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Re: Listener

From: Scott Stefick <sstefick_at_harpercollege.edu>
Date: Mon, 14 Apr 2003 14:38:47 -0800
Message-ID: <F001.00580E84.20030414143847@fatcity.com>


CP,

When you stop and re-start the LISTENER, the connections that have already been established will not be affected. The connections that are trying to connect will not be able to until the listener is back up.

The listener listens to the database and that is all. Once a connection request is coming in, it goes to the listener. The listener then hands off the connection to the proper instance and the listener is not involved with that connection anymore.

-Scott

At 12:44 PM 4/14/03 -0800, you wrote:
>Hi Gurus,
>
>We have four database instances, three of them are using Oracle8i and one
>using Oracle9i. Presently, the listener service is using Oracle8i
>binaries. Due to some issues with Intelligent Agent, we want to
>migrate/upgrade the listener service to Oracle9i. All the databases are
>accessed all the time and there are active connections to all these
>databases. My question is, if I quickly stop the listener and start the
>listener using Oracle9i environment, will there be any disruption to the
>connections which are already made to the database? Will the effect be
>limited to the connections if any made during the duration between the
>shutting down the listener and starting up the new listener? Please help
>me understand the effect of this plan.
>
>OS : Sun Solaris 32bit.
>Oracle: Oracle8i (8.1.7.4) and Oracle9i (9.2.0.1)
>
>Thanks a lot in advance!
>CP
>
>
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Scott Stefick
Systems / Oracle Certified DBA
Wm. Rainey Harper College
847.925.6130
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Author: Scott Stefick
  INET: sstefick_at_harpercollege.edu

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Received on Mon Apr 14 2003 - 17:38:47 CDT

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