corosync+pacemaker的crmsh的經常使用指令介紹

• 配置crmsh的yum倉庫，此倉庫的RPM包有openSUSE提供，將這個network:ha-clustering:Stable.repo文件直接下載到本地而且命名爲crmsh.repo

wget -O /etc/yum.repos.d/crmsh.repo http://download.opensuse.org/repositories/network:/ha-clustering:/Stable/CentOS_CentOS-7/network:ha-clustering:Stable.repo
yum repolist
yum install -y crmsh

crmsh是pacemaker的命令行接口工具，執行help命令，能夠查看shell接口全部的一級命令和二級命令，使用cd 能夠切換到二級子命令的目錄中去，能夠執行二級子命令

在集羣中的資源有四類：primitive主資源、group組資源、clone克隆資源、ms/master主從資源

在集羣中的約束有三種：

①：location位置約束：資源間的依賴/互斥性，定義資源是否運行在同一節點上。score，正值表示要運行在同一節點上，負值則不可。 
②：colocation排列約束：每一個節點都有一個score值，正值則傾向於本節點，負值傾向於其餘節點，全部節點score比較，傾向於最大值的節點。 
③：order順序約束：定義資源執行動做的次序，例如vip應先配置，httpd服務後配置。特殊的score值，-inf 負無窮，inf 正無窮。

 

經常使用指令介紹：

crm(live) # help

Help overview for crmsh

 

 

Available topics:(可用主題)

 

Overview Help overview for crmsh
 
Topics Available topics
 
Description Program description
CommandLine Command line options
Introduction Introduction
Interface User interface
Completion Tab completion
Shorthand Shorthand syntax
Features Features
Shadows Shadow CIB usage
Checks Configuration semantic checks
Templates Configuration templates
Testing Resource testing
Security Access Control Lists (ACL)
Resourcesets Syntax: Resource sets
AttributeListReferences Syntax: Attribute list references
AttributeReferences Syntax: Attribute references
RuleExpressions Syntax: Rule expressions
Reference Command reference

 

 

 

Available commands:(可用命令)

 

      cd            切換命令層級，例如 cd cluster：切換到cluster二級命令
      help          查看幫助
      ls            列出命令層級和命令
      quit          退出
      report        報告
      status        查看集羣狀態，能夠有參數 help status 能夠查看
      up            回到上一個命令層級
      verify        驗證集羣狀態
      assist/       Configuration assistant 配置集羣代理
           template Create template for primitives
           weak-bond Create a weak bond between resources
 
      cib/          CIB shadow management
           cibstatus      CIB status management and editing (CIB狀態管理和編輯)
           commit         Copy a shadow CIB to the cluster  (將影子CIB複製到集羣)
           delete         Delete a shadow CIB   (刪除陰影CIB)
           diff           Diff between the shadow CIB and the live CIB (陰影CIB和活動CIB的區別)
           import         Import a CIB or PE input file to a shadow  (將CIB或PE輸入文件導入到陰影中)
           list           List all shadow CIBs    (列出全部陰影CIB)
           new            Create a new shadow CIB  (建立一個新的CIB)
           reset          Copy live cib to a shadow CIB  (將活動CIB複製到影子CIB)
           use            Change working CIB   (改變工做CIB)
 
      cibstatus/   CIB status management and editing
           load           Load the CIB status section
           node           Change node status
           op             Edit outcome of a resource operation
           origin         Display origin of the CIB status section
           quorum         Set the quorum
           run            Run policy engine
           save           Save the CIB status section
           show           Show CIB status section
           simulate       Simulate cluster transition
           ticket         Manage tickets
 
      cluster/    Cluster setup and management （重要）
           add            給集羣添加節點
           copy           拷貝文件到另一個集羣的節點
           diff           Diff file across cluster
           geo_init       Configure cluster as geo cluster
           geo_init_arbitrator Initialize node as geo cluster arbitrator
           geo_join       Join cluster to existing geo cluster
           health         集羣的健康狀態檢查
           init           初始化集羣
           join           加入到已經存在的集羣
           remove         從集羣中移除一個節點
           run            在全部集羣節點執行一條命令
           start          啓動集羣服務
           status         集羣狀態檢查
           stop           中止集羣服務
           wait_for_startup Wait for cluster to start
 
      configure/   CIB configuration cib 集羣配置（很重要，最重要的命令用中文註釋了）
           acl_target     Define target access rights
           alert          Event-driven alerts
           cib            CIB shadow management
           cibstatus      CIB status management and editing
           clone          定義克隆資源
           colocation     設置排列約束
           commit         Commit the changes to the CIB
           default-timeouts Set timeouts for operations to minimums from the meta-data
           delete         Delete CIB objects
           edit           編輯集羣配置文件，cib文件
           erase          Erase the CIB
           fencing_topology Node fencing order
           filter         Filter CIB objects
           get_property   Get property value
           graph          Generate a directed graph
           group          定義組資源
           load           Import the CIB from a file
           location       設置位置約束
           modgroup       Modify group
           monitor        Add monitor operation to a primitive
           ms             定義主從資源
           node           Define a cluster node
           op_defaults    Set resource operations defaults
           order          設置順序約束
           primitive      定義主資源
           property       設置集羣的屬性
           ptest          Show cluster actions if changes were committed
           refresh        Refresh from CIB
           rename         Rename a CIB object
           role           Define role access rights
           rsc_defaults   Set resource defaults
           rsc_template   Define a resource template
           rsc_ticket     Resources ticket dependency
           rsctest        Test resources as currently configured
           save           Save the CIB to a file
           schema         Set or display current CIB RNG schema
           set            Set an attribute value
           show           Display CIB objects
           tag            Define resource tags
           template       Edit and import a configuration from a template
           upgrade        Upgrade the CIB
           user           Define user access rights
           validate-all   Help for command validate-all
           validate_all   Call agent validate-all for resource
           verify         Verify the CIB with crm_verify
           xml            Raw xml
 
      corosync/ Corosync management Corosync的管理
           add-node       Add a corosync node
           del-node       Remove a corosync node
           diff           Diffs the corosync configuration
           edit           Edit the corosync configuration
           get            Get a corosync configuration value
           log            Show the corosync log file
           pull           Pulls the corosync configuration
           push           Push the corosync configuration
           reload         Reload the corosync configuration
           set            Set a corosync configuration value
           show           Display the corosync configuration
           status         Display the corosync status
 
      history/       Cluster history 設置集羣的歷史信息
           detail         Set the level of detail shown
           diff           Cluster states/transitions difference
           events         Show events in log
           exclude        Exclude log messages
           graph          Generate a directed graph from the PE file
           info           Cluster information summary
           latest         Show latest news from the cluster
           limit          Limit timeframe to be examined
           log            Log content
           node           Node events
           peinputs       List or get PE input files
           refresh        Refresh live report
           resource       Resource events
           session        Manage history sessions
           setnodes       Set the list of cluster nodes
           show           Show status or configuration of the PE input file
           source         Set source to be examined
           transition     Show transition
           transitions    List transitions
           wdiff          Cluster states/transitions difference
 
     maintenance/  Maintenance mode commands 維護模式的命令
          action         Invoke a resource action
          off            Disable maintenance mode
          on             Enable maintenance mode
 
     node/        Node management 節點管理（很重要）
         attribute      管理、查看節點屬性
         clearstate     Clear node state
         delete         刪除節點
         fence          Fence 一個節點
         maintenance    Put node into maintenance mode
         online         讓節點上線, 例如：node online node2
         ready          Put node into ready mode
         server         Show node hostname or server address
         show           查看集羣中的節點
         standby        讓一個節點standy，例如：node standby node1
         status         查看集羣中節點的狀態
         status-attr    管理集羣中節點的屬性
         utilization    Manage utilization attributes
 
     options/     User preferences
         add-quotes     Add quotes around parameters containing spaces
         check-frequency When to perform semantic check
         check-mode     How to treat semantic errors
         colorscheme    Set colors for output
         editor         Set preferred editor program
         manage-children How to handle children resource attributes
         output         Set output type
         pager          Set preferred pager program
         reset          Reset user preferences to factory defaults
         save           Save the user preferences to the rc file
         set            Set the value of a given option
         show           Show current user preference
         skill-level    Set skill level
         sort-elements  Sort CIB elements
         user           Set the cluster user
         wait           Synchronous operation
 
     ra/       資源代理管理操做（很重要）
         classes        列出資源類別和提供者，例如：ra classes
         info           查看腳本的使用方法，例如：ra info IPaddr2
         list           列出一個類別中有多少可用的資源代理，例如：ra list lsb 或 ra list ocf
         providers      查看特定資源代理有哪一個提供者提供，例如：ra providers IPaddr2
         validate       Validate parameters for RA
 
     resource/    Resource management 資源管理（重要）
         ban            Ban a resource from a node
         cleanup        Cleanup resource status
         clear          Clear any relocation constraint
         constraints    Show constraints affecting a resource
         demote         Demote a master-slave resource
         failcount      Manage failcounts
         locate        Show the location of resources
         maintenance   Enable/disable per-resource maintenance mode
         manage        Put a resource into managed mode
         meta          Manage a meta attribute
         move          將某個資源遷移到哪一個節點上去
         operations    Show active resource operations
         param         Manage a parameter of a resource
         promote       Promote a master-slave resource
         refresh       Refresh CIB from the LRM status
         reprobe       Probe for resources not started by the CRM
         restart       Restart resources
         scores        Display resource scores
         secret        Manage sensitive parameters
         start         Start resources
         status        Show status of resources
         stop          Stop resources
         trace         Start RA tracing
        unmanage       Put a resource into unmanaged mode
        untrace        Stop RA tracing
        utilization    Manage a utilization attribute
 
script/       Cluster script management
        json          JSON API for cluster scripts
        list          List available scripts
        run           Run the script
        show          Describe the script
        verify        Verify the script
 
site/         GEO clustering site support
        ticket       Manage site tickets
 
template/     Edit and import a configuration from a template
       apply          Process and apply the current configuration to the current CIB
       delete         Delete a configuration
       edit           Edit a configuration
       list           List configurations/templates
       load           Load a configuration
       new            Create a new configuration from templates
       show           Show the processed configuration