Philipp Moritz created ARROW-2788:
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Summary: [Plasma] Defining Delete semantics
Key: ARROW-2788
URL: https://issues.apache.org/jira/browse/ARROW-2788
Project: Apache Arrow
Issue Type: Improvement
Reporter: Philipp Moritz
We should define what the semantics of Plasma's Delete operation is, especially
in the presence of errors (object in use is deleted, non-existing object is
deleted).
My current take on this is the following:
Delete should be a hint to the store to delete, so if the object is not
present, it should be a no-op. If an object that is in use is deleted, the
store should delete it as soon as the reference count goes to zero (it would
also be ok, but less desirable in my opinion, to not delete it).
I think this is a good application of the "Defining errors away" from John
Ousterhouts book (A Philosophy of Software Design).
Please comment in this thread if you have different opinions so we can discuss!
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