RE: Informatica Bulk Mode behavior
- From: "Khedr, Waleed" <Waleed.Khedr@xxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 22 Apr 2004 11:24:23 -0400
I use it. It's using direct load OCI.
Never had your problem.
What is the extent size (initial/next ) for the table? Are they using =
multithread in the mapping?
Waleed
-----Original Message-----
From: Thomas Jeff [mailto:jeff.thomas@xxxxxxxxxxx]
Sent: Thursday, April 22, 2004 10:33 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: Informatica Bulk Mode behavior
List,
Is anyone familiar with how Informatica's bulk mode works? =20
We have a situation where I created a 4GB tablespace for a new and
simple=20
truncate/load operation from Informatica, around 7 million rows
estimated=20
to take up 1.5GB. =20
=20
Using bulk mode, which appears to be a direct load (in the SQL cache,
the=20
INSERT statement has a hint that I've never seen before: SYS_DL_CURSOR
which=20
I assume stands for Direct Load), they run out of space in the
tablespace after=20
about 200K rows have been inserted.
If I then manually rebuild the table, the 200K rows gets compressed back
down=20
to one extent.
So there's a lot of either empty or preallocated space. Thinking
somehow=20
the high-water mark was the culprit, I manually truncated the table
before=20
they reran their job. =20
Still the same problem. =20
If the job runs in 'normal' mode, which is row-by-row processing, it
runs fine,=20
although of course, performance is quite poor.
Any ideas/experience as to how this bulk mode operates?
Thanks.
--------------------------------------------
Jeffery D Thomas
DBA
Thomson Information Services
Thomson, Inc.
Email: jeff.thomas@xxxxxxxxxxx
Indy DBA Master Documentation available at:
http://gkmqp.tce.com/tis_dba
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