chore(refactor): Remove Partition.close #32
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maxi297
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📝 Walkthrough📝 WalkthroughWalkthroughThe changes in this pull request involve multiple modifications across several classes, primarily focusing on the handling of partition management and cursor functionality. Key alterations include the removal of cursor parameters from various constructors, the introduction of enhanced error handling, and a shift in how partitions are closed—transitioning from direct calls on partitions to utilizing the stream's cursor. These adjustments aim to streamline the code and improve the encapsulation of partition management logic. Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant Stream
participant Cursor
participant Partition
User->>Stream: Request to complete partition
Stream->>Cursor: close_partition(partition)
Cursor->>Partition: Close partition logic
Partition-->>Stream: Acknowledgment of closure
Stream-->>User: Confirmation of partition completion
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🚧 Files skipped from review as they are similar to previous changes (2)
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Actionable comments posted: 1
🧹 Outside diff range and nitpick comments (4)
airbyte_cdk/sources/concurrent_source/concurrent_read_processor.py (1)
117-118: LGTM! The change aligns well with the PR objectivesThe implementation correctly moves the partition closure responsibility from the partition to the stream's cursor, which helps reduce the coupling between partitions and cursors. The error handling is preserved, making this a safe change.
Quick question though - should we add a debug log here to help with troubleshooting partition closures in production? Something like
self._logger.debug(f"Closing partition for stream {partition.stream_name()}"), wdyt? 🤔unit_tests/sources/streams/concurrent/test_adapters.py (1)
119-121: Consider adding cursor independence test caseThe test covers transformation scenarios well, but what do you think about adding a test case that explicitly verifies the partition's independence from cursor operations? This would help document and enforce the architectural change we're making. wdyt?
Example test case:
def test_stream_partition_cursor_independence(): stream = Mock() partition = StreamPartition( stream, None, Mock(), SyncMode.full_refresh, None, None ) # Verify that partition operations don't depend on or affect cursor state assert partition.read() is not None # Should work without cursorunit_tests/sources/streams/concurrent/test_concurrent_read_processor.py (2)
308-308: Consider adding specific error cases for cursor.close_partition, wdyt?While the test covers the basic error case, we might want to add specific test cases for different types of errors that could occur during partition closure (e.g., connection errors, state persistence errors). This would help ensure robust error handling.
Example additional test case:
def test_given_specific_errors_on_partition_complete_sentinel(): cases = [ (ConnectionError("Failed to connect"), "connection error"), (StateError("Failed to persist state"), "state persistence error"), ] for error, scenario in cases: with self.subTest(scenario=scenario): self._stream.cursor.close_partition.side_effect = error # ... rest of the test
Line range hint
1-736: Consider adding integration test coverage, wdyt?While the unit test coverage is comprehensive, we might want to add integration tests that verify the entire flow from partition creation to closure, especially focusing on error recovery scenarios.
I can help draft an integration test suite if you're interested.
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📒 Files selected for processing (8)
airbyte_cdk/sources/concurrent_source/concurrent_read_processor.py(1 hunks)airbyte_cdk/sources/file_based/stream/concurrent/adapters.py(0 hunks)airbyte_cdk/sources/streams/concurrent/adapters.py(0 hunks)airbyte_cdk/sources/streams/concurrent/partitions/partition.py(0 hunks)unit_tests/sources/file_based/stream/concurrent/test_adapters.py(2 hunks)unit_tests/sources/file_based/stream/concurrent/test_file_based_concurrent_cursor.py(0 hunks)unit_tests/sources/streams/concurrent/test_adapters.py(3 hunks)unit_tests/sources/streams/concurrent/test_concurrent_read_processor.py(4 hunks)
💤 Files with no reviewable changes (4)
- airbyte_cdk/sources/file_based/stream/concurrent/adapters.py
- airbyte_cdk/sources/streams/concurrent/adapters.py
- airbyte_cdk/sources/streams/concurrent/partitions/partition.py
- unit_tests/sources/file_based/stream/concurrent/test_file_based_concurrent_cursor.py
🔇 Additional comments (8)
unit_tests/sources/file_based/stream/concurrent/test_adapters.py (2)
206-206: LGTM! Hash computation remains stable
The removal of the cursor parameter from the constructor doesn't affect the hash computation, which is good. The test still effectively verifies the hash generation based on stream name and file metadata.
127-127: Consider adding test cases for cursor-related behavior?
The removal of _ANY_CURSOR from the constructor aligns with moving partition management to the stream's cursor. However, should we add test cases to verify that the cursor's close_partition method is called correctly when needed? wdyt?
unit_tests/sources/streams/concurrent/test_adapters.py (2)
79-81: LGTM! Clean removal of cursor dependency
The simplified constructor call aligns well with the PR's goal of removing partition-cursor dependency while maintaining complete test coverage of the partition generation functionality.
190-192: LGTM! Hash computation remains robust
The hash computation test cases appropriately verify partition identity without cursor dependency. The coverage of both slice scenarios (with and without) ensures robust partition identification.
unit_tests/sources/streams/concurrent/test_concurrent_read_processor.py (4)
252-252: LGTM! Good test coverage for successful partition closure.
The assertion verifies that the cursor's close_partition method is called exactly once, which aligns with the PR's objective of moving partition closure responsibility to the cursor.
301-301: LGTM! Comprehensive test for stream completion scenario.
The test ensures that the cursor's close_partition is called when the stream is complete, maintaining consistency with the new design.
378-378: LGTM! Good coverage of non-completion scenario.
The test verifies that cursor.close_partition is still called even when the stream isn't complete, which is the correct behavior.
736-736: LGTM! Important negative test case.
Good test coverage ensuring that unsuccessful partition completions don't trigger partition closure, preventing potential state corruption.
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What
Work as part of https://github.com/airbytehq/airbyte-internal-issues/issues/10552
Following this conversation, we have moved part of the state management to the concurrent read processor. However, the close is still done as part of the partition. The reason this is annoying is that it adds a dependency between the partitions and the cursor and now every time there is a change in the cursor, it might affect the partitions.
How
We can remove this dependency by calling
stream.cursor.close_partition(...)instead ofpartition.closeas part of the concurrent read processor.Summary by CodeRabbit
Release Notes
New Features
Bug Fixes
Tests
FileBasedStreamPartitionandStreamPartitionto reflect changes in cursor management.