9.8. 使用 SNMP 查询 Pacemaker 集群（Red Hat Enterprise Linux 7.5 及更新的版本）
从 Red Hat Enterprise Linux 7.5 开始，您可以使用
pcs_snmp_agent 守护进程通过 SNMP 查询 Pacemaker 集群的数据。pcs_snmp_agent 守护进程是一个 SNMP 代理，通过代理 x 协议连接到主代理 (snmpd)。pcs_snmp_agent 代理不充当独立代理，因为它仅向主代理提供数据。
以下流程为系统设置基本配置，以便在 Pacemaker 集群中使用 SNMP。您可以在集群的每个节点上运行此步骤，您将使用 SNMP 为集群获取数据。
- 在群集的每个节点上安装
pcs-snmp软件包。这还将安装提供sn软件包。mp 守护进程的 net-snmp#
yum install pcs-snmp - 将以下行添加到
/etc/snmp/snmpd.conf配置文件，以将snmpd守护进程设置为主代理x。master agentx
- 将以下行添加到
/etc/snmp/snmpd.conf配置文件，以在同一 SNMP 配置中启用pcs_snmp_agent。view systemview included .1.3.6.1.4.1.32723.100
- 启动
pcs_snmp_agent服务。#
systemctl start pcs_snmp_agent.service#systemctl enable pcs_snmp_agent.service - 要检查配置，请使用 pcs status 显示群集的状态，然后尝试从 SNMP 获取数据，以检查它是否与输出对应。请注意，当使用 SNMP 获取数据时，只会提供原始资源。以下示例显示了在运行中的群集上使用失败操作的 pcs status 命令的输出结果。
#
pcs statusCluster name: rhel75-cluster Stack: corosync Current DC: rhel75-node2 (version 1.1.18-5.el7-1a4ef7d180) - partition with quorum Last updated: Wed Nov 15 16:07:44 2017 Last change: Wed Nov 15 16:06:40 2017 by hacluster via cibadmin on rhel75-node1 2 nodes configured 14 resources configured (1 DISABLED) Online: [ rhel75-node1 rhel75-node2 ] Full list of resources: fencing (stonith:fence_xvm): Started rhel75-node1 dummy5 (ocf::pacemaker:Dummy): Stopped (disabled) dummy6 (ocf::pacemaker:Dummy): Stopped dummy7 (ocf::pacemaker:Dummy): Started rhel75-node2 dummy8 (ocf::pacemaker:Dummy): Started rhel75-node1 dummy9 (ocf::pacemaker:Dummy): Started rhel75-node2 Resource Group: group1 dummy1 (ocf::pacemaker:Dummy): Started rhel75-node1 dummy10 (ocf::pacemaker:Dummy): Started rhel75-node1 Clone Set: group2-clone [group2] Started: [ rhel75-node1 rhel75-node2 ] Clone Set: dummy4-clone [dummy4] Started: [ rhel75-node1 rhel75-node2 ] Failed Actions: * dummy6_start_0 on rhel75-node1 'unknown error' (1): call=87, status=complete, exitreason='', last-rc-change='Wed Nov 15 16:05:55 2017', queued=0ms, exec=20ms#
snmpwalk -v 2c -c public localhost PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterPACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterName.0 = STRING: "rhel75-cluster" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterQuorate.0 = INTEGER: 1 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterNodesNum.0 = INTEGER: 2 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterNodesNames.0 = STRING: "rhel75-node1" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterNodesNames.1 = STRING: "rhel75-node2" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterCorosyncNodesOnlineNum.0 = INTEGER: 2 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterCorosyncNodesOnlineNames.0 = STRING: "rhel75-node1" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterCorosyncNodesOnlineNames.1 = STRING: "rhel75-node2" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterCorosyncNodesOfflineNum.0 = INTEGER: 0 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterPcmkNodesOnlineNum.0 = INTEGER: 2 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterPcmkNodesOnlineNames.0 = STRING: "rhel75-node1" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterPcmkNodesOnlineNames.1 = STRING: "rhel75-node2" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterPcmkNodesStandbyNum.0 = INTEGER: 0 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterPcmkNodesOfflineNum.0 = INTEGER: 0 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesNum.0 = INTEGER: 11 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.0 = STRING: "fencing" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.1 = STRING: "dummy5" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.2 = STRING: "dummy6" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.3 = STRING: "dummy7" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.4 = STRING: "dummy8" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.5 = STRING: "dummy9" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.6 = STRING: "dummy1" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.7 = STRING: "dummy10" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.8 = STRING: "dummy2" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.9 = STRING: "dummy3" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterAllResourcesIds.10 = STRING: "dummy4" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterRunningResourcesNum.0 = INTEGER: 9 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterRunningResourcesIds.0 = STRING: "fencing" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterRunningResourcesIds.1 = STRING: "dummy7" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterRunningResourcesIds.2 = STRING: "dummy8" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterRunningResourcesIds.3 = STRING: "dummy9" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterRunningResourcesIds.4 = STRING: "dummy1" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterRunningResourcesIds.5 = STRING: "dummy10" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterRunningResourcesIds.6 = STRING: "dummy2" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterRunningResourcesIds.7 = STRING: "dummy3" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterRunningResourcesIds.8 = STRING: "dummy4" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterStoppedResroucesNum.0 = INTEGER: 1 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterStoppedResroucesIds.0 = STRING: "dummy5" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterFailedResourcesNum.0 = INTEGER: 1 PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterFailedResourcesIds.0 = STRING: "dummy6" PACEMAKER-PCS-V1-MIB::pcmkPcsV1ClusterFailedResourcesIds.0 = No more variables left in this MIB View (It is past the end of the MIB tree)
