[hibernate-issues] [Hibernate-JIRA] Commented: (HSEARCH-626) Allow MassIndexer to work alongside regular indexing / querying

Allow MassIndexer to work alongside regular indexing / querying --------------------------------------------------------------- Key: HSEARCH-626 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-626 Project: Hibernate Search Issue Type: New Feature Components: massindexer Reporter: Emmanuel Bernard Assignee: Sanne Grinovero Fix For: 4.0.0.Alpha1 Some people want to use mass indexer to reindex live some data. This is problematic today as MassIndexer expects to work alone / offline. I can see at least one approach: - copy the index to a new Directory before mass indexing (or if exclusive, start with a new Directory while keeping the old Directory in place - the current directory needs to become read-only - all index update (on the entity) requests should be queued up for after massIndexer is done - MassIndexer swaps the current and the new directory - indexing and querying resume as normal Note that we need to work on a different directory because mass indexer does delete all entries of an entity before starting the reindexing process.