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 Replication with 3 Servers Question

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Posted - 2001-01-31 : 21:27:22
Jay Natarajan writes "Hi:

What have a project that will consist of 3 production servers in 3 different
regions and each server has it`s own clients in that region. We want to use
replication to keep them all in synch so that if one goes down, the client
PC`s would just re-connect to one of the other two remaining servers and
keep working.

1. I am wondering what type of replication to use?
2. I was leaning towards merge, but was wondering how to use it to keep 3
servers in synch? If I use the Central publisher with updating subscribers
scenario, I foresee a potential problem as follows:

A. Server1 is central publisher
B. Server2 and Server3 are updating subscribers
C. Server2 (or Server3) goes down, clients reconnect to Server1 and
keep working.
D. When Server2 (or Server3) is back up, Server1 will push all
changes back to Server2.

but,
E. Server1 goes down, clients reconnect to either Server2 or
Server3 and keep working.
F. Since Server1 is down, changes made to Server2 not replicated
back to Server3 (The central publisher is gone) until Server1 comes back up.
G. Server2 goes down while Server1 is down, clients re-connect to
Server3.
H. The changes made to Server2 were not replicated to Server3
because the central publisher is missing.
I. Server3 therefore is missing data changes.

Please help me figure this out. I feel as if I am missing something that I
could do to also keep Server2 and Server3 in synch with each other besides
the Central Publisher.

Thanks in advance

Jay Natarajan"
   

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