PATCH: Plan to avoid pause while dhcpd rewrites dhcpd.leases

[Mihail Balikov]

Why not just to fork() dhcpd while it will write dhcpd.leases file?

----- Original Message ----- 
From: "Nick Urbanik" <nick.urbanik at optusnet.com.au>
To: <dhcp-hackers at isc.org>
Sent: Friday, May 18, 2007 10:31 AM
Subject: PATCH: Plan to avoid pause while dhcpd rewrites dhcpd.leases


> Content-Type: text/plain; charset=us-ascii; format=flowed
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> Dear Folks,
> 
> On 24/04/07 10:43 +1000, Nick Urbanik wrote:
> >Dear Folks,
> >
> >I aim to implement a scheme proposed by my colleague to avoid the need
> >for dhcpd to stop and rewrite the leases.  Here is an outline of the
> >plan:
> 
> Well, I've written one.  Please could I have your comments?  I have
> also written a program dhcp-aggregate to aggregate the leases files.
> 
> The aim is for large failover systems to be able to continue
> communicating, and not have to stop for five minutes to re-write 250
> MB lease files.
> 
> This is our solution to the problem of the dhcp server occasionally
> failing to resume normal communication after entering the
> communications-interrupted state while re-writing lease files.
> --=20
> Nick Urbanik http://nicku.org  x-71011 nick.urbanik at optusnet.com.au
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