We are using Solr as our search engine, and recently notice some user input wildcard query can lead to Solr dead loop in
org.apache.lucene.util.automaton.Operations.determinize() , and it also eats memory and finally OOM. the wildcard query seems like **?????????-???????o·???è??**。 Although we can validate the input parameter, but I also wonder is there any configuration which can disable complex wildcard query like this which lead to serve performance problems. Related statcktrace [image: Inline image 1] Thanks, Jian
