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The transaction behavior for the HDFS forwarding agent is presented here. For more information about general
transaction behavior please refer to the section Transactions in Workflow Monitor[hide]3.0[/hide].
Emits
The agent does not emit anything.
Retrieves
The agent retrieves commands from other agents and based on them generates a state change of the file currently processed.
Command | Description |
|---|
Begin Batch | When a Begin Batch message is received, the temporary directory DR_TMP_DIR is first created in the target directory, if not already created. Then a target file is created and opened in the temporary directory. |
End Batch | When an End Batch message is received, the target file in DR_TMP_DIR is first closed and then the Command, if specified in After Treatment, is executed. Finally, the file is moved from the temporary directory to the target directory. |
Cancel Batch | If a Cancel Batch message is received, the target file is removed from the DR_TMP_DIR directory. |
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