Solr DataImportHandler CachedSqlEntityProcessor ClassCastException

Question

I am using Solr 4.6.0 and trying to import my data using CachedSqlEntityProcessor, but somehow I end up getting a ClassCastException.

Answer 1

Solr CachedSqlEntityProcessor is depreciated somewhere around version 4.5. The new syntax uses cacheImpl, cacheKey & cacheLookup

I had to update the SQL in my data-config.xml

Old Syntax

processor="CachedSqlEntityProcessor"
where="fkId=parentTable.parentId"

New Syntax

cacheKey="fkId" cacheLookup="parenttable.parentId" cacheImpl="SortedMapBackedCache"

See full latest Solr wiki info, the old DataImportHanlder page is out of date https://cwiki.apache.org/confluence/display/solr/Uploading+Structured+Data+Store+Data+with+the+Data+Import+Handler#UploadingStructuredDataStoreDatawiththeDataImportHandler-EntityProcessors