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“Warming Up” Databricks Clusters

Ust Oldfield needs that cluster to be up:

Interactive and SQL Warehouse (formerly known as SQL Endpoint) clusters take time to become active. This can range from around 5 mins through to almost 10 mins. For some workloads and users, this waiting time can be frustrating if not unacceptable.
For this use case, we had streaming clusters that needed to be available for when streams started at 07:00 and to be turned off when streams stopped being sent at 21:00. Similarly, there was also need from business users for their SQL Warehouse clusters to be available for when business started trading so that their BI reports didn’t timeout waiting for the clusters to start.

Read on to see one way to solve this problem without having a cluster run 24/7.

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