pabloem commented on a change in pull request #15242:
URL: https://github.com/apache/beam/pull/15242#discussion_r682967218
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File path: sdks/python/apache_beam/io/fileio.py
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@@ -804,16 +803,17 @@ def finish_bundle(self):
class _RemoveDuplicates(beam.DoFn):
- FILES_STATE = BagStateSpec('files', StrUtf8Coder())
+ COUNT_STATE = CombiningValueStateSpec('count', combine_fn=sum)
+
+ def process(self, element, count_state=beam.DoFn.StateParam(COUNT_STATE)):
- def process(self, element, file_state=beam.DoFn.StateParam(FILES_STATE)):
path = element[0]
file_metadata = element[1]
- bag_content = [x for x in file_state.read()]
+ counter = count_state.read()
- if not bag_content:
- file_state.add(path)
+ if counter == 0:
+ count_state.add(1)
_LOGGER.debug('Generated entry for file %s', path)
yield file_metadata
else:
- _LOGGER.debug('File %s was already read', path)
+ _LOGGER.debug("File %s was already read", path)
Review comment:
Maybe log the number of times it's been seen before?
LGTM otherwise.
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