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https://issues.apache.org/jira/browse/LUCENE-2433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karthick Sankarachary updated LUCENE-2433:
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Attachment: LUCENE-2433.patch
> A Remoting Split Policy For Managing Multiple Remote Directories
> -----------------------------------------------------------------
>
> Key: LUCENE-2433
> URL: https://issues.apache.org/jira/browse/LUCENE-2433
> Project: Lucene - Java
> Issue Type: New Feature
> Components: contrib/*, Index
> Affects Versions: 3.0.1
> Reporter: Karthick Sankarachary
> Attachments: LUCENE-2433.patch
>
>
> (Please note that the feature described in LUCENE-2425 is required reading
> for this issue.)
> The remoting split policy is an abstraction for a split index, where each
> sub-index points to a (potentially remote) URI-based directory. More
> formally, it establishes mappings between URIs and directories using the
> concept of a URIDirectory. Basically, that interface allows one to construct
> a directory instance based on a URI value.
> Currently, the following two URIs have been mapped:
> a) File URI: In this case, the path specified in the file URI maps to the
> location of a FSDirectory. While the path usually points to a folder in the
> local file system, it may refer to a NFS mount point, in which case the
> sub-directory is not co-located with the super-directory of the split index.
> b) RAM URI: In this case, the path specified in the URI may be empty, in
> which case a volatile RAMDirectory is created. In the event the path is
> non-empty, the RAM-based directory acts as a facade for a file-system-based
> directory.
> More (industrial-strength) URI mappings are currently in the works, and will
> be added as they become available.
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