红帽全球峰会5.3. 监控故障转移示例
有多种方法可以强制接管。本例强制在不关闭节点的情况下强制接管。SAP 资源代理与分数一起工作，以决定哪个节点将提升 SAPHana 克隆资源。使用这个命令查看当前状态：
[root@saphdb2:~]# alias pss='pcs status --full | egrep -e "Node|master|clone_state|roles"'
[root@saphdb2:~]# pss
Node List:
Node Attributes:
* Node: saphdb1 (1):
* hana_hdb_clone_state : PROMOTED
* hana_hdb_roles : master1:master:worker:master
* master-rsc_SAPHana_HDB_HDB00 : 150
* Node: saphdb2 (2):
* hana_hdb_clone_state : DEMOTED
* hana_hdb_roles : slave:slave:worker:slave
* master-rsc_SAPHana_HDB_HDB00 : -10000
* Node: saphdb3 (3):
* hana_hdb_clone_state : DEMOTED
* hana_hdb_roles : master1:master:worker:master
* master-rsc_SAPHana_HDB_HDB00 : 100
* Node: saphdb4 (4):
* hana_hdb_clone_state : DEMOTED
* hana_hdb_roles : slave:slave:worker:slave
* master-rsc_SAPHana_HDB_HDB00 : -12200
在本例中，SAPHana 克隆资源被提升在 saphdb1 上。因此，主数据库在 saphdb1 上运行。此节点的分数为 150，您可以调整二级 saphdb3 的分数，以强制 pacemaker 将数据库接管到次要。
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