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ASF GitHub Bot logged work on BEAM-8802: ---------------------------------------- Author: ASF GitHub Bot Created on: 22/Nov/19 19:10 Start Date: 22/Nov/19 19:10 Worklog Time Spent: 10m Work Description: robertwb commented on pull request #10191: [BEAM-8802] Don't clear watermark hold when adding elements. URL: https://github.com/apache/beam/pull/10191#discussion_r349750760 ########## File path: sdks/python/apache_beam/transforms/timeutil.py ########## @@ -64,19 +64,19 @@ class TimestampCombinerImpl(with_metaclass(ABCMeta, object)): @abstractmethod def assign_output_time(self, window, input_timestamp): - pass + raise NotImplementedError @abstractmethod def combine(self, output_timestamp, other_output_timestamp): - pass + raise NotImplementedError def combine_all(self, merging_timestamps): """Apply combine to list of timestamps.""" combined_output_time = None for output_time in merging_timestamps: if combined_output_time is None: combined_output_time = output_time - else: + elif output_time is not None: combined_output_time = self.combine( combined_output_time, output_time) Review comment: Currently the code can handle `None`s up until the first non-None value, and not after that. This makes it more consistent by allowing any values to be `None`. The else is to go onto the next value. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 348278) Time Spent: 1h (was: 50m) > Timestamp combiner not respected across bundles in streaming mode. > ------------------------------------------------------------------ > > Key: BEAM-8802 > URL: https://issues.apache.org/jira/browse/BEAM-8802 > Project: Beam > Issue Type: Bug > Components: sdk-py-core > Reporter: Robert Bradshaw > Priority: Major > Time Spent: 1h > Remaining Estimate: 0h > -- This message was sent by Atlassian Jira (v8.3.4#803005)