pacemaker installation

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 #

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

Flex gcc4. Unzip the source code, compile and add it as a service:Tar zxf drbd-8.4.3.tar.gzCD drbd-8.4.3./configure--with-kmMake kdir=/usr/src/kernels/2.6.32-358.el6.x86_64Make installMkdir-p/USR/LOCAL/VAR/RUN/DRBD # must add this directorycp/usr/local/etc/rc.d/init.d/drbd/etc/rc.d/init.d/#与rpm安装不同的是, the corresponding configuration file path after the source installation is/usr/local/etc/...Chkconfig--add DRBDChkconfig DRBD onCD DRBDMake cleanMake k

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

installation Crmsh3) Ra,resource AgentA resource agent is the ability to receive a schedule of CRM, a tool for implementing management of a resource on a node, usually a script(1) Heartbeat legacyTraditional type of heartbeat, listening on UDP port 694(2) Lsb,linux Standard baseThose scripts in/etc/rc.d/init.d/* belong to the LSB.(3) Ocf,open Cluster FrameworkOpen cluster architecture, the organization that provides the resource proxy script is calle

The following commands are implemented using crm and pcs. 1. Install corosync and pacemaker with the rpm package in CentOS6.5.Yum-y install corosync pacemaker2. Configure pacemaker to run as the corosync plug-in:Add the following configuration in/etc/corosync. conf:Secauth: on # enable security authentication for communications between cluster nodesInterface {Bindnetaddr: 192.168.0.0 # specify the network a

=" Screenshot-2.png "alt=" Wkiom1psogxhrkbbaag4wkdkpk4168.jpg "/>Internal component structureSecond, the Software Installation and Web service implementationLab Environment: rhel6.5KVM Virtual Authority closed firewall SELinux disabledTwo nodes node1.com node4.comYum Install Corosync pacemaker-yThe Yum Warehouse does not provide a CRM command to install itselfPackage Name:crmsh-1.2.6-0.rc2.2.1.x86_64.rpm,ps

:/etc/2, install the following RPM package:Cluster-glue,cluster-glue-libsCorosync,corosynclibHeartbeat,heartbeat-libsLibesmtpPacemaker,pacemaker-cts,pacemaker-libsResource-agents# yum Install Cluster-glue# yum Install--nogpgcheck *.rpm (copy heartbeat-3.0.4-2.el6.i686.rpm and heartbeat-libs-3.0.4-2.el6.i686.rpm to the home directory)# yum Install Corosync# yum-y Install LIBESMTP# Yum Install

Tags: corosync NFS pacemaker MySQLCOROSYNC/OPENAIS+PACEMAKER+NFS offers mariadb high availabilityNode I, one, 172.16.249.122/16, 172.16.0.1, CentOS6.6, mariadbNode two, 172.16.249.123/16, 172.16.0.1, CentOS6.6, mariadbNode III, three, 172.16.249.124/16, 172.16.0.1, CentOS6.6, NFSvip:172.16.249.121Node I: one 172.16.249.122Setup #设定ipHostname One.centossed-i [email protected]=.*@[email protected]/etc/sysconf

Os:rhel 6.5 64bitcorosync:1.4.7--yum Mode installationpacemaker:1.1.2--Automatic installation as a Corosync dependency packPacemaker is the product of heartbeat development to 3.0 independent, Red Hat 6.0 series, using Yum to install Corosync, the default is to install Pacemaker as CRM.Pacemaker Common Configuration tool: Crmsh PCsCrmsh need to install RPM packages independentlyMain configuration files:/etc

0. IntroductionAs a member management layer (membership layer) in Ha scheme, Corosync is responsible for the functions of cluster member management, communication mode (unicast, broadcast, multicast), pacemaker as the CRM layer. In the practice of using Corosync +pacemaker, the problemof brain fissure is encountered. What is brain fissure: in HA cluster, the network communication between nodes through the h

#以node01为例修改主机名#node02需要同样的配置[Email protected] ~]# cat/etc/hosts127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4:: 1 localhost localhost.localdomain localhost6 localhost6.localdomain610.10.10.5 node0110.10.10.6 NODE02#关闭防火墙以及SElinux#node02需要同样配置[Email protected] ~]# Systemctl stop Firewalld[Email protected] ~]# systemctl disable FIREWALLDRemoved Symlink/etc/systemd/system/dbus-org.fedoraproject.firewalld1.service.Removed Symlink/etc/systemd/system/basic.target.wants/f

Pacemaker, is a cluster resource manager. It enables node and resource level failure detection and recovery of the maximum Availability Cluster service (also known as resource management) using the messaging and membership capabilities provided by your preferred cluster infrastructure (Openais or Heaerbeat).It can do clusters of any size and comes with a robust dependency model that enables administrators to accurately express the relationships betwee

Corosync and pacemaker implement httpd and mysql dual ClustersI. Environment Introduction: Three are dual NIC: openstack-control.example.com openstack-control eth0: 172.16.171.100 eth1: 10.1.1.100 openstack-nova.example.com openstack-nova eth0: 172.16.171.110 eth1: Drawing openstack-neutron eth0: 172.16.171.120 eth1: 10.1.1.120 II. The configuration steps of corosync and pacemaker are as follows: 1. Configu

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

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

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

After MySQL migrated to Azure, due to the nature of the cloud, the method of ha in the self-built data center of MySQL could not be deployed much on the cloud.This is mainly because the public cloud currently does not support: 1. shared storage; 2. Multicast;3. Vip. Shared storage, the Azure file service can partially resolve this issue, but given the performance issues, this scenario does not use File service; The main reason for multicast is that the cluster software needs multica