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

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

Thanks Jimbob for your quick response. 

So no one bothers to develop something to keep the ftp state in RAM synchronized? Or maybe it is not possible?

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: jimbob palmer [mailto:jimbobpalmer at gmail.com] 
Sent: August 26, 2010 10:45 AM
To: The Pacemaker cluster resource manager
Subject: Re: [Pacemaker] how to keep ftp connection when swap from primaryto secondary

The ftp connection is in the ram of the machine that dies, so for this
to work you'd need to synchronise state to the other machine the whole
time. I don't know of a cluster aware ftp server that can do this.

2010/8/26  <Liang.Ma at asc-csa.gc.ca>:
> Hi There,
>
>
>
> 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?
>
>
>
> Thanks,
>
>
>
> 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 ]
>
>
>
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>
>

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