GH-36482: [C++][CI] Fix sporadic test failures in AsofJoinBasicTest#36580
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rtpsw wants to merge 1 commit intoapache:mainfrom
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GH-36482: [C++][CI] Fix sporadic test failures in AsofJoinBasicTest#36580rtpsw wants to merge 1 commit intoapache:mainfrom
rtpsw wants to merge 1 commit intoapache:mainfrom
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@github-actions crossbow submit verify-rc-source-macos |
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Revision: 58a648b Submitted crossbow builds: ursacomputing/crossbow @ actions-cdacd2d9b4
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pitrou
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Jul 10, 2023
| memo_.UpdateTime(GetTime(queue_.UnsyncFront().get(), 0)); // time changed | ||
| DCHECK_GT(queue_.UnsyncFront().batch->num_rows(), | ||
| 0); // empty batches disallowed | ||
| memo_.UpdateTime(GetTime(queue_.UnsyncFront().batch.get(), 0)); // time changed |
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Are you sure that queue_.UnsyncFront() here is the same as just above?
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Yes, because only the processing thread, which runs this code, is popping from the (front of the) queue.
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In a discussion with @icexelloss, we decided to close this PR. |
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What changes are included in this PR?
The key hasher is invalidated before the first invocation of
GetKey(viaGetLatestKey) after a new batch arrives. In the pre-PR code, this invalidation happens withinAdvance, which is called fromAdvanceAndMemoizeonly afterGetLatestKeyis called. The change adds numbering to record batches pushed to the processing thread to enable detecting the pushed record batch in order to then invalidate the key hasher.Are these changes tested?
Yes, by existing tests.
Are there any user-facing changes?
No.
This PR contains a "Critical Fix".