RE: Redo Log contention

From: Christopher Spence <cspence_at_FuelSpot.com>
Date: Mon, 04 Jun 2001 07:55:19 -0700
Message-ID: <F001.0031A1E4.20010604063049@fatcity.com>

log parallel write and log file sync are good indications of redo log problems.
This isn't directly considered contention but more like the disk medium is too slow to keep up.

redo log space requests generally are log buffer related, meaning the buffer may be too small.

"Walking on water and developing software from a specification are easy if both are frozen."

Christopher R. Spence
Oracle DBA
Fuelspot

-----Original Message-----
Sent: Monday, June 04, 2001 4:16 AM
To: Multiple recipients of list ORACLE-L

Hello all,

How does one measure if there is a contention for redo logs?

Is it that I see that the "Log file parallel write" has waited for more than 0 (zero)?

2. You divide:-

redo log space requests/no. of redo log entries > 0.0002

Please advise.

rgds,

raja

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Author: Christopher Spence
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