[Pacemaker] how to keep ftp connection when swap from primary to secondary

[Liang.Ma at asc-csa.gc.ca]

Hi,

I installed ipvsadm and ran

ipvsadm --start-daemon=master --mcast-interface=eth0

in master node and 

ipvsadm --start-daemon=backup --mcast-interface=eth0

in backup node. But still i lost ftp connection during node swap.


Liang Ma
Contractuel | Consultant | SED Systems Inc. 
Ground Systems Analyst
Agence spatiale canadienne | Canadian Space Agency
6767, Route de l'Aéroport, Longueuil (St-Hubert), QC, Canada, J3Y 8Y9
Tél/Tel : (450) 926-5099 | Téléc/Fax: (450) 926-5083
Courriel/E-mail : [liang.ma at space.gc.ca]
Site web/Web site : [www.space.gc.ca ] 




-----Original Message-----
From: Ma, Liang 
Sent: August 26, 2010 12:17 PM
To: 'The Pacemaker cluster resource manager'
Subject: RE: [Pacemaker] how to keep ftp connection when swap from primary to secondary

Thank you Raoul. I will try it.

Liang Ma
Contractuel | Consultant | SED Systems Inc. 
Ground Systems Analyst
Agence spatiale canadienne | Canadian Space Agency
6767, Route de l'Aéroport, Longueuil (St-Hubert), QC, Canada, J3Y 8Y9
Tél/Tel : (450) 926-5099 | Téléc/Fax: (450) 926-5083
Courriel/E-mail : [liang.ma at space.gc.ca]
Site web/Web site : [www.space.gc.ca ] 




-----Original Message-----
From: Raoul Bhatia [IPAX] [mailto:r.bhatia at ipax.at] 
Sent: August 26, 2010 11:17 AM
To: The Pacemaker cluster resource manager
Subject: Re: [Pacemaker] how to keep ftp connection when swap from primary to secondary

On 08/26/2010 04:42 PM, Liang.Ma at asc-csa.gc.ca wrote:
> I have followed the guide in "Clusters from Scratch" written by Andrew
> Beekhof and successfully setup an Active/Passive pair of cluster
> servers. The cluster runs in Fedora 13 and includes services like
> apache, vsftpd and nfs. Drbd is used to allow data consistence during a
> failover. Everything works fine except ftp lose its connection when the
> service swaps from primary to the secondary or vice versa. I know to
> keep the ftp connection, one may need to keep the connection states for
> the session across the nodes. But I couldn't find clue how to do it.
> Does anyone there have any idea how to keep the ftp connection when
> swapping nodes, if it is possible?

hi,

as of now, we're not syncing our connections between the load
balancers, but i would suggest
http://www.linuxvirtualserver.org/docs/sync.html and the like.


cheers,
raoul
-- 
____________________________________________________________________
DI (FH) Raoul Bhatia M.Sc.          email.          r.bhatia at ipax.at
Technischer Leiter

IPAX - Aloy Bhatia Hava OG          web.          http://www.ipax.at
Barawitzkagasse 10/2/2/11           email.            office at ipax.at
1190 Wien                           tel.               +43 1 3670030
FN 277995t HG Wien                  fax.            +43 1 3670030 15
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