Adrien Grand created LUCENE-8166:
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Summary: Require merge instances to be consumed in the thread that
created them
Key: LUCENE-8166
URL: https://issues.apache.org/jira/browse/LUCENE-8166
Project: Lucene - Core
Issue Type: Task
Reporter: Adrien Grand
I would like to improve AssertingCodec to add the restriction that merge
instances can only be consumed from the thread that pulled them. This is
something that I relied on in order to avoid cloning index inputs too much when
implementing LUCENE-4198, but this is neither documented nor checked.
For the record, I found that it was already an issue before LUCENE-4198 was
merged, for instance if you would pull a merge instance of the default stored
fields reader and clone it (for use in another thread), it would no longer be a
merge instance. So I think this new restriction makes sense?
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