Dataflow is the hosted version of Apache Beam, which is OSS. http://beam.incubator.apache.org/ http://beam.incubator.apache.org/ BigTable is compatible with Ap

Dataflow is the hosted version of Apache Beam, which is OSS. http://beam.incubator.apache.org/ http://beam.incubator.apache.org/ BigTable is compatible with Apache HBase API, so it's trivial to swap out. https://cloud.google.com/bigtable/docs/bigtable-and-hbase https://cloud.google.com/bigtable/docs/bigtable-and-hbase Even BigQuery now has a standard SQL interface, although it's still Beta: https://cloud.google.com/bigquery/sql-reference/ https://cloud.google.com/bigquery/sql-reference/ Working at Google Cloud myself, I find the company philosophy to be to provide standard interfaces to superior implementations. This keeps us honest, because if the door to leave is open, then you have to actually want to stay. (Standard disclaimer: my opinion, not the company's.)