Details
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Bug
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Status: Closed
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Blocker
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Resolution: Fixed
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None
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None
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None
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New
Description
When you call IW.rollback, IW asks all running merges to abort, and the merges should periodically check their abort flags (it's a "cooperative" mechanism, like thread interrupting in Java).
In 5.x/trunk we have a nice clean solution where the Directory checks the abort bit during writes, so the codec doesn't have to bother with this.
But in 4.x, we have to call MergeState.checkAbort.work, and I noticed that neither DVs nor norms call this.
Typically this is not a problem since merging DVs and norms is usually fast, but for a very large merge / very many DVs and norm'd fields, it could take non-trivial time to merge.