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Database does not start after a Windows server reboot and clients are still attempting to connect because of a SID_LIST section in the listener.ora (Doc ID 3003149.1)

Last updated on FEBRUARY 07, 2024

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Net Services - Version and later
Microsoft Windows x64 (64-bit)


When the Windows Server is restarted, the database intermittently does not OPEN.
Connections will fail with:
ORA-1034: ORACLE not available
ORA-27101: Shared Memory Realm Does Not Exist


The Windows Server was restarted but you have Clients (such as Applications like W3WP.EXE) that try and continue to connect while the DB is opening.


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