Github user milleruntime commented on the issue:
https://github.com/apache/accumulo/pull/159
Thanks for the input @dhutchis.
> Specify the contract that every iterator must close() its source. This
strategy works if every iterator, system and user-defined, follows the
contract. Existing iterators would need to be modified to do this, so it's a
breaking change.
I agree this is a sound strategy. The problem I am running into is our
underlying reuse of RFiles throughout the code. This became apparent when I ran
the BigRootTabletIT and IllegalStateException (Locality group reader closed)
was thrown during a scan after attempting to read from a closed RFile.
I don't know how we can implement this strategy without making a
fundamental change to how we use RFiles. And if this is the case, then it
would seem the risk of a change this complex, would far out weight the reward
of something nice to have.
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