如果是SWICHOVER_STATUS显示为SESSIONS ACTIVE, 说明当前有人连接Primary数据库 查询备库是否支持switchover操作 StandBy>selectswitchover_statusfromv$database; SWITCHOVER_STATUS---NOTALLOWED NOT ALLOWED是因为主库还未变切换为standby 二、primary数据库切换为物理standby Primary—>StandBy Primary>alterdatabasecommitt...
C 如果switchover_status为NOT ALLOWED 说明切换标记还没收到,此时不能 执行转换。 切换中 : 备用库 SQL> select DATABASE_ROLE from v$database; DATABASE_ROLE --- PHYSICAL STANDBY SQL> select OPEN_MODE,PROTECTION_MODE,PROTECTION_LEVEL,SWITCHOVER_STATUS from v$database; OPEN_MODE PROTECTION_MODE PROT...
原备库现主库查看 SQL>setlinesize999 selectname,open_mode,database_role,protection_mode,switchover_statusfromv$database; 我们可以看到主备已经切换完成,整个过程也比较顺利。期间也出现了两个问题,现在总结一下。 1、切换过程中备库SWITCHOVER_STATUS状态为NOT ALLOWED。 解决方法: 先看告警日志 SQL>show para...
没有集群处于 SWITCHING 状态,不能让备集群 Switchover 成为主集群。当备集群处于 NOT ALLOWED 状态时可能出现该信息。 处理方法 在主集群上执行以下命令,查询各集群的状态,确认之前是否成功执行了主集群切换为备集群的操作。 obclient> SELECT SWITCHOVER_STATUS FROM V$OB_CLUSTER; 字段值 11:PRIMARY CLUSTER NOT ...
ERROR HY000: switchover status not match, failover to primary is not allowed ERROR HY000: switchover status not match, switchover to standby is not allowed报错原因执行租户角色切换操作时,要求当前租户不能处于不匹配的中间角色切换状态,否则将会导致 SWITCHOVER STATUS 状态不符合预期,就会出现以上报错。例...
select switchover_status from v$database; 1. 补充:如果发现not allowed状态 根据文档 Physical Standby Switchover_status Showing Not Allowed. (文档 ID 1392763.1),如果确定切换前主从是同步的,可以忽略Not Allowed 状态直接进行switchover。 5. 将原dg库切换为主库 ...
Before we initiate the switchover, we check the synchronization status between primary and physical standby. They are in perfect sync. Physical standby has applied the lastly generated archived redo log sequence. But in physical standby v$database.switchover_status shows "not allowed"...
SWITCHOVER_STATUS NOTALLOWED-Onaprimarydatabase,thisstatusindicatesthattherearenovalidandenabledstandbydatabases.Onastandbydatabase,thisstatusindicatesthataswitchoverrequesthasnotbeenreceivedfromtheprimarydatabase. SESSIONSACTIVE-Thedatabasehasactivesessions.Onaphysicalstandbydatabase,theWITHSESSIONSHUTDOWNSQLclausemust...
在切换集群角色前,可以通过V$OB_CLUSTER视图的SWITCHOVER_STATUS列,查看是否可以切换。如果为NOT ALLOWED或其他值,说明当前不满足切换条件。 obclient>SELECTSWITCHOVER_STATUS,SWITCHOVER_INFOFROMV$OB_CLUSTER;+---+---+|SWITCHOVER_STATUS|SWITCHOVER_INFO|+---+---+|TOSTANDBY|SYNCED STANDBY CLUSTERS:2,...
（4）验证 1 1：查询新主库是否能够读写select OPEN_MODE,PROTECTION_MODE,PROTECTION_LEVEL,SWITCHOVER_STATUS from v$database;可以读写了 2 2：新主库进行切换，备库apply正常在新主库各个节点切换，备库查看apply之后的归档，发现apply成功 3 3：查看新备库SWITCHOVER_STATUS这时候新备库又变成not allowed ...