named reloading

[Tech W.]

I tried to test it, steps as below:

(1) add a zone "x.test.com", and assign an A record into it:
    ns.x.test.com.        60 IN A    192.168.1.246

(2) to reload bind every 1 second, using a shell script:

#!/bin/sh

while [ 1 ];do
    /usr/local/bind/sbin/rndc reload
    sleep 1
done


(3) to make DNS query to this named every 1/10 second, using a perl script:

use strict;

while(1) {
    my @x = `dig ns.x.test.com \@localhost +short`;
    my $x = shift @x;
    chomp $x;
    print "wrong: $x\n" if ($x ne '192.168.1.246');

    select(undef, undef, undef, 0.1);
}


(4) run both shell and perl scripts, and watch the results output of perl script.


After tested for some time (ie, 10 minutes), I got nothing from perl script's output.

So I assume that when named is reloading, it doesn't affect user's query.
Am I right? thanks for any helps.



--- On Mon, 18/5/09, Tech W. <techwww at yahoo.com.cn> wrote:

> From: Tech W. <techwww at yahoo.com.cn>
> Subject: named reloading
> To: bind-users at lists.isc.org
> Received: Monday, 18 May, 2009, 4:16 PM
> 
> Hello,
> 
> Just asked this question again, b/c it's not easy to
> test...
> When named is reloading with 'rndc reload' command,
> client's query is coming in, what will be happened? Will
> client's request be dropped?
> 



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