https://speakerdeck.com/diracdiego/20180215-mlkitchen7-yoheikikuta
20180215_MLKitchen7_YoheiKIKUTA - Speaker Deck
Talk at https://cookpad.connpass.com/event/77344/
speakerdeck
https://lists.wikimedia.org/hyperkitty/list/discovery-alerts@lists.wikimedia.org/thread/NZQP5YHCSPOYYKLSCKVZ34KT52WOGBUR/
Airflow alert: TaskInstance: mjolnir_weekly.train-idwiki-dbn-20180215-query_explorer-pruned_mrmr...