[Engineering] DEPRECATION WARNING: dbstore1002 is going to be decommissioned on March 4th

Fri Feb 22 10:45:19 UTC 2019

Hi everybody,

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.

For more info please check:
* T210478 and related subtasks.
* https://wikitech.wikimedia.org/wiki/Analytics/Data_access#MariaDB_replicas

We are planning to decommission the dbstore1002 host (namely stopping mysql
and shutting down the server) on Monday March 4th (EU morning). We have
recently been following up with a lot of users to help them migrate to the
new environment, so we are reasonably sure that this move should not
heavily impact anybody, but if we have left some use case aside please let
us know in https://phabricator.wikimedia.org/T215589. If we don't hear
anything before the March 4th deadline we'll proceed with the host
decommission maintenance.

Luca (on behalf of the Analytics team)
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