corosync+pacemaker的crmsh的常用指令介绍

• 配置crmsh的yum仓库，此仓库的RPM包有openSUSE提供，将这个network:ha-clustering:Stable.repo文件直接下载到本地并且命名为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，执行help命令，可以查看shell接口所有的一级命令和二级命令，使用cd 可以切换到二级子命令的目录中去，可以执行二级子命令

在集群中的资源有四类：primitive主资源、group组资源、clone克隆资源、ms/master主从资源

在集群中的约束有三种：

①：location位置约束：资源间的依赖/互斥性，定义资源是否运行在同一节点上。score，正值表示要运行在同一节点上，负值则不可。 
②：colocation排列约束：每个节点都有一个score值，正值则倾向于本节点，负值倾向于其他节点，所有节点score比较，倾向于最大值的节点。 
③：order顺序约束：定义资源执行动作的次序，例如vip应先配置，httpd服务后配置。特殊的score值，-inf 负无穷，inf 正无穷。

 

常用指令介绍：

crm(live)# help

Help overview for crmsh

 

 

Available topics:(可用主题)

 

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            切换命令层级，例如 cd cluster：切换到cluster二级命令
      help          查看帮助
      ls            列出命令层级和命令
      quit          退出
      report        报告
      status        查看集群状态，可以有参数 help status 可以查看
      up            回到上一个命令层级
      verify        验证集群状态
      assist/       Configuration assistant 配置集群代理
           template Create template for primitives
           weak-bond Create a weak bond between resources

      cib/          CIB shadow management
           cibstatus      CIB status management and editing (CIB状态管理和编辑)
           commit         Copy a shadow CIB to the cluster  (将影子CIB复制到集群)
           delete         Delete a shadow CIB   (删除阴影CIB)
           diff           Diff between the shadow CIB and the live CIB (阴影CIB和活动CIB的区别)
           import         Import a CIB or PE input file to a shadow  (将CIB或PE输入文件导入到阴影中)
           list           List all shadow CIBs    (列出所有阴影CIB)
           new            Create a new shadow CIB  (创建一个新的CIB)
           reset          Copy live cib to a shadow CIB  (将活动CIB复制到影子CIB)
           use            Change working CIB   (改变工作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            给集群添加节点
           copy           拷贝文件到另外一个集群的节点
           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         集群的健康状态检查
           init           初始化集群
           join           加入到已经存在的集群
           remove         从集群中移除一个节点
           run            在所有集群节点执行一条命令
           start          启动集群服务
           status         集群状态检查
           stop           停止集群服务
           wait_for_startup Wait for cluster to start

      configure/   CIB configuration cib 集群配置（很重要，最重要的命令用中文注释了）
           acl_target     Define target access rights
           alert          Event-driven alerts
           cib            CIB shadow management
           cibstatus      CIB status management and editing
           clone          定义克隆资源
           colocation     设置排列约束
           commit         Commit the changes to the CIB
           default-timeouts Set timeouts for operations to minimums from the meta-data
           delete         Delete CIB objects
           edit           编辑集群配置文件，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          定义组资源
           load           Import the CIB from a file
           location       设置位置约束
           modgroup       Modify group
           monitor        Add monitor operation to a primitive
           ms             定义主从资源
           node           Define a cluster node
           op_defaults    Set resource operations defaults
           order          设置顺序约束
           primitive      定义主资源
           property       设置集群的属性
           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 设置集群的历史信息
           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 维护模式的命令
          action         Invoke a resource action
          off            Disable maintenance mode
          on             Enable maintenance mode

     node/        Node management 节点管理（很重要）
         attribute      管理、查看节点属性
         clearstate     Clear node state
         delete         删除节点
         fence          Fence 一个节点
         maintenance    Put node into maintenance mode
         online         让节点上线, 例如：node online node2
         ready          Put node into ready mode
         server         Show node hostname or server address
         show           查看集群中的节点
         standby        让一个节点standy，例如：node standby node1
         status         查看集群中节点的状态
         status-attr    管理集群中节点的属性
         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/       资源代理管理操作（很重要）
         classes        列出资源类别和提供者，例如：ra classes
         info           查看脚本的使用方法，例如：ra info IPaddr2
         list           列出一个类别中有多少可用的资源代理，例如：ra list lsb 或 ra list ocf
         providers      查看特定资源代理有哪个提供者提供，例如：ra providers IPaddr2
         validate       Validate parameters for RA

     resource/    Resource management 资源管理（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          将某个资源迁移到哪个节点上去
         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