ORA-19921 occurs when more than 32 rman validate scripts is running.
(Doc ID 2546760.1)
Last updated on DECEMBER 14, 2019
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Information in this document applies to any platform.
ORA-19921 occurs when more than 32 rman validate scripts is running, Customer is using shell scripts to check datafile by calling "VALIDATE CHECK LOGICAL datafile datafilenumber". There are concurrently 49 shell scripts calling rman to execute "VALIDATE CHECK LOGICAL datafile datafilenumber". Sometimes error of "ORA-19921: maximum number of 64 rows exceeded" occurs. From systemstate dump, more than 64 rman session was found running at that time.
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