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https://issues.apache.org/jira/browse/LUCENE-7747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jim Ferenczi resolved LUCENE-7747.
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Resolution: Fixed
Fix Version/s: master (7.0)
Thanks [~mikemccand] !
> QueryBuilder should build side-paths query (graph query) lazily
> ---------------------------------------------------------------
>
> Key: LUCENE-7747
> URL: https://issues.apache.org/jira/browse/LUCENE-7747
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Jim Ferenczi
> Priority: Blocker
> Fix For: master (7.0), 6.5
>
> Attachments: LUCENE-7747.patch
>
>
> In LUCENE-7638 we generate a query for each multi-token path in the graph and
> combine them at the end in a boolean query.
> This can lead to OOM when the number of path is big, instead we should build
> the disjunction of these paths lazily in order to throw "too many clauses"
> early if the number of paths is bigger than max boolean clauses.
> For instance a shingle filter with shingles of different size produces a
> graph with multiple side paths at each position. If the input query has a lot
> of tokens, the number of paths (query) created is exponential. For this use
> case it is maybe preferable to disallow graph query analysis completely but
> when allowed we should also be protected against combinatorial explosion.
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