[Engineering] Upcoming reboots of stat100[234] and most of the Analytics hosts (Kafka and Hadoop)

Thu Oct 20 10:18:20 UTC 2016

Hi everybody,

due to a severe kernel vulnerability (
https://access.redhat.com/security/vulnerabilities/2706661) I need to
reboot the stat1002, stat1003 and stat1004 hosts to install the new kernel.
The reboots are scheduled for 9 AM CEST tomorrow (Oct 21st), please follow
up with me or anybody in the Analytics team if you have ongoing work that
can't be stopped.

The Analytics Hadoop and Kafka clusters will be rebooted too during the
next hours. Event if this maintenance shouldn't cause any major issue, you
might experience some service degradation. More up to date information on
IRC in the analytics and operations channels.

Thanks and apologies in advance for the trouble!

Luca
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