Are there way to overcome field max length barrier in Solr?

Question

I have this xml:

    <field name="text" type="text_en" default="" indexed="true" stored="true"/> 
  <field name="text" type="keyword_content" default="" indexed="true" stored="true" />
   <fieldType name="keyword_content" class="solr.TextField" omitNorms="true" positionIncrementGap="100">
      <analyzer type="index">
        <tokenizer name="keyword"/>
      </analyzer>
      <analyzer type="query">
        <tokenizer name="keyword"/>
      </analyzer>    
   </fieldType>

   <copyField source="text" dest="text_exact" />

And on reindex i'm getting error with large documents. Is it possible to fix that?