Hello folks,
*What:*
We'd like to schedule a maintenance window for all the stat machines:
stat1004.eqiad.wmnet
stat1005.eqiad.wmnet
stat1006.eqiad.wmnet
stat1007.eqiad.wmnet
stat1008.eqiad.wmnet
*In this maintenance window, we will:*
* Upgrade the conda-analytics debian package. This package is how we deploy
Spark3. The upgrade will allow us to run JupyterHub and JupyterLab on top
of it.
* Deploy new puppet configurations that will switch from running Jupyter on
top of anaconda-wmf to running on top of conda-analytics.
* This effectively upgrades our Jupyter deployment as follows:
* Upgrades JupyterHub from 1.1.0 to 1.5.0.
* Upgrades JupyterLab from 3.2.9 to 3.4.8.
* Upgrades Spark on newly created conda environments from 2.4.4 to
3.1.2.
* Upgrades wmfdata on newly created conda environments to 2.0.0. This
version of wmfdata includes breaking changes.
*IMPORTANT*: After this maintenance window, you should expect the following:
*** JupyterHub and any existing JupyterLab processes including any running
kernels, will be shut down, and will have to be restarted manually by the
respective owners. ***
*** JupyterLab UI will have minor changes. ***
*** New conda environments created via JupyterHub will now be based off of
conda-analytics and will utilize Spark3. ***
*** Existing conda environments based off of anaconda-wmf will continue to
work, and continue to utilize Spark2. ***
*Why: *
As part of our effort to deprecate Spark2 and make Spark3 widely available,
we are deprecating the use of anaconda-wmf and Spark2, in favor of
conda-analytics and Spark3.
Note this is just deprecation, you will still be able to use your existing
conda environments running on top of anaconda-wmf and Spark2.
*When:*
We are proposing the following window for these changes:
Wednesday 30 Nov 2022 12:30 to 13:30 UTC.
(7:30 AM ET / 4:30 AM PT)
*More info:*
Spark3 upgrade:
https://wikitech.wikimedia.org/wiki/Analytics/Systems/Cluster/Spark/Migrati…
The old anaconda-wmf base conda environment:
https://wikitech.wikimedia.org/wiki/Analytics/Systems/Conda
The new conda-analytics base conda environment:
https://wikitech.wikimedia.org/wiki/Analytics/Systems/conda-analytics
wmfdata changes:
https://github.com/wikimedia/wmfdata-python/blob/main/CHANGELOG.md
Please let us know if you have any questions or objections.
--
Xabriel J. Collazo Mojica (he/him, pronunciation
<https://commons.wikimedia.org/wiki/File:Xabriel_Collazo_Mojica_-_pronunciation.ogg>
)
Sr Software Engineer
Wikimedia Foundation