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What is the Cause and Fix for "Unable to open cache database" errors? (Doc ID 1362041.1)

Last updated on APRIL 19, 2023

Applies to:

Oracle Communications Calendar Server - Version 6 (2005Q4) and later
Information in this document applies to any platform.


The Calendar Server is failing to start up correctly.  Using start-cal fails to successfully start the enabled calendar services.

We are seeing the below entries in the Calendar Server admin.log.

What is the cause of this error?  And, is there anything we can do to correct it?


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