[SOLR-17215] Solr Replication doesn't work for suggester for FreeTextLookupFactory

• Type: Bug
• Status: Open
• Priority: Blocker
• Resolution: Unresolved
• Affects Version/s: 8.11
• Component/s: Suggester
• Assignee: Unassigned
• Reporter: Parag Ninawe
• Created: 27/Mar/24 11:54
• Updated: 28/Apr/24 19:29

Description

Tested on 
Solr version - 8.11.2
Solr Cloud: Solr Index with 3 replicas and each replica is on a different server/node. Only 1 shard.
 
Suggester component:
 

<lst name="suggester">
  <str name="name">suggester_en</str>
  <str name="lookupImpl">FreeTextLookupFactory</str>
  <str name="dictionaryImpl">DocumentDictionaryFactory</str>
  <str name="field">twm_suggest_en</str>
  <str name="suggestFreeTextAnalyzerFieldType">phrase_suggest_en</str>
  <str name="buildOnCommit">false</str>
  <str name="buildOnStartup">false</str>
</lst>

 
Autocomplete request handler:
 

<requestHandler name="/autocomplete" class="solr.SearchHandler" startup="lazy">
  <lst name="defaults">
    <str name="terms">false</str>
    <str name="distrib">false</str>
    <str name="spellcheck">false</str>
    <str name="spellcheck.onlyMorePopular">true</str>
    <str name="spellcheck.extendedResults">false</str>
    <str name="spellcheck.count">1</str>
    <str name="suggest">false</str>
    <str name="suggest.count">10</str>
  </lst>
  <arr name="components">
    <str>terms</str>
    <str>spellcheck</str>
    <str>suggest</str>
  </arr>
</requestHandler>  

 
Following is the request to build the suggest dictionary:
/suggest?json.nl=flat&omitHeader=true&suggest.build=false&suggest.reload=false&suggest=true&suggest.buildAll=true
 
After successfully building the suggester dictionary, we encounter an issue with autocomplete responses. Autocomplete requests only succeed if they are routed to the replica where the /suggest command was executed. Otherwise, an error occurs:
 

java.lang.IllegalStateException: Lookup not supported at this time

 
I assume, the suggester dictionary only builds on the replica/node where the suggest command was executed and replication doesn't occur
 

{Couldn't find anything in docs & also there was no help from mailing list}