Re: Doc Caching

2010-04-20 Thread Erick Erickson
ing it it seems pointless. > > Chris > > - Original Message - From: "Michael McCandless" < > luc...@mikemccandless.com> > To: > Sent: Tuesday, April 20, 2010 2:17 AM > Subject: Re: Doc Caching > > > > No, Lucene doesn't. But the OS

Re: Doc Caching

2010-04-20 Thread Ian Lea
doing it it seems pointless. > > Chris > > - Original Message - From: "Michael McCandless" > > To: > Sent: Tuesday, April 20, 2010 2:17 AM > Subject: Re: Doc Caching > > > No, Lucene doesn't.  But the OS usually does (in is IO cache), > as

Re: Doc Caching

2010-04-19 Thread Chris B
Mike cheers for the reply. Is it worth setting up your own caching or letting the OS do it? I've setup a caching system, but if the OS is doing it it seems pointless. Chris - Original Message - From: "Michael McCandless" To: Sent: Tuesday, April 20, 2010 2:17 AM S

Re: Doc Caching

2010-04-19 Thread Michael McCandless
No, Lucene doesn't. But the OS usually does (in is IO cache), assuming there is spare RAM. The "only" things that are explicitly held in memory by Lucene are the norms ("boost bytes"), terms dict index, deletions bit vector and field cache (used eg when you sort by a field), I think. Mike On Fr