Chris de Kok created SOLR-9458:
----------------------------------
Summary: DocumentDictionaryFactory StackOverflowError on many
documents
Key: SOLR-9458
URL: https://issues.apache.org/jira/browse/SOLR-9458
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: Suggester
Affects Versions: 6.2, 6.1
Reporter: Chris de Kok
When using the FuzzyLookupFactory in combinarion with the
DocumentDictionaryFactory it will throw a stackoverflow trying to build the
dictionary.
Using the HighFrequencyDictionaryFactory works ok but behaves very different.
```
<searchComponent name="suggest" class="solr.SuggestComponent">
<lst name="suggester">
<str name="name">suggest</str>
<str name="field">suggestions</str>
<str name="suggestAnalyzerFieldType">suggestions</str>
<str name="lookupImpl">FuzzyLookupFactory</str>
<str name="dictionaryImpl">DocumentDictionaryFactory</str>
<str name="storeDir">suggest_fuzzy</str>
<str name="exactMatchFirst">true</str>
<str name="buildOnStartup">false</str>
<str name="buildOnCommit">false</str>
<str name="buildOnOptimize">true</str>
<float name="threshold">0</float>
</lst>
````
null:java.lang.StackOverflowError
at
org.apache.lucene.util.automaton.Operations.topoSortStatesRecurse(Operations.java:1311)
at
org.apache.lucene.util.automaton.Operations.topoSortStatesRecurse(Operations.java:1311)
at
org.apache.lucene.util.automaton.Operations.topoSortStatesRecurse(Operations.java:1311)
at
org.apache.lucene.util.automaton.Operations.topoSortStatesRecurse(Operations.java:1311)
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