looking for Cyrus mail format documentation

[John Alton Tamplin]

Patrick Welche wrote:

>All this sounds remarkably similar to the postgres-r database replication
>problem cf nice paper by Bettina Kemme
>  http://www.cs.mcgill.ca/~kemme/papers/vldb00.html
>
>Here it would be client connects to imap server A and says "APPEND". Server A
>then sends "APPEND" to server A and server B using a group communciation
>protocol (cf spread) which guarantees the ordering of the commands. Server A
>and server B then receive the APPEND and do it. If server B received an APPEND
>at nearly the same time, that APPEND would still appear in the same place in
>the input queue of both servers => the UID would come out the same. You still
>have the hard problem of conflict resolution after network partitioning :(
>  
>
The issue is not when the two servers can talk -- that is easily solved 
with techniques such as two phase commit.  The problem is when server A 
and B are not able to communicate and you want both of them to be able 
to continue taking updates yet build a consistent view of the database 
once they can communicate.

-- 
John A. Tamplin                               Unix System Administrator
Emory University, School of Public Health     +1 404/727-9931