Solr snapshots are created using hard links. The file is not deleted as long as there is 1 or more link to it.
Bill On 2/13/07, Mike Klaas <[EMAIL PROTECTED]> wrote:
On 2/13/07, Ken Krugler <[EMAIL PROTECTED]> wrote: > >A Lucene's IndexReader opens all index files it needs when it is instantiated. > >Changes to a Lucene index via IndexWriter never change an existing > >file... new files are always created. > >Put the two together and it allows an IndexWriter (or anything else, > >like snapinstaller) to change the index in the background without > >impact to open readers. > > Right, but from looking at the snapinstaller script it seemed as > though the deletion of the "index" directory would be deleting files > out from under the IndexReader. Files aren't truly deleted until no process has an open file descriptor: http://users.actcom.co.il/~choo/lupg/tutorials/handling-files/handling-files.html#sys_file_unlink -Mike
