacher wrote a seven version of the deployment plan, written very good, has been collected.Yum Install Ntp-yVi/etc/ntp.conf#server 0.centos.pool.ntp.org Iburst#server 1.centos.pool.ntp.org Iburst#server 2.centos.pool.ntp.org Iburst#server 3.centos.pool.ntp.org IburstRestrict 192.168.100.0 mask 255.255.255.0 nomodifyServer 127.127.1.0Fudge 127.127.1.0 Stratum 10Service NTPD RestartChkco
Devstack installation and use openstack FAQ and solution statement:
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It is a pleasure to study, study, and summarize the content!
When installing the run create-stack-user.sh script, the current directory is not devstack
If the pbr version is incorrect during installationRun pip install -- upgrade pbr, pip install -- upgrad
Tags: mysql nova nova list OpenStack[email protected] ~]# Nova ListError:an unexpected error prevented the server from fulfilling your request. (Operationalerror) (1040, ' Too many connections ') None None (HTTP 500)Workaround:Key_buffer = 64MMax_allowed_packet = 16MThread_stack = 192KThread_cache_size = 8Myisam-recover = BACKUPQuery_cache_limit = 1M query_cache_size = 64MLog_error =/var/log/mysqld.logExpir
This tutorial is based on the Ubuntu12.04 edition, and it will help readers build a openstack minimized installation. I am the top of the Wuyue, translation more use of transliteration method, so the individual words and the original discrepancy, please understand. I am not a major in English, I think the most important thing is to understand the technology, and not the four level and grind in the boring English-Chinese translation, so my goal is loya
How to Achieve
The ha of OpenStack
virtual machine ha
application level ha,heat ha template
Three ways-master-slave synchronization, Main and Standby mode
wants to know how to deploy a distributed, high-availability OpenStack, refer to the related articles on the network.So, I chose the CentOS and Redhat tools Packstack to deploy a single-node OpenStack. Currently Cloudfoundry only supports Folsom,grizilly, and Havana three versions of OpenStack.0. Hardware requirements cpu:x86_64 Architecture of the Intel I5 i7 o
more information, see openstack powervm configuration.
Configure the compute node and start the service
Generally, openstack has one or more control nodes, also known as Cloud Controller nodes. For simple deployment scenarios, public components such as keystone, glance, database, and message queue in openstack are deployed on a control node.
Generally, the minim
of the established project can communicate with each other. Executed by assigning each project its own VLAN and an internal and external IP address pool.Once the hardware and network are set up, the next step is to determine where all the OpenStack components are deployed. Standard deployments should have a controller and a series of compute nodes. The controller runs the message server, the database, and other components to orchestrate the cloud whi
= = Keystone Service = =OpenStack-keystone: inactiveAs shown above: If you start httpd, you will not be able to start the Openstack-keystone service very well, as you can see in the official documentation: the 35357 . By default, the Keystone service still listens on ports35357. Therefore, this guide disables the Keystone Service.This means that the httpd and
affect other sub-services, which means that the change is transparent to others.
In the following sections, we can see the application of Messaging.DatabaseOpenStack components need to maintain their own state information. For example, Nova has a virtual machine in the specification, state, and this information is maintained in the database. Each OpenStack component has its own database in MySQL.650)
1. language advice: learn python well.
according to their own situation.) ）3-3. SQL-based communicationCommunication through a database connection, most of which is also within the project, and does not require the database and other components of the project to be installed on the same node, it can also be installed separately, you can also deploy a database server specifically, the database services on the above, through the SQL-based connections to communicate. OpenStack does not speci
node also runs services that support OpenStack, such as SQL database (typically MySQL), Message Queuing (usually RabbitMQ), and network Time service NTP.
The network node on which the service is running is Neutron. Provides L2 and L3 networks for OpenStack. This includes virtual machine networking, DHCP, routing, NAT, and so on.
The storage node (Storage nod
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