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This section describes the transaction behavior of the GCP BigQuery agent. For more information about general transactions, see, Transactions, in /wiki/spaces/MZD73/pages/56050833.1.11 Workflow Monitor.

The GCP BigQuery batch forwarding agent uses the streaming insert API that is designed to ensure that data can be loaded at extremely high volumes and also that loaded data is available to queries in real-time. As part of the implementation that does both of these things, newly inserted data is added to a streaming buffer where it is immediately available for queries. However, this data is not moved into standard storage until more than an hour after being loaded. While the data is in the streaming buffer, it can only be queried. It cannot be updated, deleted, or copied. You will need to refer to the GCP documentation for further information on the streaming insert API and the streaming buffer.

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The agent emits commands that changes the state of the file currently processed.

Command

Description

Cancel Batch

Emitted if any error occurs during insertion of rows into Data table or error when mapping the UDR to rows.

Retrieves

The agent retrieves commands from other agents and based on them generates a state change of the file currently processed.

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