Use PIT + search_after for delete in serverless mode (#691) - #693
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harshavamsi merged 3 commits intoFeb 20, 2026
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February 20, 2026 18:57
…ect#691) Signed-off-by: Sotaro Hikita <bering1814@gmail.com>
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Signed-off-by: Sotaro Hikita <bering1814@gmail.com>
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Note: The Gradle Precommit CI job is expected to fail due to a dependency license SHA mismatch, which is unrelated to this PR and will be resolved by #688. |
Signed-off-by: Harsha Vamsi Kalluri <harshavamsi096@gmail.com>
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Description
RestRepository.delete()uses the Scroll API to iterate all documents for bulk deletion, which is called when Spark'sSaveMode.Overwriteis used. The Scroll API is not supported on OpenSearch Serverless, so overwrite operations fail when the existing document count exceeds the internal batch size (500).With fewer than 500 documents, the overwrite happens to succeed because all documents are returned in the initial search response and no scroll continuation is needed. With more than 500 documents, the scroll continuation call (
POST _search/scroll) returns 404.This change branches the delete logic so that serverless mode uses PIT + search_after pagination (via
scanLimitSearchAfter) to iterate all documents for deletion, consistent with the read path implemented in #586.Verified on EMR 7.12 + OpenSearch Serverless with 600 documents (exceeding the 500 batch size).
Issues Resolved
Fixes #691
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