[jira] Updated: (LUCENE-2259) add IndexWriter.removeUnferencedFiles, so apps can more immediately delete index files when readers are closed

["Michael McCandless (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-2259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless updated LUCENE-2259:
---------------------------------------

    Attachment: LUCENE-2259.patch

Attached patch.

I named the method deleteUnusedFiles.  Also, when an NRT reader is closed, I call that method.

> add IndexWriter.removeUnferencedFiles, so apps can more immediately delete index files when readers are closed
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-2259
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2259
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: 3.1
>
>         Attachments: LUCENE-2259.patch
>
>
> This has come up several times on the user's list.
> On Windows, which prevents deletion of still-open files, IndexWriter cannot remove files that are in-use by open IndexReaders.  This is fine, and IndexWriter periodically retries the delete, but it doesn't retry very often (only on open, on flushing a new segment, and on committing a merge).  So it lacks immediacy.
> With this expert method, apps that want faster deletion can call this method.

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