[Toolserver-announce] s3/s4/s6/s7 server split - action required for user databases

River Tarnell river.tarnell at wikimedia.de
Wed Jun 22 12:13:37 UTC 2011


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Hi,

This mail affects you if you have user databases on s3, s4, s6 or s7.  
Other users can ignore it.

Currently, these clusters are all on the same server.   During the 
re-import, I will do an internal server split, i.e. each cluster will be 
on a different MySQL server afterwards.  We will then move user 
databases to the new servers, and do the same thing on the other server.

This presents a problem when restoring user databases, because it's not 
clear which cluster(s) the user intended each database to exist on.
That problem will be resolved as follows: User databases which contain a 
wiki name or a cluster name in the database name will be restored to 
that cluster.  All other databases will be restored to s3.

If you don't agree with this algorithm, you should list your database 
name under the appropriate cluster at [0] and it will be restored to the 
server you request.  You can list one database under multiple servers, 
if you want (but please consider disk space requirements before doing 
that).

	- river.

[0] <https://wiki.toolserver.org/view/User:River/hyacinth_db_split> 
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