PREPARING SWITCHOVER 接受用于切换的重做数据时,逻辑备用配置会使用它 RECOVERY NEEDED 备用数据库还没有接收到切换请求 SESSIONS ACTIVE 在主数据库中存在活动的SQL会话;在继续执行之前必须断开这些会话 SWITCHOVER PENDING 适用于那些已收到主数据库切换请求但是还没有处理该请求的备用数据库 SWITCHOVER LATENT 切换没有...
A 如果switchover_status为TO_PRIMARY 说明标记恢复可以直接转换为primary库 SQL>alter database commit to switchover to primary B 如果switchover_status为SESSION ACTIVE 就应该断开活动会话 SQL>alter database commit to switchover to primary with session shutdown; C 如果switchover_status为NOT ALLOWED 说明...
DG Switchover_Status值的含义 2018-06-26 v$database Switchover_Status值的含义 NOT ALLOWED 当前的数据库不是带有备用数据库的主数据库, 主库关闭前为“NOT ALLOWED”,关闭后从库变为“TO_PRIMARY” PREPARING DICTIONARY 该逻辑备用数据库正在向一个主数据库和其他备用数据库发送它的重做数据,以便为切换做准备...
再次查看主状态 SQL> select switchover_status from v$database; SWITCHOVER_STATUS SESSIONS ACTIVE
SQL> select switchover_status,database_role,open_mode from v$database;SWITCHOVER_STATUS DATABAS...
1. 现象 今天在做一套RAC DG的switchover演练,将备库两个节点都开启时查询v$database的switchover状态报如下错误 2. 原因查找 由于在只开启一个节点的时候是正常显示SESSION ACTIVE的 ,这时查询全局视图 发现原备库的2节点的报错为FAILED DESTINATION 这时查看二节点的alert日志 ...
SWITCHOVER_STATUS状态一直为SESSIONS ACTIVE 如图显示:备库显示不正常,可能是主备库没有连接 解决方法: 1. 俩数据库重新启动到mount状态就可以变为正常。 2. 待续...
SWITCHOVER_STATUS NOTALLOWED-Onaprimarydatabase,thisstatusindicatesthattherearenovalidandenabledstandbydatabases.Onastandbydatabase,thisstatusindicatesthataswitchoverrequesthasnotbeenreceivedfromtheprimarydatabase. SESSIONSACTIVE-Thedatabasehasactivesessions.Onaphysicalstandbydatabase,theWITHSESSIONSHUTDOWNSQLclausemust...
Tue Dec 21 20:14:37 2021Thread 1 advanced to log sequence 7093 (LGWR switch) Current log# 1 seq# 7093 mem# 0: /home/db/app/oracle/oradata/orcl/redo01.logArchived Log entry 7094 added for thread 1 sequence 7092 ID 0x608638d7 dest 1:...
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"...