Sorry for late question. I guess we should deprecate wfWaitForSlaves() and
probably some other methods that still use this logic

Best

On Tue, Sep 6, 2016 at 11:22 AM Aaron Schulz <aschulz4...@gmail.com> wrote:

> As of 950cf6016c, the mediawiki/core repo was updated to use DB_REPLICA
> instead of DB_SLAVE, with the old constant left as an alias. This is part
> of a string of commits that cleaned up the mixed use of "replica" and
> "slave" by sticking to the former. Extensions have not been mass
> converted. Please use the new constant in any new code.
>
> The word "replica" is a bit more indicative of a broader range of DB
> setups*, is used by a range of large companies**, and is more neutral in
> connotations.
>
> Drupal and Django made similar updates (even replacing the word "master"):
> * https://www.drupal.org/node/2275877
> * https://github.com/django/django/pull/2692/files &
>
> https://github.com/django/django/commit/beec05686ccc3bee8461f9a5a02c607a02352ae1
>
> I don't plan on doing anything to DB_MASTER, since it seems fine by itself,
> like "master copy", "master tape" or "master key". This is analogous to a
> master RDBMs database. Even multi-master RDBMs systems tend to have a
> stronger consistency than classic RDBMs slave servers, and present
> themselves as one logical "master" or "authoritative" copy. Even in it's
> personified form, a "master" database can readily be thought of as
> analogous to "controller",  "governer", "ruler", lead "officer", or such.**
>
> * clusters using two-phase commit, galera using certification-based
> replication, multi-master circular replication, ect...
> **
>
> https://en.wikipedia.org/wiki/Master/slave_(technology)#Appropriateness_of_usage
> ***
>
> http://www.merriam-webster.com/dictionary/master?utm_campaign=sd&utm_medium=serp&utm_source=jsonld
>
> --
> -Aaron
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