Let me join in with a late appreciation of all the work that Analytics has
done making this migration happen.
As probably the heaviest users of the MediaWiki replicas, we in the Product
Analytics team were a bit worried when we heard the initial plan and had
lot of requests for how to make the new infrastructure usable. Analytics
listened to us in meeting after meeting and in long Phab conversations and
worked *hard *to come up with creative, feasible solutions for our
challenges, even as dbstore1002 slowly failed under them.
In particular, Luca did amazing work during this process: tracking all five
of us analysts down during the mayhem of all hands to see how we worked
with dbstore1002, coming up with smart hacks with SRV records and
command-line clients to make it easier for us to work across the multiple
replacement hosts, exhaustively documenting the new setup
<https://wikitech.wikimedia.org/w/index.php?title=Analytics/Data_access#MariaDB_replicas>,
and more.
Thank you so much to all of you for providing the infrastructure that
literally makes our jobs possible! 🎉
On Fri, 22 Feb 2019 at 21:52, Aaron Halfaker <ahalfaker(a)wikimedia.org>
wrote:
+1 to everything Leila said. This is very difficult
work and I'm amazed
to see it happen so smoothly -- at least from my point of view :)
On Fri, Feb 22, 2019 at 10:07 AM Leila Zia <leila(a)wikimedia.org> wrote:
On Fri, Feb 22, 2019 at 2:45 AM Luca Toscano
<ltoscano(a)wikimedia.org>
wrote:
the Analytics team has been working with the SRE Data Persistence team
during the
last months to replace dbstore1002 with three brand new nodes,
dbstore100[3-5]. We are moving from a single mysql instance (multi-source)
to a multi-instance environment.
This has been an incredible amount of work, both in socializing the
idea and also implementation and making sure workflows don't break as
much as possible. Thank you to all of you who worked on this over the
past months and to those of you who maintained the single mysql
instance for all the past years. I hope that the maintenance workflows
become easier for those of you who continue to maintain these systems
for us.
Thank you! :)
Best,
Leila
_______________________________________________
Wiki-research-l mailing list
Wiki-research-l(a)lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wiki-research-l
--
Aaron Halfaker
Principal Research Scientist
Head of the Scoring Platform team
Wikimedia Foundation