Alastair Porter created SOLR-16588:
--------------------------------------
Summary: solr.DenseVectorField fieldType without a knnAlgorithm
parameter results in error
Key: SOLR-16588
URL: https://issues.apache.org/jira/browse/SOLR-16588
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 9.1
Reporter: Alastair Porter
Following the Dense Vector Search documentation at
[https://solr.apache.org/guide/solr/latest/query-guide/dense-vector-search.html]
Using a field definition of
{code:java}
<fieldType name="knn_vector" class="solr.DenseVectorField"
vectorDimension="4" similarityFunction="euclidean"/>
<field name="vector" type="knn_vector" multiValued="false"
stored="true"/>{code}
And then trying to index a document results in an error in solr:
{code:java}
2022-12-13 19:10:08.763 ERROR (qtp3540494-54) [ x:fsnn] o.a.s.s.HttpSolrCall
org.apache.solr.common.SolrException: null KNN algorithm is not supported =>
org.apache.solr.common.SolrException: null KNN algorithm is not supported
at
org.apache.solr.core.SchemaCodecFactory$1.getKnnVectorsFormatForField(SchemaCodecFactory.java:134)
org.apache.solr.common.SolrException: null KNN algorithm is not supported
at
org.apache.solr.core.SchemaCodecFactory$1.getKnnVectorsFormatForField(SchemaCodecFactory.java:134)
~[?:?]
at
org.apache.lucene.codecs.lucene92.Lucene92Codec$3.getKnnVectorsFormatForField(Lucene92Codec.java:101)
~[?:?]
at
org.apache.lucene.codecs.perfield.PerFieldKnnVectorsFormat$FieldsWriter.getInstance(PerFieldKnnVectorsFormat.java:148)
~[?:?]
at
org.apache.lucene.codecs.perfield.PerFieldKnnVectorsFormat$FieldsWriter.writeField(PerFieldKnnVectorsFormat.java:107)
~[?:?]
at
org.apache.lucene.index.VectorValuesWriter.flush(VectorValuesWriter.java:145)
~[?:?]
at org.apache.lucene.index.IndexingChain.writeVectors(IndexingChain.java:461)
~[?:?] {code}
This appears to be related to the changes introduced in SOLR-16245
Adding a parameter {{knnAlgorithm="hnsw"}} to the fieldType definition causes
the indexing process to work as expected
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
