According to the documentation, the standard query parser uses asterisks to do wild card searches[1]. If you do not need to do wildcard queries and what you are trying to do is to use the asterisks as a search term, you should escape it[2]
[1] https://lucene.apache.org/solr/guide/6_6/the-standard-query-parser.html#TheS tandardQueryParser-WildcardSearches [2] https://lucene.apache.org/solr/guide/6_6/the-standard-query-parser.html#TheS tandardQueryParser-EscapingSpecialCharacters -----Original Message----- From: Shreyas Kothiya <shreyas.koth...@archivesocial.com> Sent: Tuesday, March 3, 2020 11:43 AM To: solr-user@lucene.apache.org Subject: Solr Search cause high CPU with ** Hello we are using SOLR 6.6. we recently noticed unusual CPU spike. while one of customer did search with ** in query string. we had customer who searched for following term q = N*W* 154 ** underpass it caused CPU to go above 80%. our normal range of CPU is around 20%. I wanted to know few things. 1. what does ** mean in SOLR search. 2. Is there a bug filed already for this issue. Please let me know if you need more information. Thanks Shreyas Kothiya
