Mike Drob created SOLR-9524: ------------------------------- Summary: SolrIndexSearcher.getIndexFingerprint uses dubious sunchronization Key: SOLR-9524 URL: https://issues.apache.org/jira/browse/SOLR-9524 Project: Solr Issue Type: Bug Security Level: Public (Default Security Level. Issues are Public) Affects Versions: 6.3 Reporter: Mike Drob
In SOLR-9310 we added more code that does some fingerprint caching in SolrIndexSearcher. However, the synchronization looks like it could be made more efficient and may have issues with correctness. https://github.com/apache/lucene-solr/blob/branch_6x/solr/core/src/java/org/apache/solr/search/SolrIndexSearcher.java#L2371-L2385 Some of the issues: * Double checked locking needs use of volatile variables to ensure proper memory semantics. * sync on a ConcurrentHashMap is usually a code smell -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org