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RE: Speed up import of a 10gb table with a long_raw datatype

From: lerobe - Lee Robertson <LEROBE_at_acxiom.co.uk>
Date: Wed, 21 Feb 2001 09:40:27 -0800
Message-ID: <F001.002B9C86.20010221091308@fatcity.com>

Single stream import. I have noticed significant gains in the past when using this but to be honest I haven't yet used it on an Oracle 8 database (someone else out there may be able to say if it still performs).

Go to $ORACLE_HOME/rdbms/lib and type

make -f ins_rdbms.mk impst

if this doesn't work ( as it didn't for me) with errors on

"Can't locate file for: -lndw1"

do the following

make -f ins_rdbms.mk impst LLIBOWSUTL=""

Move the executable into $ORACLE_HOME/bin and use as per the imp command.

This also works for export, merely substitute all occurences of impst above with expst.

Hope this helps.

Regards

> Lee Robertson
> Acxiom
> Tel: 0191 525 7344
> Fax: 0191 525 7007
> Email: lerobe_at_acxiom.co.uk
>

-----Original Message-----
Sent: 21 February 2001 16:51
To: Multiple recipients of list ORACLE-L

Thanks Lee,

What is the impst command? I'm not familiar with it.

...JIM... >>> LEROBE_at_acxiom.co.uk 2/21/01 10:21:01 AM >>> You could up your buffer size and also use impst.

> Lee Robertson
> Acxiom
> Tel: 0191 525 7344
> Fax: 0191 525 7007
> Email: lerobe_at_acxiom.co.uk
>

-----Original Message-----
Sent: 21 February 2001 16:07
To: Multiple recipients of list ORACLE-L

DBA's,

Does anyone have any tips for speeding up the import of a 10gb table with a long_raw datatype. I've disabled the constraints, dropped the indexes, & put the database in noarchivelog mode.

My import parameters are:

file=/TEMP_MOUNT/imp_cflo/cfuabprd_blob.dmp log=cfuabprd_blob.log
fromuser=xxxxx
touser=xxxxxx
tables=REPORT_BLOBT
indexes=N
rows=Y
constraints=N
feedback=1000

buffer=2000000 
ignore=Y 
commit=Y

Hardware: Sun E10K 4cpu's 3gb ram
OS: solaris2.6
Oracle:8.1.6.2.1

TIA ...JIM...

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Author: lerobe - Lee Robertson
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: James Howerton
  INET: jhowerton_at_uabmc.edu

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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-- 
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-- 
Author: lerobe - Lee Robertson
  INET: LEROBE_at_acxiom.co.uk

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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Received on Wed Feb 21 2001 - 11:40:27 CST

Original text of this message

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