ORA-4031 on Large Pool at RMAN backup
(Doc ID 1941835.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle Database - Enterprise Edition - Version 188.8.131.52 and later
Information in this document applies to any platform.
Running RMAN backup, the alert log reports and ORA-4031 error like below:
'ORA-4031: unable to allocate 2048024 bytes of shared memory ("large pool","unknown object","large pool","PX msg pool")'
The instance has been configured to use Automatic Memory Management (AMM).
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