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Re: perl timeout

From: <Jared.Still_at_radisys.com>
Date: Tue, 14 Jan 2003 12:24:12 -0800
Message-ID: <F001.0052F915.20030114122412@fatcity.com>


Try killing the processes for an Oracle test database.

The goal is to fool the listener into thinking the database is still up, and creating a server, which should then hang.

It's worked for me in the past, but not always 100%. May take a few tries.

Jared

David Turner <turner_at_tellme.com>
Sent by: root_at_fatcity.com
 01/14/2003 10:46 AM
 Please respond to ORACLE-L  

        To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
        cc: 
        Subject:        Re: perl timeout


Thx I left your book in Missouri:( Now I'm trying to simulate a database with
hanging connections to test the script. Anyone know how best to simulate that?

Dave
On Mon, Jan 13, 2003 at 07:43:29PM -0800, Jared Still wrote:
>
> Gee Dave, I know of a book that has scripts that
> already do this. ;)
>
> Here's an untested bit of code to demonstrate.
>
> my $dbh;
>
> eval {
>
> local $SIG{ALRM} = sub {
> die "connection timeout\n";
> };
>
> alarm 60;
>
> $dbh = DBI->connect(
> 'dbi:Oracle:' . $db,
> $username, $password,
> {
> RaiseError => 1,
> AutoCommit => 0,
> }
>
> );
>
> };
>
> # the alarm reset must be outside the eval{}
> alarm 0;
>
> I say untested cuz I simplified it a bit after lifting
> it from a script.
>
> HTH,
>
> Jared
>
> On Monday 13 January 2003 15:49, David Turner wrote:
> > Does anyone have some perl code that will return an error if it take
longer
> > than a certain number of seconds to connect to or return the results
from a
> > database? I'd like to have some of my queries connect to an alternate
> > database if there is a problem connecting or returning results within
10
> > seconds. Any other suggestions are appreciated.
> >
> > Dave

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: David Turner
  INET: turner_at_tellme.com

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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: 
  INET: Jared.Still_at_radisys.com

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Received on Tue Jan 14 2003 - 14:24:12 CST

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