Fix initial load completion tracking race condition#6711
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lawofcycles wants to merge 2 commits intoopensearch-project:mainfrom
Open
Fix initial load completion tracking race condition#6711lawofcycles wants to merge 2 commits intoopensearch-project:mainfrom
lawofcycles wants to merge 2 commits intoopensearch-project:mainfrom
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dlvenable
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May 6, 2026
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@lawofcycles Is there a way to write a unit test that is fixed by this change?
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@dlvenable Yes, I added a unit test. It uses Mockito's |
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creation loop in performInitialLoad(). Previously, the completion key was created after all partitions, allowing workers to finish and call incrementSnapshotCompletionCount() before the key existed. Those increments were silently lost, causing waitForSnapshotComplete() to never reach the expected total. Signed-off-by: Sotaro Hikita <bering1814@gmail.com>
Verify that GlobalState (completion tracking) is created before InitialLoadTaskPartition, ensuring workers can report completion as soon as they acquire a partition. Signed-off-by: Sotaro Hikita <bering1814@gmail.com>
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Description
Move the completion tracking GlobalState creation to before the task partition loop in
performInitialLoad(). Previously it was created after all partitions, so workers that finished before the key existed would silently lose their completion increments, preventing the initial load from completing.Issues Resolved
Resolves #6686
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