Yes, we can do it Wednesday. 

On Wed, Mar 22, 2017 at 3:44 PM, Tilman Bayer <tbayer@wikimedia.org> wrote:

Hi Nuria,

as part of the Reading team's offsite meeting next week we already have a session scheduled for that day which will involve various people running EventLogging queries. Could we move the outage once more, to Wednesday or later? Many thanks!

On Tue, Mar 21, 2017 at 3:22 PM, Nuria Ruiz <nuria@wikimedia.org> wrote:

Ok, next week it is.  Let's plan for this to happen on Tuesday, March 28th.

On Tue, Mar 21, 2017 at 1:22 PM, Mikhail Popov <mpopov@wikimedia.org> wrote:

Hiya! Also! We're turning off an A/B test this Thursday afternoon and it would make our lives easier for this renaming thing to happen next week :) please and thank you.

- Mikhail

Imagine a world in which every single human being can freely share in the sum of all knowledge. That's our commitment. Donate.

On Tue, Mar 21, 2017 at 10:57 AM, Nuria Ruiz <nuria@wikimedia.org> wrote:

Team:

We need to do some maintenance work to the evenlogging database that requires renaming  and archiving of all tables that are currently receiving events.

Tables will be renamed from, for example: WikipediaZeroUsage_14574251 to WikipediaZeroUsage_14574251_15423246; 

15423246 is the capsule schema version. 

As new events are come for 'WikipediaZeroUsage' schema with schema version 14574251 the table WikipediaZeroUsage_14574251 will get recreated again, the only difference is that this new table will have different column length for varchar fields. 

Details of this change are here: https://phabricator.wikimedia.org/T160454

We will start our maintenance event on Thursday morning  around 11 am PST time and it would last couple hours, no data loss on eventlogging will happen as part of this event.

Reportupdater queries that use eventlogging would need to be updated to select from the newly renamed tables (and we will take care of doing that) but other than those we do not think there are any other automated scripts that would need updating.  Please let us know otherwise. 

Also, please be so kind to let us know if this renaming is disruptive in any way. We can also do this changes at a later time next week. 

Thanks,

Nuria

_______________________________________________
Analytics mailing list
Analytics@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/analytics

_______________________________________________
Analytics mailing list
Analytics@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/analytics

_______________________________________________
Analytics mailing list
Analytics@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/analytics

--

Tilman Bayer
Senior Analyst
Wikimedia Foundation
IRC (Freenode): HaeB

_______________________________________________
Analytics mailing list
Analytics@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/analytics