Why Highlighting does not work on a Query results?

Question

I have a query like "+(+Contents:"risk factors" +Contents:"item 503" +Contents:concise) +(DocID:2548093)" it filters result but highlighting not works on the result of the query.. I tried to use all highlighters available in solr by appending hl.usefastvectorhighlighter but still highlighting does not works.. can any one help me on this.

Answer 1

we can fix this by increasing hl.maxAnalyzedChars its default value is 51200. I have increased it 100000 and it is working fine now.