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From Sergey <semy...@yandex.ru>
Subject Re: Re: How to close IndexSearcher so that index file gets released?
Date Mon, 16 Aug 2010 13:41:37 GMT
Thanks, Ian

Somehow I did not bother to read the MMapDirectory javadoc.


16.08.10, 17:27, "Ian Lea" <ian.lea@gmail.com>:

> Read the javadocs for MMapDirectory.
>  
>  --
>  Ian.
>  
>  
>  On Mon, Aug 16, 2010 at 2:21 PM, Mylnikov Sergey  wrote:
>  > Hi,
>  >
>  > I want to be able to regenerate index from time to time. I'm using IndexSearcher
for search and want to be able to release the current index file so that I can replace it
with the new one. But once IndexSearcher is instantiated it does not seem to release index
file even if I call close().
>  >
>  > I'm running the test on Windows XP. Here is a short test that I use:
>  >
>  > String indexDir = "C:/IndexTemp2/index/";
>  > IndexSearcher searcher = new IndexSearcher(new MMapDirectory(new File(indexDir)));
>  > searcher.close();
>  > /*
>  >  Trying to see if the index file can be modified
>  >  */
>  > new FileWriter(indexDir + "_0.cfs");
>  > /*
>  >  java.io.FileNotFoundException: C:\IndexTemp2\index\_0.cfs
>  >  (The requested operation cannot be performed on a file with a user-mapped section
open.)
>  >  */
>  >
>  > After I close IndexSearcher I try to check if I can modify file, but it is in use.
>  >
>  > Could someone tell me what is the correct way to close the IndexReader?
>  >
>  > I will try to attach the JUnit test class and index directory as ZIP archive to
this message.
>  >
>  > Thanks,
>  > Sergey
>  >
>  >
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