Github user andrewor14 commented on the pull request:
https://github.com/apache/spark/pull/1103#issuecomment-46356911
I don't think we ever remove a block from DiskStore except explicitly. If a
block is removed from disk for some reason, then something has gone really
wrong and we should probably report the exception. For the memory case, it will
go into the memory and return None, which is fine. Is there any particular
reason for this patch?
(Also, please add the JIRA number in the title of the PR)
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