openstack ha

Tags: mysql master and slave semi-synchronous. Main master MySQL ha cluster: MYSQL-MHAIntroduction: Principle and mechanism of master-slave replicationto implement replication, you must first open The binary log(bin-log) function on the Master side , otherwise it cannot be implemented. Because the entire replication process is actually a variety of operations that are logged in the execution log that Slave obtains the log from the Master side and the

Host1 and Host3 are mainly from each other, that is, Host1 is the host3 of the host, but also for the host3 slavehost1 192.168.203.131host2 192.168.203.132host3 192.168.203.1331. Install keepalivedwww.keepalived.org 2. Notice to empty the firewall Iptalbles-f 3. Configure host1 and Host3 to master from and authorize the login grant all on * * to 'Replmonitor ' @ ' 192.168.203.% ' identified by ' 000000 ' with GRANT option; 4. Configure keealived.conf! ConfigurationFile forKeepalivedhost1 on: gl

Thank you for your friends to support this blog, welcome to discuss the exchange, due to limited capacity and time, mistakes are unavoidable, please correct me!If reproduced, please keep the source author blog information.Better Me Blog: Blog.csdn.net/tantexianIf you need to communicate, welcome to blog message.CentOS 6.5 builds local OpenStack software sourceMkdir-p/home/yum/openstack/

the IP first, since the service starts with a clear need for the IP address of the resource. There is a difference between these two types of highly available resources.The steps to define a highly available resource are as follows: first define the IP address used by MySQL.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/49/1B/wKiom1QPCFeDyGVEAAIIs6ptUT0433.jpg "title=" 2014-09-09 22_01_36-linux HA Management client.jpg "alt=" wkiom1qpcfed

Label: Disclaimer: The recent installation of the kilo version of OpenStack found that there were very few existing web tutorials and that most of the tutorials did not install successfully, So write this tutorial. The installation of OpenStack is complex, and this tutorial does not guarantee that it will be installed successfully in different environments. Personal installation tutorials are also prone

Definition of HeartbeatThe Heartbeat project is an integral part of the LINUX-HA project and the most successful example of the current open source HA project, Linux-ha is High-availability Linux, the goal of this open source project is to: through the joint efforts of Community developers, Provides a clustering solution that enhances Linux reliability (reliabili

Control nodeBefore you install and configure the Compute service, you must create a database, service credentials, and API endpoint.First, create a Nova database and authorize1. Logging into the databaseMysql-u root-p2. Create a database and authorizeCREATE DATABASE Nova; GRANT all privileges on Nova.* To'Nova'@'localhost'identified by'Nova_dbpass'; GRANT all privileges on Nova.* To'Nova'@'%'identified by'Nova_dbpass';Replace NOVA_DBPASS with a suitable password.Source the admin credentials to

on the Advanced blade server that connects the fibre storage network. Even Microsoft Exchange began recommending the evolution from RAID to JBOD, which instead relied on the application layer for fault tolerance.Let's take a closer look at the three requirements of enterprise-class OpenStack.Scalability and Performance (Scalability performance)Scalability is a feature of the system's ability to meet growing system size and load requirements. Performance is a dimension of the throughput of a si

RedHat plans to launch enterprise-level open source OpenStack software to host IaaS (Infrastructure as a service) deployment. The company has released an unsupported preview version, and the complete commercial version is expected to be released in early 2013. "From the RedHat perspective, we feel that the next version of OpenStack will be ready to provide enterprise-level services," said briansteven S, Red

Recently sorted out the previously deployed OpenStack HA documentation!PACEMAKER+COROSYNC+CRMSH InstallationI. Pre-conditionsNode1:(1) The host names are resolved between each nodeUname-n>node1.test.comVim/etc/hosts>127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4>::1 localhost localhost.localdomain localhost6 localhost6.localdomain6>192.168.18.201 node1.test.com Node1>192.168.18

The following steps are performed on the controller node1, remote access to/etc/swift/swift.conf files:Https://git.openstack.org/cgit/openstack/swift/plain/etc/swift.conf-sample?h=stable/newton2. Modify the/etc/swift/swift.conf configuration file:[Swift-hash]...swift_hash_path_suffix = Hash_path_suffixswift_hash_path_prefix = Hash_path_prefix[Storage-policy:0]name = Policy-0default = yesNote: storage-policy:0 This configuration item retains only the a

Shortly after I first came into contact with openstack, I encountered some problems when implementing 3-node deployment by referring to the official documentation, mainly focusing on the compute node. Fortunately, I had more than a decade of O M experience to help me solve the problem one by one. The solution is marked in red. System Environment: centos 6.5 64-bit IP addresses of each node: configured according to the IP addresses in the official do

OpenStack installation and configuration is a bit complicated, especially for beginners, the first time you install OpenStack often encounter a lot of problems. However, in the OpenStack community, some developers have developed a number of automated scripts to facilitate the construction of OpenStack development envir

High Availability of servers through HA, that is, high availability cluster of mysql servers through corosync + drbd + pacemaker. Main steps to implement the case application: 1. Preparations: 2. install and configure DRBD. 3. mysq High Availability of servers through HA, that is, high availability cluster of mysql servers through corosync + drbd + pacemaker. Main steps to implement the case application: 1.

Transfer from http://www.linuxidc.com/Linux/2012-04/58182p3.htmObjectiveEnsuring HDFs high availability is a problem that many technicians have been concerned about since Hadoop was popularized, and many programs can be found through search engines. Coinciding with the Federation of HDFS, this paper summarizes the meanings and differences of Namenode, Secondarynamenode, Backupnode, and the HDFs ha framework. In addition, the article concludes with an

This article mainly introduces the creation of HA cluster, mainly has the following requirements: 1, each host has redundant network connection and the same configuration of Virtual Switch, at least 2 physical network card, the previous article on the configuration of the distributed switch has been satisfied. 2. Each host has redundant shared storage and at least 2 iSCSI shared disks are added. 3, host network settings to turn on the Vmotion function

HA (high available) is highly available and is also known as a dual-machine hot standby for critical business. The simple understanding is that there are two machines A and B, the normal is a service, B standby idle, when a down or service outage, will switch to the B machine to continue to provide services. Commonly used high-availability open source software has heartbeat and keepalived, where keepalived has load-balanced functionality.Below we use

Ssh-copy-id-i hadoop5 Meaning:The meaning of executing ssh-copy-id-i hadoop5 on node HADOOP4 is to append the contents of the public key id_rsa.pub on HADOOP4 to HADOOP5 's authorization file Authorized_keys.One of the functions implemented by zookeeper in HADOOP2 is the automatic switching of ha.Journalnode is the implementation of data synchronization between active and standby two data nodes.Build a manually switched ha (more than HADOOP1 cluster b

The previous article introduced the Activemq HA scheme based on ZK, although it is easier to understand, but there are two deficiencies:1) A large number of nodes occupied, 1 ZK cluster at least 3 nodes, 1 ACTIVEMQ cluster also have at least 3 nodes, but in fact, only one master node in the normal operation of external response, in other words, the cost of 6 nodes only to ensure 1 activemq The high availability of the master node is a waste of resourc

Scene: The two-pack version of CentOS6.3, which installs the Hortonworks's Hadoop release and is highly available in accordance with its official documentation, but without fence device support, causes the standby HA node to not be notified of resource release when the network breaks and power off tests occur. Therefore, the author simply wrote a script, so that the HA's standby node in the primary node network and power outages can be learned throu