Community Relations support needed for a read-only window for s1 (enwiki)
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	Marostegui
	Oct 7 2019, 9:17 AM

Description

What is the problem?

We need to failover the current s1 database primary master, to a newer host (T234800)
Technical tracking task for this maintenance: T234800
For this operation we need to set up the following wiki on read-only:

enwiki

How can we help you?

We need to let users of the above wiki, that on Thu 14th November from 05:00 to 05:30 AM UTC that wiki will be on read-only. No writes will be allowed, reads will remain unaffected.

What does success look like?

Users will get notified and plan their work to avoid that maintenance window.
If everything goes fine, we expect the read-only window to last around 1-2 minutes, not 30.

What is your deadline?

We'd like to do this switchover by Thu 14th Nov at 06:00 AM UTC

Details

Due Date: Nov 14 2019, 4:00 AM

Related Objects
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Status	Assigned	Task
Resolved	Cenarium	T89553 Recent changes patrolling limited to tagged changes
Declined	None	T91425 ProblemChanges should only filter for tags indicating a 'problem'
Open	None	T134440 Add configuration settings for tags to allow more complex use cases (tracking)
Open	None	T95319 Add 'problem' status for tags
Resolved	Cenarium	T73236 Automatically tag edits that make a redirect, or convert a redirected page to a normal page, or move a page across namespaces, etc.
Resolved	None	T105189 [Bug] Wikidata action=query&list=tags should not take 15-25 seconds to respond
Resolved	Ladsgroup	T91535 Performance issues with tags
Resolved	Ladsgroup	T185355 Normalize change tag schema
Resolved	Ladsgroup	T194163 Drop change_tag.ct_tag column
Resolved	Marostegui	T210713 Drop change_tag.ct_tag column in production
Resolved	Marostegui	T217396 Decommission db1061-db1073
Resolved	Marostegui	T234800 Switchover s1 primary database master db1067 -> db1083 - 14th Nov 06:00 - 06:30 UTC
Resolved	Trizek-WMF	T235531 Community Relations support needed for read-only windows on Q2-2019
Resolved	Trizek-WMF	T234801 Community Relations support needed for a read-only window for s1 (enwiki)

Event Timeline

Marostegui created this task.Oct 7 2019, 9:17 AM

I'll take care of it when T234303: Community Relations support needed a several read-only window for s5 will be over.

English Wikipedia takes care of their own banners. I pinged them.

FOr now, the community is in favor to not display a banner. I let them decide.

I'll ping the village pump a few days before the maintenance window.

@Trizek-WMF I suggest including this activity in the preceding https://meta.wikimedia.org/wiki/Tech/News ; while it is "only" impacting one project , I've seen that often other projects build dependencies on enwiki components.

In T234801#5563101, @Xaosflux wrote:

@Trizek-WMF I suggest including this activity in the preceding https://meta.wikimedia.org/wiki/Tech/News ; while it is "only" impacting one project , I've seen that often other projects build dependencies on enwiki components.

I don't think it is eligible for Tech News.

... because Tech News is not for announcements that cover just one wiki (even if that wiki happens to be the biggest).
Even if the disruption is short, this is the most effective way to tell everyone at your wiki about it.
If you really don't want the banner, then at least tell WP:VPT so that your peers can handle better the inevitable complaints about the lack of a proper notice :)

Oh certainly post it at https://en.wikipedia.org/wiki/Wikipedia:Village_pump_(technical) please

In T234801#5563947, @Xaosflux wrote:

Oh certainly post it at https://en.wikipedia.org/wiki/Wikipedia:Village_pump_(technical) please

Done at https://en.wikipedia.org/w/index.php?title=Wikipedia:Village_pump_(technical)&diff=920623524&oldid=920622453.

Trizek-WMF added a parent task: T235531: Community Relations support needed for read-only windows on Q2-2019.Oct 15 2019, 3:48 PM

Trizek-WMF set Due Date to Nov 14 2019, 4:00 AM.Oct 30 2019, 3:35 PM

Oh, I commented on T234800#5647083, probably on the wrong ticket, but just in case, a reminder this is one week away.

I just realised that when we created this task and scheduled the maintenance I didn't take into account that we'd have had the change from CEST to CET, so I am going to update the task to reflect that this will happen at 06:00 AM UTC instead of 05:00 AM UTC.
Sorry for the confusion.

Marostegui updated the task description. (Show Details)Nov 12 2019, 7:26 AM

I left a reminder on the village pump.