O/S-Error: (OS 121) The semaphore timeout period has expired.
(Doc ID 2280813.1)
Last updated on SEPTEMBER 04, 2018
Applies to:Oracle Database - Standard Edition - Version 126.96.36.199 to 188.8.131.52 [Release 12.1 to 12.2]
Below error is spotted in alert log and database failed
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