openstack ha

Objective OpenStack is an open source IaaS (infrastructure and services) cloud computing platform that allows anyone to build and deliver cloud computing services on their own. OpenStack consists of a series of interrelated projects that provide various components of cloud infrastructure solutions, core projects (9): 1, calculation (Compute)-Nova; 2, Network and address management-neutron; 3, Object St

-- rebuild 3. You must note that OpenSSL and netsnmp are required to install these RPM packages. If they are not installed, dependencies error may occur during RPM installation. 4. configure/etc/ha. d/ha. cf. if this file does not exist, copy a sample and modify it: CP/usr/share/doc/package/heartbeat/ha. CF/etc/ha. d

The development of openstack is fierce, and many friends agree that in 2013, the openstack deployment problem will be well solved, making the installation and configuration easier to use. Many companies have invested effort in doing this. Sina also plans to make an ISO for openstack and integrate OS. When you decide to do this, first understand the current situat

I believe we all know how to configure the HA function in the vsphere environment, know ha failover time for VM system startup time + Application start time + 15 seconds of heartbeat detection time, know ha is not affected by DRS and Vmotion, Know ha do not need to rely on vcenter (vcenter Hung, license authorized ESXi

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.There is no doubt that

need to manually add the Host record. You can view the host name as follows: [[emailprotected]resource.d]#uname-nMySQL01.stephenzhou.net[[emailprotected]ha.d]#cat/etc/hosts127.0.0.1localhost.localdomainlocalhost.localdomainlocalhost4localhost4.localdomain4localhostMySQL01::1localhost.localdomainlocalhost.localdomainlocalhost6localhost6.localdomain6localhostMySQL01192.168.2.23MySQL01.stpehenzhou.net192.168.2.24MySQL02.stpehenzhou.net192.168.3.23MySQL01.stpehenzhou.net192.168.3.24MySQL02.stpehenz

the resize-confirm command migrates VM00 to compute1 and shutdown compute0, it cannot be synchronized with VM00 and VM01 on the controller. Line communication. The reason is as follows: Before migrating a virtual machine, the internal network composition of the two compute instances is as follows: There is a namespace of the router and dhcp server on compute0. If you migrate the VM00 to VM01, shutdown compute0. From the point of view, there is no router namespace, Therefore, the routes to VM00

Based on the article "Installation and basic configuration of Hadoop2.0" (see http://www.linuxidc.com/Linux/2014-05/101173.htm), this paper continues to introduce hadoop2.0 QJM (Quorum Journal Manager) mode of HA configuration (hadoop2.0 architecture, specific version is hadoop2.2.0). This article only describes the main preparation of HA manual switch, automatically switch to the next article continue to i

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

VSphere ha runs in an ESXI host cluster environment. You must create the cluster, then have the host populate the cluster, and configure the vsphere ha settings to establish failover protection. Vsphere HA can be enabled for the cluster. A cluster with vsphere ha enabled is a prerequisite for fault tolerance. You can c

migrate and nova After the resize-confirm command migrates VM00 to compute1 and shutdown compute0, it cannot be synchronized with VM00 and VM01 on the controller. Line communication. The reason is as follows: Before migrating a virtual machine, the internal network composition of the two compute instances is as follows: There is a namespace of the router and dhcp server on compute0. If you migrate the VM00 to VM01, shutdown compute0. From the point of view, there is no router namespace, There

multiple backends at the same time. That is, users are authenticated by LDAP and service users are authenticated by local SQL dB. Other interesting security projects: Barbican and Kite. Let's see for yourself. Http://redhatstackblog.redhat.com/2014/08/05/juno-updates-security/ Tripleo Ha is supported. In addition, HA is the default action, even if there is only one node. Some use hea

We have been experimenting with the RedHat5 and 6 Versions of HA since January May of this year. I found the HA manual of version 6 on the Internet and found that although the project uses the dual-node mode most, if the dual-node mode is only for HA, A three-node or more arbitration disk is required. In addition, the HA