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From "Wouter Heijke" <whei...@xs4all.nl>
Subject Re: NIOFSDirectory
Date Fri, 05 Dec 2008 10:11:28 GMT
This is 2.9 code.
For 2.4 you're stuck with the system property.

Wouter

> Thanks!
> -John
>
> On Thu, Dec 4, 2008 at 2:16 PM, Yonik Seeley <yonik@apache.org> wrote:
>
>> Details in the bug:
>> https://issues.apache.org/jira/browse/LUCENE-1451
>>
>> Use this constructor to create an instance of NIODirectory:
>>
>>  /** Create a new NIOFSDirectory for the named location.
>>   *
>>   * @param path the path of the directory
>>   * @param lockFactory the lock factory to use, or null for the default.
>>   * @throws IOException
>>   */
>>  public NIOFSDirectory(File path, LockFactory lockFactory) throws
>> IOException {
>>    super(path, lockFactory);
>>  }
>>
>> -Yonik
>>
>>
>> On Thu, Dec 4, 2008 at 5:08 PM, John Wang <john.wang@gmail.com> wrote:
>> > That does not help. The File/path is not stored with the instance. It
>> is
>> in
>> > a map FSDirectory keeps statically. Should subclasses of FSDirectory
>> be
>> > modifying the map?
>> > This is not a question about how to subclass or customize FSDirectory.
>> This
>> > is more on how to use NIOFSDirectory class. I am hoping for a simply
>> answer,
>> > is what I am doing (setting the class name statically on system
>> property)
>> > the right way?
>> >
>> > -John
>> >
>> > On Thu, Dec 4, 2008 at 2:00 PM, Yonik Seeley <yonik@apache.org> wrote:
>> >
>> >> On Thu, Dec 4, 2008 at 4:32 PM, Glen Newton <glen.newton@gmail.com>
>> wrote:
>> >> > Sorry....what version are we talking about?  :-)
>> >>
>> >> The current development version of Lucene allows you to directly
>> >> instantiate FSDirectory subclasses.
>> >>
>> >> -Yonik
>> >>
>> >>
>> >> > thanks,
>> >> >
>> >> > Glen
>> >> >
>> >> > 2008/12/4 Yonik Seeley <yonik@apache.org>:
>> >> >> On Thu, Dec 4, 2008 at 4:11 PM, John Wang <john.wang@gmail.com>
>> wrote:
>> >> >>> Hi guys:
>> >> >>>    We did some profiling and benchmarking:
>> >> >>>
>> >> >>>    The thread contention on FSDIrectory is gone, and for the
set
>> of
>> >> queries
>> >> >>> we are running, performance improved by a factor of 5 (to be
>> >> conservative).
>> >> >>>
>> >> >>>    Great job, this is awesome, a simple change and made a huge
>> >> difference.
>> >> >>>
>> >> >>>    To get NIOFSDirectory installed, I didn't find any
>> documentation
>> >> >>> (doesn't mean there aren't any), after reading the code, I
>> resorted
>> to:
>> >> >>>
>> >> >>>  static
>> >> >>>  {
>> >> >>>
>> >> >>>
>> >>
>> System.setProperty("org.apache.lucene.FSDirectory.class",NIOFSDirectory.class.getName());
>> >> >>>  }
>> >> >>>   I am sure this is not the intended usage, as this is really
>> ugly.
>> >> What is
>> >> >>> the suggested usage?
>> >> >>
>> >> >> Instantiate NIOFSDirectory directly and pass it to the
>> >> IndexReader.open()
>> >> >>
>> >> >> -Yonik
>> >> >>
>> >> >> ---------------------------------------------------------------------
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>> >> >>
>> >> >>
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> >
>> >> > -
>> >> >
>> >> > ---------------------------------------------------------------------
>> >> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
>> >> > For additional commands, e-mail: java-user-help@lucene.apache.org
>> >> >
>> >> >
>> >>
>> >> ---------------------------------------------------------------------
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>> >>
>> >>
>> >
>>
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>>
>>
>



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