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RE: Soft start for ldirectord

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: RE: Soft start for ldirectord
Cc: horms@xxxxxxxxxxxx
From: "Purcocks, Graham" <grahamp@xxxxxxxxxxxxx>
Date: Wed, 18 May 2005 07:29:09 -0400
All

I think it is working. I was used to seeing the weight increase slowly
when a new server comes back on line, so it must have been handled
outside of ipvsadm. What I read now is ipvsadm handles it itself when
you change the weight. I noticed when I brought the new server online
and the weight was still 0 that traffic started to be sent to it, but
only  a little. I then put the weight back up to 1000 and I will assume
that even though the weight was shown as 1000 it was being gradually
brought up.

Can anyone say what the correct procedure should be for rebooting real
servers *gracefully* using ldirectord? I started by putting the weight
to 0 but am unclear if I need to do anything after bringing the service
back up, if anything.

Thanks for the pointers. 

Graham

-----Original Message-----
From: lvs-users-bounces+grahamp=wsieurope.com@xxxxxxxxxxxxxxxxxxxxxx
[mailto:lvs-users-bounces+grahamp=wsieurope.com@xxxxxxxxxxxxxxxxxxxxxx]
On Behalf Of Mack.Joseph@xxxxxxxxxxxxxxx
Sent: 17 May 2005 16:39
To: LinuxVirtualServer.org users mailing list.
Cc: horms@xxxxxxxxxxxx
Subject: Re: Soft start for ldirectord

Joseph Mack PhD, High Performance Computing & Scientific Visualisation
LMIT, Supporting the EPA Research Triangle Park, NC 919-541-0007 Federal
Infrastructure Contact-Ravi Nair 919-541-5467 - nair.ravi@xxxxxxx,
Federal Visualization  Contact - Joe Retzer, Ph.D. 919-541-4190 -
retzer.joseph@xxxxxxx

lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx wrote on 05/17/2005 10:45:42
AM:


> Is there a way to soft start real servers when they come
> back up using ldirectord?

As the person writing all this up, I thought that LVS
had slow start from the very beginning, then I found
several years later that it didn't, and then I thought
Horms put it in, but I'm not sure now. I've written
about its appearance and disappearance in the HOWTO.
If you found that it's still not there, then it isn't
I guess

Horms, do you know if LVS has slow start?

Joe

> I just rebooted a server and took its weight
> down to zero and then rebooted. I had to put
> the weight back to normal by hand.



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