All,
The upgrade to MySQL (Percona) 5.7 on the mysql1-vip cluster has been
completed successfully! We had a few minutes of downtime to fail-over
the cluster around 12:33 PDT.
Please reach out if you run into any issues. Expect information on
additional maintenance in the near future.
Thanks!
On 5/27/22 10:43 AM, Ethan Hampton wrote:
All,
We will be upgrading one of our MySQL clusters (mysql1-vip
(mysql1/mysql2)) Monday, June 6th, 2022 between 17:00-20:00 UTC
(10am-1pm PDT).
Just prior to the upgrade (9am PDT), we will be running a backup of
the cluster. We have tested that the backup can be completed without a
read lock on the cluster. We have several contingencies in place to
allow continued use during the backup. As a result, we expect no
downtime from this backup operation.
We are upgrading MySQL (Percona) from 5.6 to 5.7. This is the next
step towards managing the cluster under Chef and upgrading to a modern
OS version. Expect more maintenance on this cluster in the near future.
This will result in up to 20 minutes of downtime in the middle of the
window as we fail-over the cluster. We estimate that the actual
downtime will be far less than that bound.
MySQL 5.7 increases the 'strictness' of the default `sql_mode` used.
We will keep the configuration used by MySQL 5.6 during this upgrade,
however we plan to migrate to the default MySQL 5.7 setting at a
future date.
*If you are using the vip1 cluster, please make sure you are using the
mysql1-vip.osuosl.org address instead of mysql1/2.osuosl.org directly
or additional outages will occur.*
We have tested this upgrade in a separate environment and believe that
it will have minimal impact to projects on the cluster. If you have
any questions or concerns, please let us know. We'll be in #osuosl on
Libera Chat during the upgrade in case any one needs to contact us
directly.
Thanks!
--
Ethan Hampton
Student Systems Engineer
Oregon State University | Open Source Lab
--
Ethan Hampton
Student Systems Engineer
Oregon State University | Open Source Lab
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