connection pools and listener log

From: Herring Dave - dherri <Dave.Herring_at_acxiom.com>
Date: Fri, 25 Feb 2011 23:46:13 +0000
Message-ID: <BD475CE0B3EE894DA0CAB36CE2F7DEB403FB95_at_LITIGMBCRP02.Corp.Acxiom.net>



Folks,

I'm trying to match up database logons with what I'm seeing in the local listener log and coming up way short, so hopefully one of you can enlighten me.

Our configuration is Oracle 10gR2 on RHEL 4.6. There are a number of application servers that connect using a connection pool. I reviewed AWR "logons cumulative" statistic recently and saw that 1 instance regularly gets around 1,000 per hr. Checking the local listener log for "established" I found a number more like 10,000 per hour. How can that be? Don't "established" connections via the listener have to match up with the database "logons cumulative"? If not, what is it that's being sent by the application that the listener sees as a request to "establish" a connection but not really connect to the database?

Thx.

DAVID HERRING
DBA
Acxiom Corporation

EML   dave.herring_at_acxiom.com
TEL    630.944.4762
MBL   630.430.5988 

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Received on Fri Feb 25 2011 - 17:46:13 CST

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