Corosync安裝測試一、實驗要求1、corosync+pacemaker集群安裝測試二、架構拓撲網絡要求：所有服務器位于同一VLan機器無特殊要求。三、系統環境1、操作系統：CentOS6.62、相關軟件：corosync、pacemaker、pcs3、網絡要求：/etc/hosts文件添加雙方主機名列表。四、地址規劃名稱角色IP地址虛擬IP地址CentOS-66A主服務器15CentOS-66B從服務器25五、安裝軟件1、安裝支持軟件#在編譯安裝之前，必須安裝內核開發包，以及支持庫[shell]#yum-yinstallgccgcc-c++kernel-developensslopenssl-devel[shell]#yum-yinstallautomakeautoconfpkgconfignssnss-devel[shell]#yum-yinstalllibqblibqb-devellibtoollibtool-ltdl-devel[shell]#yum-yinstallglib2glib2-devellibuuidlibuuid-devel[shell]#yum-yinstalllibxml2libxml2-devellibxsltlibxslt-devel[shell]#yum-yinstallbzip2bzip2-develdbusdbus-devel[shell]#yum-yinstallpampam-devellibesmtplibesmtp-devel[shell]#yum-yinstallfence-agentsresource-agentsdocbook-style-xsl[shell]#yum-yinstallcluster-gluecluster-glue-libscluster-glue-libs-devel[shell]#yum-yinstallgnutlsgnutls-develpythonpython-develpython-lxml2.1、創建所需的用戶和組#在編譯安裝之前，創建軟件所需的用戶(hacluster)和組(haclient)[shell]#groupadd-g201haclient[shell]#useradd-ghaclient-u201-s/sbin/nologin-Mhacluster[shell]#passwdhacluster##設置群集管理用戶的密碼2.2、編譯安裝corosync、pacemaker、pcs軟件，使用默認路徑安裝。##編譯安裝corosync（作為通信層并提供關系管理服務）[shell]#tar-xvzfcorosync-2.3.4.tar.gz-C/usr/local/src[shell]#cd/usr/local/src/corosync-2.3.4[shell]#./configure##--prefix=/usr/local/corosync[shell]#make&&makeinstall##編譯安裝pacemaker（實現資源管理）[shell]#tar-xvzfpacemaker-master.tar.gz-C/usr/local/src[shell]#cd/usr/local/src/pacemaker-master[shell]#exportPKG_CONFIG_PATH=/usr/lib64/pkgconfig##指定corosync相關庫[shell]#./autogen.sh##用于生成configure文件[shell]#./configure[shell]#make&&makeinstall##使用yum安裝pcs&pcsd（Pacemaker/Corosync配置工具）[shell]#yum-yinstallpcs#注：可以編譯安裝resource-agents以獲取更多ocf格式資源包，也可以使用crmshCLI工具來配置管理群集。#推薦使用yum安裝corosync+pacemaker[shell]#yum-yinstallcorosyncpacemakerpcs2.3、拷貝配置文件、啟動腳本[shell]#mkdir-p/etc/cluster/[shell]#ln-s/etc/rc.d/init.d/corosync/etc/rc.d/init.d/cman[shell]#ln-s/usr/sbin/corosync-cmapctl/usr/sbin/corosync-objctl[shell]#cp/etc/corosync/corosync.conf.example/etc/corosync/corosync.conf2.4啟動軟件[shell]#ldconfig–v##刷新系統運行庫緩存[shell]#servicepcsdstart[shell]#servicecorosyncstart[shell]#servicepacemakerstart六、軟件配置1、主配置文件（/etc/corosync/corosync.conf）：[shell]#vi/etc/corosync/corosync.conf#Pleasereadthecorosync.conf.5manualpagetotem{version:2secauth:offthreads:0rrp_mode:active##使用多個心跳接口時，必須指定rrp_mode參數：none,active,orpassiveinterface{ringnumber:0bindnetaddr:mcastaddr:mcastport:5405ttl:1}##配置第二條心跳路徑的接口IPinterface{ringnumber:1bindnetaddr:mcastaddr:mcastport:5405ttl:1}}logging{fileline:offto_stderr:noto_logfile:yeslogfile:/var/log/cluster/corosync.logto_syslog:yesdebug:offtimestamp:onlogger_subsys{subsys:AMFdebug:off}}##只有二個群集節點時，corosync2.x配置文件中必須配置quorum內容：quorum{ #Enablethetwo_nodesdirectiveprovider:corosync_votequorumexpected_votes:2two_node:1}##加載CorosyncPacemakerplugin[shell]#vi/etc/corosync/service.d/pcmkservice{ #LoadthePacemakerClusterResourceManager name:pacemaker ver:1}##推薦：corosync節點使用加密通信，利用“/dev/random”隨機數函數生成密鑰[shell]#corosync-keygen[shell]#scp/etc/corosync/authkeyroot@2:/etc/corosync/2、配置群集主機間SSH信任連接[shell]#ssh-keygen-trsa[shell]#scp/root/.ssh/id_rsa.pubroot@2:/root[shell]#cat/root/id_rsa.pub>>/root/.ssh/authorized_keys3、配置群集ConfigureCorosync##配置群集節點的認證asthehaclusteruser:[shell]#pcsclusterauthnode11node12[shell]#pcsclustersetup--namemyclusternode11node12…………4、因沒有Fencing設備，禁用STONITH組件功能##TodisableSTONITH,setthestonith-enabledclusteroptiontofalse:[shell]#pcspropertysetstonith-enabled=false[shell]#crm_verify-L-V5、二個節點時，禁用quorum策略功能[shell]#pcspropertysetno-quorum-policy=ignore6、pcsd相關配置（/usr/lib/pcsd/）##啟用pcsd（pscwebgui）遠程管理，端口2224；[shell]#mv/usr/lib/pcsd/pcsd.rb/usr/lib/pcsd/pcsd.rb.bak[shell]#cp/usr/lib/pcsd/pcsd.rb.disable-gui/usr/lib/pcsd/pcsd.rb[shell]#servicepcsdrestart##啟動pcsd服務七、測試1、可以使用命令查看日志文件：[shell]#tail-f/var/log/messages[shell]#tail-n30/var/log/pacemaker.log[shell]#tail-n30/var/log/cluster/corosync.log2、可以使用corosync-cfgtool命令查看群集：[shell]#corosync-cfgtool-sPrintingringstatus.LocalnodeID2130706433RINGID0id=status=ring0activewithnofaults[shell]#corosync-cmapctl|grepmembers3、可以使用pacemakerd-F命令查看安裝組件：[shell]#pacemakerd-FPacemaker1.1.12(Build:d262b21)Supportingv3.0.9:libqb-logginglibqb-ipclha-fencingupstartnagioscorosync-nativeatomic-attrdacls附：錯誤處理A、軟件編譯時錯誤解決辦法：1、configure:error:Packagerequirements(nss)werenotmet解決方式：yum-yinstallnssnss-develconfigure:error:Packagerequirements(libqb)werenotmet:解決方式：yum-yinstalllibqblibqb-devel3、configure:error:Youdonothavethelibuuiddevelopmentpackageinstalled解決方式：yum-yinstalllibuuidlibuuid-develglib2glib2-devel4、checkingforcpg...configure:error:Packagerequirements(libcpg)werenotmet:Nopackage'libcpg'found解決方式：exportPKG_CONFIG_PATH=/usr/local/corosync/lib/pkgconfig2、軟件運行時錯誤處理1、[shell]#pcsclusterauthnode21node22Error:unabletoconnecttopcsdonnode21Er