LUCENE-5477 - added near-real-time suggest building to AnalyzingInfixSuggester. One of the changes that went in was a writer is persisted now to support real time updates via the add() and update() methods.
When we call Solr's reload command, a new instance of AnalyzingInfixSuggester is created. When trying to create a new writer on the same Directory a lock cannot be obtained and Solr fails to reload the core.
Also when AnalyzingInfixLookupFactory throws a RuntimeException we should pass along the original message.
I am not sure what should be the approach to fix it. Should we have a reloadHook where we close the writer?