Hello, You can not do this in Solr, you cannot even send non-character code points in the first place. For Apache Nutch we solved the problem by stripping those non-character code points from Strings before putting them in SolrDocument. Check the ticket, you can easily resuse the strip method.
Perhaps it would be a good idea to move the method to SolrDocument or somewhere in SolrJ in the first place, so others don't have to bother with this problem. Regards, Markus https://issues.apache.org/jira/browse/NUTCH-1016 -----Original message----- > From:Arnold Bronley <arnoldbron...@gmail.com> > Sent: Thursday 14th September 2017 19:46 > To: solr-user@lucene.apache.org > Subject: How to remove control characters in stored value at Solr side > > I know I can apply PatternReplaceFilterFactory to remove control characters > from indexed value. However, is it possible to do similar thing for stored > value? Because of some control characters included in indexing request, > Solr throws Illegal Character Exception. >
