Hi,
just a quick heads up that (as discussed with Diederik) Kraken received its gerrit repository at
https://gerrit.wikimedia.org/r/#/admin/projects/analytics/kraken
We'll keep the old github Kraken repository around at https://github.com/wikimedia/kraken and will start to replicate changes from gerrit to github.
If you used to push to github, please upload to the new gerrit repository directly instead.
Have fun and best regards, Christian