6.2. 触发 indexserver 崩溃恢复

流程

1. 以 < sid>adm 用户身份，使用单独的终端来监控 HANA 实例进程：

   rh1adm $ watch "sapcontrol -nr ${TINSTANCE} -function GetProcessList | column -s ',' -t"

2. 在另一个终端中，终止 hdbindexserver 进程：

   rh1adm $ kill <PID>

验证

1. 检查同一实例上的专用 HANA 跟踪日志，识别事件和相关操作，用户 < sid>adm ：

   rh1adm $ cdtrace; less nameserver_chksrv.trc
   ...
   ChkSrv srServiceStateChanged method called with SAPSYSTEMNAME=RH1
   srv:indexserver-30203-stopping-yes db:RH1-3-yes daem:yes
   LOST: indexserver event looks like a lost indexserver (status=stopping)
   LOST: stop instance. action_on_lost=stop
   ChkSrv version 1.001.1. Method srServiceStateChanged method called.
   ...

2. 以 root 用户身份检查资源故障信息的集群状态：

   [root]# pcs status --full
   ...
   
   Failed Resource Actions:
     * rsc_SAPHanaCon_RH1_HDB02_start_0 on node1 'not running' (7): call=61, status='complete', ...
   
   ...

3. 以 root 用户身份，检查集群侧的相关操作：

   [root]# grep rsc_SAPHanaCon_RH1_HDB02 /var/log/messages
   ...
   SAPHanaController(rsc_SAPHanaCon_RH1_HDB02)[149199]: INFO: ##-2-## DEC: PRIMDEFECT (in DEMOTED status)
   SAPHanaController(rsc_SAPHanaCon_RH1_HDB02)[149206]: INFO: ##-2-## RA ==== end action monitor_clone with rc=7 (1.2.7) (3s; times=0m0.051s 0m0.079s 0m1.325s 0m1.137s)====
   pacemaker-controld[1694]: notice: Result of monitor operation for rsc_SAPHanaCon_RH1_HDB02 on node1: not running
   pacemaker-controld[1694]: notice: Transition 142 action 18 (rsc_SAPHanaCon_RH1_HDB02_monitor_61000 on node1): expected 'ok' but got 'not running'
   pacemaker-attrd[1692]: notice: Setting last-failure-rsc_SAPHanaCon_RH1_HDB02#monitor_61000[node1] in instance_attributes: (unset) -> 1746703980
   pacemaker-attrd[1692]: notice: Setting fail-count-rsc_SAPHanaCon_RH1_HDB02#monitor_61000[node1] in instance_attributes: (unset) -> 1
   pacemaker-attrd[1692]: notice: Setting master-rsc_SAPHanaCon_RH1_HDB02[node2] in instance_attributes: 100 -> 145
   pacemaker-schedulerd[1693]: warning: Unexpected result (not running) was recorded for monitor of rsc_SAPHanaCon_RH1_HDB02:0 on node1 at ...
   pacemaker-schedulerd[1693]: notice: Actions: Recover    rsc_SAPHanaCon_RH1_HDB02:0     (             Unpromoted node1 )
   pacemaker-controld[1694]: notice: Initiating monitor operation rsc_SAPHanaCon_RH1_HDB02_monitor_59000 on node2
   pacemaker-controld[1694]: notice: Initiating stop operation rsc_SAPHanaCon_RH1_HDB02_stop_0 locally on node1
   pacemaker-controld[1694]: notice: Requesting local execution of stop operation for rsc_SAPHanaCon_RH1_HDB02 on node1
   ...

   下一个 SAPHanaController 资源监控器会报告意外停止的 HANA 实例作为故障，并根据配置启动恢复步骤。如果启用了 PREFER_SITE_TAKEOVER，且测试是在主实例上执行的，它会触发 HANA 接管次要实例。