Apache Solr and Apache Lucene limitations

The Apache Solr and Apache Lucene limitations that apply to DSE Search.

Apache Solr™ and Apache Lucene® limitations

This topic lists the Apache Solr and Apache Lucene limitations that apply to DSE Search.
  • The 2.1 billion records limitation, per index on each node, as described in Lucene limitations.
  • The 1024 maxBoolean clause limit in SOLR-4586.
  • Solr field name policy applies to the indexed field names:
    • Every field must have a name.
    • Field names must consist of alphanumeric or underscore characters only.
    • Fields cannot start with a digit.
    • Names with both leading and trailing underscores (for example, _version_) are reserved.
    Note: Non-compliant field names are not supported from all components. Backward compatibility is not guaranteed.
  • Limitations and known Apache Solr issues apply to DSE Search queries. For example: incorrect SORT results for tokenized text fields.