Trần Tiến Đức created JAMES-3008:
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Summary: BlobId list in Cassandra - pre-write check
Key: JAMES-3008
URL: https://issues.apache.org/jira/browse/JAMES-3008
Project: James Server
Issue Type: Sub-task
Reporter: Trần Tiến Đức
Introduced a `BlobIdExistantTester` API within blob-api:
{code:java}
interface BlobIdExistantTester {
Mono<Void> add(BlobId blobId);
Mono<Boolean> testExistance(BlobId blobId);
}
{code}
Create a `FakeBlobIdExistantTester` that always returs false.
Create a `CassandraBlobIdExistantTester` and the related tests.
Ensure `ObjectStorageBlobDAO`:
- Don't persist small blobs that already exist
- Don't attempt to rename (copy) big blobs that already exist - deleting the
intermediary blob supplied is enough - and faster.
when cassandra is down, just store it as normal
Propose a proof of concept regarding these changes.
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