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

CachedSqlEntityProcessor relies on DIHCacheSupport(Map getIdCacheData(...) ) that is not adapted to work with keys of type Integer, which is expected behavior for any cache. (Object key = context.resolve(cacheForeignKey);, this key should really be of type String)

SELECT CAST(id as CHAR(32)) AS CID,full_name FROM sm_conferences