[hibernate-issues] [Hibernate-JIRA] Commented: (HSEARCH-135) Create a RAMDirectoryProvider from an existing Lucene FSDirectory
Sanne Grinovero (JIRA)
noreply at atlassian.com
Thu Oct 29 09:42:13 EDT 2009
[ http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=34344#action_34344 ]
Sanne Grinovero commented on HSEARCH-135:
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Got some valuable comments about this: https://forum.hibernate.org/viewtopic.php?f=9&t=1000523
summing up TODO:
[*] 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.
> 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: Trivial
>
> 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.
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