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High PGA Usage And ORA-04030 When Using XMLDIFF (Doc ID 1470452.1)

Last updated on FEBRUARY 18, 2022

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.


Using XMLDIFF with two files having the size above 2MB raises the error
ORA-04030: out of process memory when trying to allocate 253984 bytes (lpxHeap subhea,qmxsaxAllocMemInternal)


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