[CentOS-devel] Planned service outage : Stream 9 koji build infra

Tue Sep 20 06:30:14 UTC 2022
Fabian Arrotin <arrfab at centos.org>

Due to an underlying storage migration (migrating from local NFS host to 
centralized Netapp filer), we'll have to freeze the dedicated CentOS 
Stream koji infrastructure (externally known as 
https://kojihub.stream.centos.org)

At the same time we'll migrate the lookaside cache server (aka 
https://sources.stream.centos.org), from local iscsi target volume to 
new iscsi lun served also from new Netapp filer.

Impacted services:
  - kojihub and builders for CentOS Stream 
(https://kojihub.stream.centos.org)
  - lookaside cache server (https://sources.stream.centos.org)

That also means that external services pointing to kojihub (like for 
cbs.centos.org for SIGs/tag using directly upstream koji as 
buildroot[s]) will be impacted , so take that into account.

Migration is scheduled for """"Friday September 30th, 11:00 am UTC time"""".
You can convert to local time with $(date -d '2022-09-30 11:00 UTC')

The expected "downtime" is estimated to (maximum) 4h , time needed to :
- freeze koji infra and builders
- freeze lookaside cache server
- (final) data sync between old and new storage volumes
- storage volume swap
- validate service[s] and have these available again

You can also join us in either #centos-devel or #centos-stream irc 
channels on irc.libera.chat if you encounter any issue.


Thanks for your understanding and patience.

on behalf of the CentOS Stream Infra team,
-- 
Fabian Arrotin
The CentOS Project | https://www.centos.org
gpg key: 17F3B7A1 | twitter: @arrfab
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