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RE: why so many log switches?

From: Deshpande, Kirti <kirti.deshpande_at_verizon.com>
Date: Thu, 30 Jan 2003 16:14:30 -0800
Message-ID: <F001.0053FE1D.20030130161430@fatcity.com>


Randy,
 This is a long shot... but..
 do you run hot backup when the data gets loaded?

-----Original Message-----

Sent: Thursday, January 30, 2003 2:56 PM To: Multiple recipients of list ORACLE-L

I have 5 indexes on that table, 3 of them are concatenated indexes.

 -----Original Message-----

Sent:	Thursday, January 30, 2003 3:02 PM
To:	Multiple recipients of list ORACLE-L
Subject:	RE: why so many log switches?

Those redo could be because of indexes? How many indexes do you have on your 40 million row table?

-----Original Message-----

Sent: Thursday, January 30, 2003 2:20 PM To: Multiple recipients of list ORACLE-L

I have a table with 40 million rows. Daily I load about 70,000 records into it. Each record is 128 characters wide. The flat file the data comes in is 9 megs. My redo logs are 20 megs each and I have 3 groups of them.

When I load the data, the alert log shows 29 log switches which generates a lot of archives logs. Why am I getting so many log switches? I would think that if the OS file is 9 megs and the redo logs are 20, I would at most get 1 log switch.

Thanks,
Randy
-

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Author: Deshpande, Kirti
  INET: kirti.deshpande_at_verizon.com

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