Update: I don’t think it is going to be done in 10 minutes. I’m surprised, but 
the process is still running. I still believe it will complete today.

> On Nov 11, 2020, at 8:31 AM, Brooke Storm <[email protected]> wrote:
> 
> Update:
> ToolsDB remains in read-only mode while the data loads on the replica in 
> order to minimize the possibility that this won’t work.  All steps have been 
> successful so far, but the size and heterogeneity of this database service 
> has made every step take large amounts of time for the system to complete. 
> The last setup step is running now and should complete during my day today 
> (US MST). Based on how long this took yesterday to export the data, my 
> worst-case scenario estimate for restoring services is at around 22:30 UTC 
> today.
> 
> We are tracking work at  https://phabricator.wikimedia.org/T266587 
> <https://phabricator.wikimedia.org/T266587>
> 
>> On Nov 10, 2020, at 8:51 AM, Brooke Storm <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> This will be happening in around 10 minutes. ToolsDB will be read-only until 
>> we can get a consistent dump to rebuild replication.
>> 
>> Brooke Storm
>> Staff SRE
>> Wikimedia Cloud Services
>> [email protected] <mailto:[email protected]>
>> IRC: bstorm
>> 
>>> On Nov 6, 2020, at 12:12 PM, Brooke Storm <[email protected] 
>>> <mailto:[email protected]>> wrote:
>>> 
>>> The ToolsDB service suffered a breakage in replication on 2020-10-27. WMCS 
>>> has tried to restore replication of data, but that has been unsuccessful so 
>>> far including doing a dump to rebuild replication without downtime.
>>> At this point, we have a new server waiting to become the replica, but to 
>>> start the replication process, we need to set the database to read-only for 
>>> a full dump. This could easily take more than an hour. During that entire 
>>> time, the database will be read-only.
>>> 
>>> We will begin at 1600 UTC and finish when it is done. The database is quite 
>>> large, but, with it in read-only mode, I hope the backup will not take 
>>> terribly long.
>>> 
>>> Please see https://phabricator.wikimedia.org/T266587 
>>> <https://phabricator.wikimedia.org/T266587> for additional information.
>>> 
>>> Brooke Storm
>>> Staff SRE
>>> Wikimedia Cloud Services
>>> [email protected] <mailto:[email protected]>
>>> IRC: bstorm
>>> 
>> 
> 

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