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Anonymous
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Slow performance of tOracleInput

Hello everyone,
I'm trying to figure out why I'm having a performance issue wth the tOracleInput component.

The job looks like this:
tOracleInput --> tMap(with one small lookup) -->tMap(with a really small lookup) --> tOracleOutputBulkExec
The tOracleInput read rates is at 34 rows / s and considering that I have about 9 millions rows to read it will take a while...
The options I have checked:
- tOracleInput Use Cursors for 20 000 rows
On the tMap I tried to store the data on the disk without any success.
I also launch the job from the TAC with a 10gb min memory so memory is not an issue.
On the database I gathered the stats on both schema and in the job I am using a single connection. Anyone have any idea ?
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2 Replies
Anonymous
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Author

try eliminating all the possilbe issues by setting up a job with just the following:
tOracleInput-->tJavaRow
leave the tJavaRow empty and run the job to see how fast you can retrieve data.
If you're still seeing 34r/s then the issue is most likely in your DB/network layer.
If it speeds up a ton, then check the tmap lookup model (having it set to reload each row could cause the issue)
Anonymous
Not applicable
Author

Thanks, after further investigation it seems that the problem is on the DB side.