Sean Whitton:
Yeah, the new thing looks cool. The thing I am missing
is that with
the sql-* aliases we have more aliases than servers, which seems kinda
pointless.
this is because these sets are decided by the database layout at
Wikimedia's cluster, not us. Wikimedia has three separate master/slave
groups, s1, s2, and s3 (there's also s2a and s3a, but those don't matter
to us).
we don't need that much capacity, so s1 and s3 are both on yarrow. but,
if you use sql-s1 and sql-s3 properly, your code will still work if we
add a third server in future.
- river.