[jira] Commented: (NUTCH-94) MapFile.Writer throwing 'File exists error'.

["raghavendra prabhu (JIRA)" <ji...@apache.org>]

    [ http://issues.apache.org/jira/browse/NUTCH-94?page=comments#action_12331640 ] 

raghavendra prabhu commented on NUTCH-94:
-----------------------------------------

Ya Even I come across the same error 

The problem seems to be in the MapFile Writer where it tries to create a newWeb Db and the the directory already exists

I tried to remove the file but is being used by some other resource .So it is not gettign deleted

MapFile.Writer newDb = (comparator == null) ? new MapFile.Writer(fs, newDbFile.getPath(), keyClass, valueClass) : new MapFile.Writer(fs, newDbFile.getPath(), comparator, valueClass);

I tried to delete the newDbFile.getPath()
File dbfileexists=new File(newDbFile.getPath());
                if (dbfileexists.exists())
                {
                System.out.println("already exists");
                if(FileUtil.fullyDelete(dbfileexists))
                {
                    System.out.println("deleted successfully");
                }
                else
                {
                    System.out.println("not deleted");
                }
                }

and found that it already exists and is not getting deleted when you get the error

> MapFile.Writer throwing 'File exists error'.
> --------------------------------------------
>
>          Key: NUTCH-94
>          URL: http://issues.apache.org/jira/browse/NUTCH-94
>      Project: Nutch
>         Type: Bug
>   Components: fetcher
>     Versions: 0.6
>  Environment: Server 2003, Resin, 1.4.2_05
>     Reporter: Michael Couck

>
> Running Nutch inside a server JVM or multiple times in the same JVM, MapFile.Writer doesn't get collected or closed by the WebDBWriter and the associated files and directories are not deleted, consequently throws a File exists error in the constructor of MapFile.Writer.
> Seems that this portion of code is very heavily integrated into Nutch and I am hesitant to look for a solution personally as a retrofit will be necessary with every release.
> Has anyone got any ideas, had the same issue, any solutions?
> Regards
> Michael

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