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https://issues.apache.org/jira/browse/BEAM-12781?focusedWorklogId=640833&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-640833
]
ASF GitHub Bot logged work on BEAM-12781:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 23/Aug/21 20:45
Start Date: 23/Aug/21 20:45
Worklog Time Spent: 10m
Work Description: pabloem commented on a change in pull request #15357:
URL: https://github.com/apache/beam/pull/15357#discussion_r694296420
##########
File path: sdks/python/apache_beam/io/iobase.py
##########
@@ -1573,15 +1581,28 @@ def is_bounded(self):
return True
+class _RestrictionCoder(coders.Coder):
Review comment:
done
##########
File path: sdks/python/apache_beam/io/iobase.py
##########
@@ -886,12 +888,18 @@ def get_desired_chunk_size(total_size):
def expand(self, pbegin):
if isinstance(self.source, BoundedSource):
+ coders.registry.register_coder(BoundedSource, _MemoizingPickleCoder)
display_data = self.source.display_data() or {}
display_data['source'] = self.source.__class__
+
+ def output_source(_) -> BoundedSource:
+ assert isinstance(self.source, BoundedSource)
Review comment:
removed the function. (fwiw - I had used the assert to work around mypy
complaining about types)
##########
File path: sdks/python/apache_beam/coders/coders.py
##########
@@ -741,6 +742,36 @@ def __hash__(self):
return hash(type(self))
+class _MemoizingPickleCoder(_PickleCoderBase):
+ """Coder using Python's pickle functionality with memoization."""
+ def __init__(self, cache_size=16):
+ super(_MemoizingPickleCoder, self).__init__()
+ self.cache_size = cache_size
+
+ def _create_impl(self):
+ dumps = pickle.dumps
Review comment:
makes sense. I've put pickler in, since the current use (`BoundedSource`
elements) contains code and context.
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Issue Time Tracking
-------------------
Worklog Id: (was: 640833)
Time Spent: 1h 10m (was: 1h)
> SDFBoundedSourceReader behaves much slower compared with the original
> behavior of BoundedSource
> -----------------------------------------------------------------------------------------------
>
> Key: BEAM-12781
> URL: https://issues.apache.org/jira/browse/BEAM-12781
> Project: Beam
> Issue Type: Bug
> Components: io-py-common
> Reporter: Pablo Estrada
> Assignee: Pablo Estrada
> Priority: P2
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
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