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https://issues.apache.org/jira/browse/SOLR-9458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16149609#comment-16149609
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Erik Gui commented on SOLR-9458:
--------------------------------
I am also having this issue trying to build the dictionary on the "name" field
on an index with around 45 million documents. If I change the field to be
another field that's used for faceting ("type"), then the dictionary seems to
be buildable after a long time. For reference my suggester config looks like
this:
{code:java}
<searchComponent name="suggest" class="solr.SuggestComponent">
<lst name="suggester">
<str name="name">mySuggester</str>
<str name="lookupImpl">FuzzyLookupFactory</str>
<str name="dictionaryImpl">DocumentDictionaryFactory</str>
<str name="field">name</str>
<str name="suggestAnalyzerFieldType">text_general</str>
<str name="buildOnStartup">false</str>
</lst>
</searchComponent>
{code}
My current workaround involves using HighFrequencyDictionaryFactory with
FreeTextLookupFactory, but the suggestion results are not what I would like to
see at all.
{code:xml}
<searchComponent name="suggest" class="solr.SuggestComponent">
<lst name="suggester">
<str name="name">mySuggester</str>
<str name="lookupImpl">FreeTextLookupFactory</str>
<str name="storeDir">suggester_free_dir</str>
<str name="dictionaryImpl">HighFrequencyDictionaryFactory</str>
<str name="field">name</str>
<str name="suggestFreeTextAnalyzerFieldType">suggestType</str>
<str name="buildOnStartup">false</str>
<str name="buildOnCommit">false</str>
</lst>
</searchComponent>
{code}
> 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: 6.1, 6.2
> 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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