Load Balancing + File Locking

[Boulytchev, Vasiliy]

Unfortunately, our budget is limited.  We really need to have independent
boxes scanning the Submitted folder.  That would be ideal.  If money was not
an issue, then I would definitely stick this on Beowulf.


Vasiliy Boulytchev
Colorado Information Technologies, Inc.
http://www.coinfotech.com

-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf
Of Ugo Bellavance
Sent: Thursday, September 30, 2004 2:51 PM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: Load Balancing + File Locking


Boulytchev, Vasiliy wrote:

> Ladies and Gents,
>         The loads on the mail server require us to start moving
> Mailscanner with Spam and Virus filtering to other machines.  Questions:
>         1.)     How does MS do the locking on files in the submitted
> directory (after cgp2ms)?  If NFS3 is used to mount that shared folder
> on say 3 servers designated to only scanning mail, how do we avoid
run-ons?
>         2.)     Idea: if the local procs keep track of locking, then we
can
> toss all that into mysql for example? :)))  Just thinking of ways to
> add scalability.

Isn't it simpler to use MX records to do your load balancing?  Or a hardware
load balancer like coyotelinux sells?

>
> Thanks,
>
> Vasiliy Boulytchev
> Colorado Information Technologies, Inc.
> http://www.coinfotech.com
>
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