Dataflow V1beta3 API - Module Google::Cloud::Dataflow::V1beta3::StreamingMode (v0.13.0)

Reference documentation and code samples for the Dataflow V1beta3 API module Google::Cloud::Dataflow::V1beta3::StreamingMode.

Specifies the Streaming Engine message processing guarantees. Reduces cost and latency but might result in duplicate messages written to storage. Designed to run simple mapping streaming ETL jobs at the lowest cost. For example, Change Data Capture (CDC) to BigQuery is a canonical use case. For more information, see Set the pipeline streaming mode.

Constants

STREAMING_MODE_UNSPECIFIED

value: 0
Run in the default mode.

STREAMING_MODE_EXACTLY_ONCE

value: 1
In this mode, message deduplication is performed against persistent state to make sure each message is processed and committed to storage exactly once.

STREAMING_MODE_AT_LEAST_ONCE

value: 2
Message deduplication is not performed. Messages might be processed multiple times, and the results are applied multiple times. Note: Setting this value also enables Streaming Engine and Streaming Engine resource-based billing.