Wail Y. Alkowaileet created ASTERIXDB-3453:
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Summary: Incompressible pages are not entirely
Key: ASTERIXDB-3453
URL: https://issues.apache.org/jira/browse/ASTERIXDB-3453
Project: Apache AsterixDB
Issue Type: Bug
Components: STO - Storage
Affects Versions: 0.9.10
Reporter: Wail Y. Alkowaileet
Assignee: Wail Y. Alkowaileet
Fix For: 0.9.10
Incompressible pages are not written entirely. Although this won't impose an
issue in a non-cloud deployment, but in a cloud deployment, this would mess up
the file. The reason is that, in a cloud deployment, writes are "append-only".
That means, writes' offsets cannot be used to determine the write position.
Thus, if an incompressible page is written and the size of the page is smaller
than a full page, this could write this page's content at the wrong position in
the cloud storage – leading to have more bytes in local files than in the cloud.
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