Atomic s3 snapshots #7162
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Atomic s3 snapshots #7162
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- Add FileIOTest.testConditionalWriteDefaults for tryToWriteAtomicIfAbsent - Add RenamingSnapshotCommitTest for conditional vs lock-based commit paths Co-Authored-By: Claude <[email protected]>
Uses same Hadoop 3.4+ createFile().overwrite(false) API as S3. Co-Authored-By: Claude <[email protected]>
Hadoop 3.4.x switched from AWS SDK v1 to v2, requiring updates to: - S3MultiPartUpload: Use SDK v2 types and new WriteOperationHelper API - S3TwoPhaseOutputStream: Use CompleteMultipartUploadResponse - S3MultiPartUploadCommitter: Use CompletedPart instead of PartETag Co-Authored-By: Claude <[email protected]>
- Update Hadoop from 3.3.4 to 3.4.2 - Update hadoop-shaded-guava from 1.1.1 to 1.4.0 - Update hadoop-shaded-protobuf from 3_7 to 3_25 - Add software.amazon.awssdk:bundle:2.29.52 Co-Authored-By: Claude <[email protected]>
- Update Hadoop from 3.3.4 to 3.4.2 - Update hadoop-shaded-guava from 1.1.1 to 1.4.0 - Update hadoop-shaded-protobuf from 3_7 to 3_25 Co-Authored-By: Claude <[email protected]>
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Closing in favour of #7187 |
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Purpose
The latest hadoop s3a libraries expose conditional writes https://issues.apache.org/jira/browse/HADOOP-19256.
We can utilise this in order to avoid potential data loss with snapshots being overwritten.
Tests
Added coverage
API and Format
No changes to the physical storage or APIs
Documentation
TODO - update docs