Bug 32768752 Database startup in RAC One Node Fails With ORA-24544

刘泽宇

受影响的版本：       
19.12.0
19.11.0
19.10.0

现象:
Instance May Crash

描述：
RAC One Node database startup may fail with ORA-24544 following Shutdown Abort.


报警日志可能显示：
2021-03-30T08:19:44.049828+02:00
Instance terminated by USER(prelim), pid = 50528952
2021-03-30T08:19:44.056168+02:00
Warning: 51 processes are still attacheded to shmid 89140843:
(size: 32768 bytes, creator pid: 36766312, last attach/detach pid: 50528952)
2021-03-30T08:19:48.523520+02:00
ERROR: Starting the second instance is not allowed in RAC One Node <<<<<<<<<<<<
2021-03-30T08:19:54.203275+02:00
Starting ORACLE instance (normal) (OS id: 45154980)

可用方法：
Wait 10 seconds or so before starting up the database instance.