RE: Informatica Bulk Mode behavior
- From: "Daniel Harron" <daniel@xxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 22 Apr 2004 11:44:26 -0400
Can you provide the DDL for the table and tablespace?
-Daniel
--
Daniel Harron
Database Management
IPsoft, Inc.
daniel.harron@xxxxxxxxxxx
http://www.ip-soft.net/
Phone: 888.IPSOFT8
Fax: 801.681.7664
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]
On Behalf Of Thomas Jeff
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?
We have a situation where I created a 4GB tablespace for a new and simple
truncate/load operation from Informatica, around 7 million rows estimated to
take up 1.5GB.
Using bulk mode, which appears to be a direct load (in the SQL cache, the
INSERT statement has a hint that I've never seen before: SYS_DL_CURSOR
which I assume stands for Direct Load), they run out of space in the
tablespace after about 200K rows have been inserted.
If I then manually rebuild the table, the 200K rows gets compressed back
down to one extent.
So there's a lot of either empty or preallocated space. Thinking
somehow
the high-water mark was the culprit, I manually truncated the table before
they reran their job.
Still the same problem.
If the job runs in 'normal' mode, which is row-by-row processing, it runs
fine, 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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