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Hi!

I'm currently in the preliminary planning phases of a content
delivery system. We will be generating pdfs on the fly containing our
member's statements. The system will be accessible both from our
internal systems and through our web-banking portal. As we hope to
eventually migrate a large percentage of our membership away from
paper statements entirely (with their permission of course:) it is of
paramount importance that the system be available 24/7 with as little
downtime as possible (I personally am shooting for 99.99% uptime, but
I've only told management we can do 97-99%:) due to regulatory  snd
disclosure issues.

Due to budget restraints (and the fact that I'm sick of every system
here being a proprietary, closed source system that I can't even
configure without the vendor holding my hand because they refuse to
document anything) I've decided to implement the system using Linux
and mySQL. For the most part, the design is looking good... We'll be
replicating the statements database among several slaves, and there
are several front-end machines serving up the pdfs. I think I've
eliminated almost all the single points of failure I feasibly can...
except for the database master. It's important that I can eliminate
this as a point of failure, because for auditing purposes every
access must be logged, and to make it easier to produce activity
reports and the like, I'd like to store it in the database.
Unfortunately, this means there has to be a write every time a member
or staff look at a statement.

I've been playing with some ideas on how to have the slaves arbitrate
amongst themselves and take over as master in case the master does go
down. I've also heard that automated failover is supposed to be in
4.x at some point as well. I was wondering if anyone else had any
example scripts/code/software, etc to do this that they'd be willing
to share. Or should I wait for it to get into 4.x (my launch deadline
is 6/30/02)?

Sorry about the long-winded post, but any help would be greatly
appreciated.

*******************************

Gregory M. Symons
Systems Analyst
Research Federal Credit Union
[EMAIL PROTECTED]
1-800-967-7929, ext 1234

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