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https://issues.apache.org/jira/browse/BEAM-10260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kenneth Knowles updated BEAM-10260:
-----------------------------------
Status: Open (was: Triage Needed)
> Nested iterable in state cache exceeds Python recursion limit
> -------------------------------------------------------------
>
> Key: BEAM-10260
> URL: https://issues.apache.org/jira/browse/BEAM-10260
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-harness
> Reporter: Maximilian Michels
> Assignee: Maximilian Michels
> Priority: P2
>
> With state caching enabled, the changes in BEAM-8298 lead to an unbounded
> nesting of state iterables when appending to a bag state, quickly resulting
> in an exception:
> {noformat}
> events = list(event_bag.read())
> File
> "/code/venvs/venv/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py",
> line 488, in __iter__ for elem in self.first:
> File
> "/code/venvs/venv/lib/python3.6/site-packages/apache_beam/runners/worker/statecache.py",
> line 186, in __iter__ for item in value:
> File
> "/code/venvs/venv/lib/python3.6/site-packages/apache_beam/runners/worker/statecache.py",
> line 186, in __iter__ for item in value:
> File
> "/code/venvs/venv/lib/python3.6/site-packages/apache_beam/runners/worker/statecache.py",
> line 186, in __iter__ for item in value: [Previous line repeated 977
> more times]
> RecursionError: maximum recursion depth exceeded while calling a Python
> object
> {noformat}
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