RE: IMPORT sloooowwww

From: Khedr, Waleed <Waleed.Khedr_at_FMR.COM>
Date: Thu, 29 Aug 2002 09:59:16 -0800
Message-ID: <F001.004C2D2B.20020829095916@fatcity.com>

This is a good guess.

-----Original Message-----
Sent: Thursday, August 29, 2002 1:14 PM
To: Multiple recipients of list ORACLE-L

Terry,
 The 3 minutes between table could be because the new database is analysing the tables you are importing. Ron
ROR mª¿ªm

>>> TBall_at_birch.com 08/29/02 11:23AM >>> Oracle 8.1.7 on Solaris 8

I am testing and upgrade from 7.3.4 to 8.1.7. Because the test server is
solaris 8, and I can't find the patches for 7 anymore, I am trying to upgrade via an export and import. Besides, the DB is small - less than 2G.
The export was done with compress=n. There are 200+ tables to be imported.
It is taking 3+ minutes per table for the import, even on tables that have 0
rows. (Though it does take longer than that for the few tables with over
50K rows).

I have tried:

1. Simple import.
2. Import with indexes=n
3. Import with table and constraints (but not indexes) pre-created and indexes=n ignore=y
4. All of the above with the buffer set to 8M (This actually slows the import down, taking 5+ minutes per table).
5. Increasing the sort_area_size for the DB to twice as large as it was and trying the above.

In looking at how long it takes, the table imports in a second or less, but
it takes 3 minutes + to start the import of the next table. I'm not sure
what it is doing for 3 minutes after the table imports.

Does anyone have any ideas how I can speed this up? 10 hours to import a
2G. DB is extreme and unacceptable.

TIA. Terry

Terry Ball, DBA
Birch Telecom
Work: 816-300-1335
FAX: 816-300-1800
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Author: Ball, Terry
  INET: TBall_at_birch.com

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Author: Ron Rogers
  INET: RROGERS_at_galottery.org

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Author: Khedr, Waleed
  INET: Waleed.Khedr_at_FMR.COM

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To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Thu Aug 29 2002 - 12:59:16 CDT