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@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@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