After Upgrade to 12c SecureFile LOB Writes are Slow With High Waits on 'db file sequential read'
(Doc ID 2189248.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Information in this document applies to any platform.
LOB writes slow, db file sequential read
- After upgrade to 12c SecureFile LOB writes are slow
- Top event in the AWR observed is db file sequential read' wait event during LOB writes and majority of the reads are UNOPTIMIZED reads based on segment statistics section
- Stack may look similar to the following:
Upgrade to 12c
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document