Stephanie Wang created ARROW-1775:
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Summary: Ability to abort created but unsealed Plasma objects
Key: ARROW-1775
URL: https://issues.apache.org/jira/browse/ARROW-1775
Project: Apache Arrow
Issue Type: New Feature
Components: Plasma (C++)
Reporter: Stephanie Wang
It would be useful to allow a Plasma client to abort an object that it created
but hasn't yet sealed. After the abort, it should appear as if the object was
never created all. The logic is similar to the delete case, except that the
client must release the object atomically with the removal of the object from
the cache and store.
In Ray, for example, we need this for the distributed version of the Plasma
store, where many Plasma clients transfer objects to each other. If a sending
Plasma client fails during a transfer, we want to make sure that the receiving
client can abort the transfer, so that we can later recreate the object
successfully. Otherwise, we will fail with an error that the object already
exists.
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