apache/beam

DirectRunner unnecessarily re-scheules tasks after exceptions

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#18.141 aperta il 3 giu 2022

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Descrizione

Seems like DirectRunner keeps scheduling tasks when exceptions occur when reading BigQuery results (and possibly in other cases).

I verified that rescheduling is not coming from BigQuery. AFAIKT a _MonitorTask that gets added at following location does not get removed properly when an exception is thrown. https://github.com/apache/beam/blob/master/sdks/python/apache_beam/runners/direct/executor.py#L361

To reproduce: (1) Raise a 'ValueError' at the beginning of method BigQueryWrapper.convert_row_to_dict at following location. https://github.com/apache/beam/blob/master/sdks/python/apache_beam/io/bigquery.py#L1061 (2) Setup Python SDK and run bigquery_tornadoes with DirectRunner. python -m apache_beam.examples.cookbook.bigquery_tornadoes --output <table> --project <project>

Imported from Jira BEAM-1462. Original Jira may contain additional context. Reported by: chamikara.

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