The user-facing portion of this should be complete now. 


> On Jul 1, 2021, at 9:07 AM, Brooke Storm <[email protected]> wrote:
> 
> This is starting.
> 
> Brooke Storm
> Staff SRE
> Wikimedia Cloud Services
> [email protected] <mailto:[email protected]>
> 
> 
> 
>> On Jun 30, 2021, at 9:34 AM, Brooke Storm <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> The NFS servers used for scratch and maps mounts (/data/project and /home in 
>> the maps project and /data/scratch in other projects) will be going offline 
>> for a short time tomorrow 2021-07-01 at around 1600 UTC to move the mounts 
>> to DRBD synced volumes.  The current setup causes odd issues during failover 
>> including data loss and stale files left behind. The process taking place is 
>> one of those failovers so there may be some files that were previously 
>> deleted that need deleting again present and similar anomalies. 
>> 
>> I plan to reboot the maps project servers to make sure they have their 
>> mounts and processes restored as best as possible. The scratch mounts should 
>> be less impactful. If you use scratch, just be aware that it will go offline 
>> for a bit and will be back with some possible quirks.  After that, the data 
>> should become far more stable and properly synced between the two systems. 
>> The process could start later than 1600 UTC if there are sync issues 
>> initially as I try to get as much of the data as possible transferred.
>> 
>> More details here https://phabricator.wikimedia.org/T224747 
>> <https://phabricator.wikimedia.org/T224747> 
>> 
>> 
>> Brooke Storm
>> Staff SRE
>> Wikimedia Cloud Services
>> [email protected] <mailto:[email protected]>
>> 
>> 
>> 
> 

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