在主节点上停止 SAP HANA 数据库 - SAP HANA 开启 Amazon
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在主节点上停止 SAP HANA 数据库

描述-在正常集群操作期间停止主 SAP HANA 数据库。

运行节点-主要 SAP HANA 数据库节点

运行步骤：

  • 优雅地停止主 SAP HANA 数据库，因为 <sid>adm 

    [root@prihana ~] su - hdbadm
hdbadm@prihana:/usr/sap/HDB/HDB00> HDB stop
hdbdaemon will wait maximal 300 seconds for NewDB services finishing.
Stopping instance using: /usr/sap/HDB/SYS/exe/hdb/sapcontrol -prot
NI_HTTP -nr 00 -function Stop 400

12.11.2020 11:39:19
Stop
OK
Waiting for stopped instance using:
/usr/sap/HDB/SYS/exe/hdb/sapcontrol -prot NI_HTTP -nr 00 -function
WaitforStopped 600 2

12.11.2020 11:39:51
WaitforStopped
OK
hdbdaemon is stopped.

预期结果：

  • 集群检测到已停止的主要 SAP HANA 数据库（在节点 1 上），并将辅助的 SAP HANA 数据库（在节点 2 上）提升为主数据库。

    [root@prihana ~] pcs status
Cluster name: rhelhanaha
Stack: corosync
Current DC: sechana (version 1.1.19-8.el7_6.5-c3c624ea3d) - partition with quorum
Last updated: Tue Nov 10 17:58:19 2020
Last change: Tue Nov 10 17:57:41 2020 by root via crm_attribute on sechana

2 nodes configured
6 resources configured

Online: [ prihana sechana ]

Full list of resources:

 clusterfence   (stonith:fence_aws):    Started prihana
 Clone Set: SAPHanaTopology_HDB_00-clone [SAPHanaTopology_HDB_00]
     Started: [ prihana sechana ]
 Master/Slave Set: SAPHana_HDB_00-master [SAPHana_HDB_00]
     Masters: [ sechana ]
     Slaves: [ prihana ]
 hana-oip       (ocf::heartbeat:aws-vpc-move-ip):       Started sechana

Failed Actions:
* SAPHana_HDB_00_monitor_59000 on prihana 'master (failed)' (9): call=31,
status=complete, exitreason='',
    last-rc-change='Tue Nov 10 17:56:52 2020', queued=0ms, exec=0ms


Daemon Status:
  corosync: active/enabled
  pacemaker: active/enabled
  pcsd: active/enabled

  • 重叠 IP 地址已迁移到新的主地址（在节点 2 上）。

    [root@sechana ~] ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state
UP group default qlen 1000
    link/ether 0e:ef:dd:3c:bf:1b brd ff:ff:ff:ff:ff:ff
    inet xx.xx.xx.xx/24 brd 11.0.2.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet xx.xx.xx.xx/32 scope global eth0:1
       valid_lft forever preferred_lft forever
    inet 192.168.10.16/32 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::cef:ddff:fe3c:bf1b/64 scope link
       valid_lft forever preferred_lft forever

  • 由于设置AUTOMATED_REGISTER为 true，因此集群会重新启动出现故障的 SAP HANA 数据库，并将其注册到新的主数据库。使用以下命令验证主 SAP HANA 数据库的状态：

    hdbadm@prihana:/usr/sap/HDB/HDB00> sapcontrol -nr 00 -function GetProcessList

10.11.2020 17:59:49
GetProcessList
OK
name, description, dispstatus, textstatus, starttime, elapsedtime, pid
hdbdaemon, HDB Daemon, GREEN, Running, 2020 11 10 17:58:47, 0:01:02, 25979
hdbcompileserver, HDB Compileserver, GREEN, Running, 2020 11 10 17:58:52, 0:00:57, 26152
hdbindexserver, HDB Indexserver-HDB, GREEN, Running, 2020 11 10 17:58:53, 0:00:56, 26201
hdbnameserver, HDB Nameserver, GREEN, Running, 2020 11 10 17:58:48, 0:01:01, 25997
hdbpreprocessor, HDB Preprocessor, GREEN, Running, 2020 11 10 17:58:52, 0:00:57, 26155
hdbwebdispatcher, HDB Web Dispatcher, GREEN, Running, 2020 11 10 17:59:02, 0:00:47, 27100
hdbxsengine, HDB XSEngine-HDB, GREEN, Running, 2020 11 10 17:58:53, 0:00:56, 26204
hdbadm@prihana:/usr/sap/HDB/HDB00>

恢复程序：

  • 使用以下命令以 root 用户身份清理节点 1 上的 “失败操作”：

    [root@prihana ~] pcs resource cleanup SAPHana_HDB_00 --node prihana

  • 运行清理命令后，“操作失败” 消息应从集群状态中消失。

     [root@prihana ~] pcs status
Cluster name: rhelhanaha
Stack: corosync
Current DC: sechana (version 1.1.19-8.el7_6.5-c3c624ea3d) -
partition with quorum
Last updated: Tue Nov 10 18:01:02 2020
Last change: Tue Nov 10 18:00:45 2020 by root via crm_attribute on sechana

2 nodes configured
6 resources configured

Online: [ prihana sechana ]

Full list of resources:

 clusterfence   (stonith:fence_aws):    Started prihana
 Clone Set: SAPHanaTopology_HDB_00-clone [SAPHanaTopology_HDB_00]
     Started: [ prihana sechana ]
 Master/Slave Set: SAPHana_HDB_00-master [SAPHana_HDB_00]
     Masters: [ sechana ]
     Slaves: [ prihana ]
 hana-oip       (ocf::heartbeat:aws-vpc-move-ip):       Started sechana

Daemon Status:
  corosync: active/enabled
  pacemaker: active/enabled
  pcsd: active/enabled
[root@prihana ~]