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Performance Problems In a RAC Database Using Smart Flash Cache (Doc ID 1981471.1)

Last updated on FEBRUARY 27, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.1]
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on x86-64 (64-bit)
Linux x86-64
Linux Itanium


When performing a parallel Data Pump import in a RAC database using the 12c new 'smart flash cache' feature next symptoms were noticed in the database:

and following wait events:

If smart flash cache is disabled then there are no problems with database performance when performing the import.




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