Very Slow Performance While Import For Particular Table
Last updated on JULY 04, 2014
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206 to 220.127.116.11 [Release 9.2 to 11.2]
Information in this document applies to any platform.
***Checked for relevance on 04-Jul-2014***
Traditional import (imp) is slow on a particular table. Process state dump shows, imp is waiting for 'log file sync':
waiting for 'log file sync' blocking sess=0x0 seq=4338 wait_time=0
If you import with COMMIT=N, the import is quick.
From event 10046 you always see the waiting statement:
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms