pacemaker documentation

Lab environment: Install: Yum install corosync pacemaker-y Copy the configuration file CP corosync. conf. Example corosync. conf Vim corosync. conf Edit the configuration file: Compatibility: whitetankCompatible with corosync 0.8Totem {Defines the heartbeat information transfer layer between clustersVersion: 2 ---- versionSecauth: On --- whether to enable Security AuthenticationThreads: 0 --- How many threads are enabled to process heartbeat inf

This article is from DBAnotes. Original article title: DRBD and Pacemaker If someone asks you if a PC server can reach 99.99% high availability, what should you do? Maybe no machine can "Make sure" to achieve this availability. Of course, there may be no problems in a certain period of time, but it must be luck, however, high availability is basically impossible to achieve the goal through one machine. More often, we design solutions to ensure that t

Corosync and pacemaker implementation of the high availability of the difficulties in the CRM command, subcommand, more parameters, and so on, the following some common examples.One, CRM has two kinds of working methods 1, batch mode, which is to enter commands directly on the shell command line2, interactive mode (CRM (live) #) enters into Crmsh for interactive execution Second, the order detailed 1, First ORDER subcommand The code is

One: Experimental environment Node OS Ip Drbd_ip DRBD with HDD Vip Web1 centos5.10 192.168.10.11 172.16.1.1 /dev/sdb 192.168.10.100 Web2 centos5.10 192.168.10.12 172.16.1.2 /dev/sdb 1. Where the two-node IP address is set as above: 2. Two nodes have been configured with mutual SSH trust and have done time synchronization Two: Install related software (both nodes 1 and 2 are installed) 1. Insta

Tags: corosync pacemakerFirst, the environment introduction:Three are dual network cards:Openstack-control.example.com Openstack-controleth0:172.16.171.100eth1:10.1.1.100Openstack-nova.example.com Openstack-novaeth0:172.16.171.110eth1:10.1.1.110Openstack-neutron.example.com Openstack-neutroneth0:172.16.171.120eth1:10.1.1.120Second, Corosync and pacemaker configuration steps are as follows:1. Configure time zones and sync times2. Configure the cluster

1, two cenots7.0 server, I was built with a KVM virtual machine.2, parse the hosts file with each other3, turn off iptables and selinux,ssh open4, configure Yum source, install PACEMAKER,COROSYNC,DRBD5, configure DRBD, select Procoto C, copy mode, verify results6, configuration Corosync, CRM-based management VIP,FSSYSTEM,DRBD block device7, verify the result, can fail automatic switch.1,drbdaa eth0 9.111.222.59 eth1 192.168.100.59DRBDBB eth0 9.111.222

First, the preparatory workTo undertake the above: Corosync+pacemaker using CRMSH to build a highly available clusterII. MariaDB Server Configuration (NFS-based)NFS Server Preparation1. Prepare the LVM storage space in Nfsserver [[emailprotected]~]#fdisk/dev/sdbdevicecontains Neitheravaliddospartitiontable,norsun,sgiorosf disklabelBuildinganewDOSdisklabelwithdiskidentifier 0x61284c6a. changeswillremaininmemoryonly,untilyoudecideto Writethem. Afterthat

Tags: host server IP addressLab Environment:Two MARIADB servers 172.16.10.20 172.16.10.21fip:172.16.10.28MARIADB file storage share: 172.16.10.22Experiment Preparation:1, two node host name and corresponding IP address resolution service can work, and the host name of each node needs to be consistent with the results of the "uname-n" commandVim/etc/hosts 172.16.10.20 21.xuphoto.com 20xu 172.16.10.21 22.xuphoto.com 21xu Node1: # sed-i ' [email protected]\ (hostname=\). *@\[email protected] ' # HO

One: Experimental environment node os ip san_ip VIP node1 rhel 6.5 192.168.10.11 172.16.1.1 192.168.10.100 node2 Rhel 6.5 192.168.10.12 172.16.1.2 san rhel 6.5 172.16.1.3 /table> Note:The concept of 1.corosync and pacemaker is not said here, there is a lot of information on the In

HTTP high availability + Load balancer Corosync + pacemaker + pcsOpenStack Pike Deployment Directory Rollup http://www.cnblogs.com/elvi/p/7613861.html#http高可用 + Load Balancer pacemaker+haproxy#http+corosync+pacemaker+pcs+haproxy#ssh-free authentication, you must set http://www.cnblogs.com/elvi/p/7736521.html######################## #所有节点 # Installing Pacemake Cor

is the default data transmission model, can guarantee the integrity of the database. Installation Environment: centos6.5, installing the Corosync and pacemaker procedures, see the previous blog, the previous environment installed configuration interface is Crmsh, where the installation of PCs, the installation of PCs is relatively simple, #yum install pcs–y can After the installation is complete, the cluster status is as follows: 650) this.width=650

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.

Ansible + Corosync + Pacemaker + NFS for http High Availability Directory: (1) experiment environment(2) Preparations(3) Configure basic configurations for node1 and node2(4) deploying nfs using ansible(5) deploying corosync and pacemaker using ansible(6) Use ansible to install the crmsh Tool(7) Use crmsh to configure http High Availability(8) Verification(9) Notes (1) experiment environment1.1 environment

The search algorithm for the Niang, as well as the bidding rankings, I just want to say that I bought a watch last year. One, MySQL replication master configuration Please refer to: MySQL replication master (master-slave) Sync http://www.111cn.net/database/mysql/83904.htm Second, Corosync pacemaker installation configuration Please refer to: Corosync pacemaker Nginx High-availability installation configurat

First, install the heartbeat.Ha premise: 1, time synchronization; 2, SSH dual-machine mutual trust; 3, host name to be consistent with uname-n, and through/etc/hosts resolution; rpm-ivhepel-release-6-8.noarch.rpm #配置epel的源: yum-yinstallheartbeatcp/usr/share/doc/heartbeat-3.0.4/{ Authkeys,ha.cf,haresources}/etc/ha.d/Three configuration files: 1, key file, 600,/etc/ha.d/authkeys2, heartbeat configuration configuration of the service/etc/ HA.D/HA.CF3, resource management configuration file/etc/ha.

node2 192.168.3.20.node2Modify/etc/ha. d/ha. cf to add the node to the file, and modify the specific configuration node as needed:Keepalive 2Deadtime 20Inittime 120Udpport 694Bcast eth0 (your broadcast Nic, usually eth0)Auto_failback onNode node1Node node2Modify/etc/ha. d/authkeys to modify the encryption mode:Auth 11 crcModify the/etc/ha. d/authkeys attribute to 600.Modify/etc/ha. d/haresources to add an ip address for automatic drift processing: Node1 Ipaddr: 192.168.3.169/24/eth0 mysql httpd

This article briefly describes how to configure a Fence_vmware_soap type of stonith device (test-only learning) in Rhel 7 pacemaker.Stonith is the abbreviation for Shoot-the-other-node-in-the-head, and it protects the data from corruption due to node anomalies or simultaneous access.A node unresponsive does not mean that it does not have access to data, and if it wants to be sure that the data is secure, it needs to use Stonith to isolate the node to ensure that the data is properly accessed by

1. Preparation before installation High-availability clusters generally need to configure time synchronization, based on host name Mutual communication, SSH mutual trust communication, Corosync Pacemaker only need to configure time synchronization, based on host name to communicate with each other: yuminstallchrony #安装chronyvim /etc/chrony.confserver172.16.0.1iburst #设置为可用的ntp服务器systemctl restartchronyd #启动服务vim /etc/ hosts #将hosts文件分发给每个节点 172.16

managing master-slave DRBD hosts. The main use of drbdadm, because it more in line with the user's habits. Drbdsetup and Drbdmeta are less used as they are closer to the underlying device.DRBD's working features: real-time, transparent, set data synchronization typeThere are three types of data synchronization:A: Asynchronous, good performance, poor reliabilityB: Semi-synchronous performance reliability TradeoffC: Good synchronization reliability, poor performanceResource type for DRBD:Resource

Lab Environment:Virtual Machine 2 installs Corosync+pacemaker, the operating system used is CentOS6.5.Virtual Machine ip:172.16.103.2, 172.16.103.3Experimental steps:Prerequisite Preparation: Two virtual machine time synchronization, can use/etc/hosts file based on host name to communicate.First, install Corosync + pacemaker:# yum Install corosync# yum install pacemakerSecond, install the DRBD package:The D