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https://issues.apache.org/jira/browse/BEAM-562?focusedWorklogId=230318&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-230318
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ASF GitHub Bot logged work on BEAM-562:
---------------------------------------
Author: ASF GitHub Bot
Created on: 19/Apr/19 23:28
Start Date: 19/Apr/19 23:28
Worklog Time Spent: 10m
Work Description: yifanmai commented on pull request #7994: [BEAM-562]
Add DoFn.setup and DoFn.teardown to Python SDK
URL: https://github.com/apache/beam/pull/7994#discussion_r277111918
##########
File path: sdks/python/apache_beam/runners/direct/transform_evaluator.py
##########
@@ -619,6 +619,7 @@ def start_bundle(self):
step_name=self._applied_ptransform.full_label,
state=DoFnState(self._counter_factory),
user_state_context=self.user_state_context)
+ self.runner.setup()
Review comment:
I added some pdb breakpoints and confirmed that the DoFn is cloned during
the test and that the lifecycle methods are called on the clones. See this
[thread](https://github.com/apache/beam/pull/7994#discussion_r277110671) for
where the cloning occurs.
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Issue Time Tracking
-------------------
Worklog Id: (was: 230318)
Time Spent: 6h 50m (was: 6h 40m)
> DoFn Reuse: Add new methods to DoFn
> -----------------------------------
>
> Key: BEAM-562
> URL: https://issues.apache.org/jira/browse/BEAM-562
> Project: Beam
> Issue Type: New Feature
> Components: sdk-py-core
> Reporter: Ahmet Altay
> Priority: Major
> Labels: sdk-consistency, triaged
> Time Spent: 6h 50m
> Remaining Estimate: 0h
>
> Java SDK added setup and teardown methods to the DoFns. This makes DoFns
> reusable and provide performance improvements. Python SDK should add support
> for these new DoFn methods:
> Proposal doc:
> https://docs.google.com/document/d/1LLQqggSePURt3XavKBGV7SZJYQ4NW8yCu63lBchzMRk/edit?ts=5771458f#
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