[hibernate-issues] [Hibernate-JIRA] Commented: (HSEARCH-135) Create a RAMDirectoryProvider from an existing Lucene FSDirectory

Create a RAMDirectoryProvider from an existing Lucene FSDirectory ----------------------------------------------------------------- Key: HSEARCH-135 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-135 Project: Hibernate Search Issue Type: New Feature Components: directory provider Reporter: Hardy Ferentschik Priority: Minor Fix For: 3.3.0 It would be nice to have the ability to use a Lucene RAM index which gets constucted from an existing Lucene file based indexed. For example in an JMS setup the master could create a file based Lucene index, share it out to the slaves which in turn use this file based index to populate a RAM index. This would give you the best of two worlds. Not sure how hard it would be to implement this in an unclustered environment. [*] read from FS at startup (optionally, should be configurabile) [*] write back to FS at shutdown (optionally, should be configurabile) [*] document the behaviour, especially warning about this case: some setups are doing local clustering: 2 instances sharing the directory. This obviously can't work, so they should avoid using this feature of writing back to FS.