[jira] Commented: (SOLR-1691) Deal with deleting old index files in Windows auto-magicly

["Lance Norskog (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-1691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12867945#action_12867945 ] 

Lance Norskog commented on SOLR-1691:
-------------------------------------

A different method would be: open the index, walk the FSDirectory, and delete every file that Lucene does not care about. Is this possible?

> Deal with deleting old index files in Windows auto-magicly
> ----------------------------------------------------------
>
>                 Key: SOLR-1691
>                 URL: https://issues.apache.org/jira/browse/SOLR-1691
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Hoss Man
>
> Windows users are frequently confused/frustrated by the size of an index after making lots of changes/commits because of the way Windows prevents files with open handles from being deleted.
> In Lucene-Java, IndexWriter will attempt to delete any old files whenever it can, but only on a subsequent change -- we should see if we could add something to Solr to try and be more proactive about this...
> http://old.nabble.com/Delete%2C-commit%2C-optimize-doesn%27t-reduce-index-file-size-to26958067.html

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