Understood. Thanks! :-) -glen
2008/12/4 John Wang <[EMAIL PROTECTED]>: > NIOFSDirectory.getDirectory simple calls the static method on the parent > class: FSDirectory.getDirectory. > Which returns an instance of FSDirectory. > > IMO: NIOFSDirectory solves concurrent read problems, generally you don't > want concurrent writes. > > -John > > On Thu, Dec 4, 2008 at 2:44 PM, Glen Newton <[EMAIL PROTECTED]> wrote: > >> Am I missing something here? >> >> Why not use: >> IndexWriter writer = new IndexWriter(NIOFSDirectory.getDirectory(new >> File(filename), analyzer, true); >> >> Another question: is NIOFSDirectory to be used with IndexWriter? If >> no, could someone explain? >> >> thanks, >> -glen >> >> >> 2008/12/4 John Wang <[EMAIL PROTECTED]>: >> > Thanks! >> > -John >> > >> > On Thu, Dec 4, 2008 at 2:16 PM, Yonik Seeley <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]> >> wrote: >> >> > >> >> >> On Thu, Dec 4, 2008 at 4:32 PM, Glen Newton <[EMAIL PROTECTED]> >> >> 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 <[EMAIL PROTECTED]>: >> >> >> >> On Thu, Dec 4, 2008 at 4:11 PM, John Wang <[EMAIL PROTECTED]> >> >> 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 >> >> >> >> >> >> >> >> >> --------------------------------------------------------------------- >> >> >> >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> >> >> >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> >> >> >> >> >> >> >> >> >> > >> >> >> > >> >> >> > >> >> >> > -- >> >> >> > >> >> >> > - >> >> >> > >> >> >> > >> --------------------------------------------------------------------- >> >> >> > To unsubscribe, e-mail: [EMAIL PROTECTED] >> >> >> > For additional commands, e-mail: [EMAIL PROTECTED] >> >> >> > >> >> >> > >> >> >> >> >> >> --------------------------------------------------------------------- >> >> >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> >> >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> >> >> >> >> >> >> > >> >> >> >> --------------------------------------------------------------------- >> >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> >> >> >> > >> >> >> >> -- >> >> - >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > -- - --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
