[SOLR-4813] Unavoidable IllegalArgumentException occurs when SynonymFilterFactory's setting has tokenizer factory's parameter.

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 4.3
• Fix Version/s: 4.3.1, 4.4, 6.0
• Component/s: Schema and Analysis
• Labels: SynonymFilterFactory
• Assignee: Chris M. Hostetter
• Reporter: Shingo Sasaki
• Created: 13/May/13 03:43
• Updated: 09/May/16 18:55
• Resolved: 14/May/13 22:13

Description

When I write SynonymFilterFactory' setting in schema.xml as follows, ...

<analyzer>
  <tokenizer class="solr.NGramTokenizerFactory" maxGramSize="2" minGramSize="2"/>
  <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"
   tokenizerFactory="solr.NGramTokenizerFactory" maxGramSize="2" minGramSize="2"/>
</analyzer>

IllegalArgumentException ("Unknown parameters") occurs.

Caused by: java.lang.IllegalArgumentException: Unknown parameters: {maxGramSize=2, minGramSize=2}
	at org.apache.lucene.analysis.synonym.FSTSynonymFilterFactory.<init>(FSTSynonymFilterFactory.java:71)
	at org.apache.lucene.analysis.synonym.SynonymFilterFactory.<init>(SynonymFilterFactory.java:50)
	... 28 more

However TokenizerFactory's params should be set to loadTokenizerFactory method in [FST|Slow]SynonymFilterFactory. (ref. SOLR-2909)

I think, the problem was caused by LUCENE-4877 ("Fix analyzer factories to throw exception when arguments are invalid") and SOLR-3402 ("Parse Version outside of Analysis Factories").

Issue Links

• is broken by: LUCENE-4877 Fix analyzer factories to throw exception when arguments are invalid