AntonOttoW commented on issue #296:
URL: https://github.com/apache/lucenenet/issues/296#issuecomment-721908527
In my case, when doing a fuzzy search and doing load testing I get the
IndexOutOfRangeException with the following stack trace:
at Lucene.Net.Util.Automaton.UTF32ToUTF8.Convert(Automaton utf32)
at Lucene.Net.Util.Automaton.CompiledAutomaton..ctor(Automaton automaton,
Nullable`1 finite, Boolean simplify)
at Lucene.Net.Search.FuzzyTermsEnum.InitAutomata(Int32 maxDistance)
at Lucene.Net.Search.FuzzyTermsEnum.GetAutomatonEnum(Int32 editDistance,
BytesRef lastTerm)
at Lucene.Net.Search.FuzzyTermsEnum.MaxEditDistanceChanged(BytesRef
lastTerm, Int32 maxEdits, Boolean init)
at Lucene.Net.Search.FuzzyTermsEnum..ctor(Terms terms, AttributeSource
atts, Term term, Single minSimilarity, Int32 prefixLength, Boolean
transpositions)
at Lucene.Net.Search.FuzzyQuery.GetTermsEnum(Terms terms, AttributeSource
atts)
at Lucene.Net.Search.TermCollectingRewrite`1.CollectTerms(IndexReader
reader, MultiTermQuery query, TermCollector collector)
at Lucene.Net.Search.TopTermsRewrite`1.Rewrite(IndexReader reader,
MultiTermQuery query)
at Lucene.Net.Search.BooleanQuery.Rewrite(IndexReader reader)
at Lucene.Net.Search.BooleanQuery.Rewrite(IndexReader reader)
at Lucene.Net.Search.FilteredQuery.Rewrite(IndexReader reader)
at Lucene.Net.Search.IndexSearcher.Rewrite(Query original)
at Lucene.Net.Search.IndexSearcher.CreateNormalizedWeight(Query query)
at Lucene.Net.Search.IndexSearcher.Search(Query query, Filter filter,
Int32 n, Sort sort)
I'm running a thousand requests that is ramped up over 60 seconds. I then
get an error rate of about 20 to 30 percent.
I then included a retry whenever I catch this exception and have brought the
error rate down to 1 to 2 percent. (I don't count the errors in the retries and
only the ones that didn't return success after 3 attempts)
Interesting thing is, when I removed the fuzzy search, I was able to do a
1000 successful requests. No issues.
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