[Engineering] Analytics Hadoop cluster full shutdown scheduled for Sept 25th

Tue Sep 25 11:59:23 UTC 2018

Hi everybody,

maintenance just completed, it took a bit more but no issue registered so
far. We weren't able to swap analytics1003 (where Oozie/Hive/etc..) in this
maintenance window, so I'll likely send another email next week to schedule
downtime (not for the entire cluster but mostly for Hive/Oozie only),
please don't hate me :)

If you see any issue please contact us (via
https://phabricator.wikimedia.org/T203635 or IRC Freenode
#wikimedia-analytics).

Thanks!

Luca

Il giorno lun 24 set 2018 alle ore 16:50 Luca Toscano <
ltoscano at wikimedia.org> ha scritto:

> Hi everybody,
>
> this is a reminder that the maintenance will happen tomorrow (Tue 25th, 10
> CEST).
>
> Luca
>
> Il giorno ven 14 set 2018 alle ore 12:13 Luca Toscano <
> ltoscano at wikimedia.org> ha scritto:
>
>> Hi everybody,
>>
>> the Analytics team needs to replace the Hadoop master node hosts
>> (analytics100[1,2]) and the Hive/Oozie host (analytics1003) as part of
>> regular hardware refresh (hosts getting out of warranty). In order to do
>> things safely we decided to proceed with a full cluster shutdown on Sept
>> 25th at 10 AM CEST. The maintenance should last a couple of hours and all
>> there shouldn't be any noticeable change for the Hadoop users.
>>
>> This means that during the maintenance:
>> - HDFS will not be available
>> - Yarn will not be available
>> - Hive/Spark (cluster mode)/Oozie/etc.. will not be available
>>
>> Please let us know if this impacts your work in
>> https://phabricator.wikimedia.org/T203635 or on the #wikimedia-analytics
>> Freenode IRC channel.
>>
>> Thanks a lot!
>>
>> Luca
>>
>
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