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

Mon Sep 24 14:50:12 UTC 2018

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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