[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 

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 
  - 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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