The current s6 master, db1061 is old and needs to be decommissioned.
We are going to switchover db1061 to db1131 on Tue 19th Nov from 06:00 to 06:30
Read only is required, and the following wikis will not allow writes during this maintenance window:
frwiki jawiki ruwiki
| Subject | Repo | Branch | Lines +/- | |
|---|---|---|---|---|
| wmnet: Update s6-master CNAME | operations/dns | master | +1 -1 | |
| mariadb: Promote db1131 to s6 master | operations/puppet | production | +3 -4 |
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | Marostegui | T217396 Decommission db1061-db1073 | |||
| Resolved | Marostegui | T235469 Switchover s6 primary database master db1061 -> db1131 - 19th Nov 06:00 - 06:30 UTC | |||
| Resolved | Trizek-WMF | T235475 Community Relations support needed for a read-only window for s6 (frwiki, jawiki, ruwiki) |
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.
Change 551040 had a related patch set uploaded (by Marostegui; owner: Marostegui):
[operations/puppet@production] mariadb: Promote db1131 to s6 master
Change 551041 had a related patch set uploaded (by Marostegui; owner: Marostegui):
[operations/dns@master] wmnet: Update s6-master CNAME
Mentioned in SAL (#wikimedia-operations) [2019-11-19T05:02:13Z] <marostegui> Start pre-switchover steps T235469
Mentioned in SAL (#wikimedia-operations) [2019-11-19T05:07:49Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Set db1131 with weight 0 T235469 ', diff saved to https://phabricator.wikimedia.org/P9661 and previous config saved to /var/cache/conftool/dbconfig/20191119-050748-marostegui.json
Change 551040 merged by Marostegui:
[operations/puppet@production] mariadb: Promote db1131 to s6 master
Mentioned in SAL (#wikimedia-operations) [2019-11-19T06:01:03Z] <marostegui> Starting s6 failover from db1061 to db1131 - T235469
Mentioned in SAL (#wikimedia-operations) [2019-11-19T06:01:23Z] <marostegui@cumin2001> dbctl commit (dc=all): 'Set s6 as read-only for maintenance T235469', diff saved to https://phabricator.wikimedia.org/P9666 and previous config saved to /var/cache/conftool/dbconfig/20191119-060122-marostegui.json
Mentioned in SAL (#wikimedia-operations) [2019-11-19T06:02:04Z] <marostegui@cumin2001> dbctl commit (dc=all): 'Promote db1131 to s6 master and remove read-only from s6 T235469', diff saved to https://phabricator.wikimedia.org/P9667 and previous config saved to /var/cache/conftool/dbconfig/20191119-060203-marostegui.json
Change 551041 merged by Marostegui:
[operations/dns@master] wmnet: Update s6-master CNAME
This was done successfully.
Read only starts: 06:01:23Read only stops: 06:02:04
Total read only time: 41 seconds