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Posted to dev@lucene.apache.org by Jason Rutherglen <ja...@gmail.com> on 2009/06/11 07:12:47 UTC
MMap certain files, leave the rest to the regular dir
On the topic of MMaping files. Would a Directory implementation
that transparently MMaps only certain files be interesting? It
could MMap files that are accessed frequently (term dict,
postings), as opposed to files such as docstores that are
accessed less frequently. This could be built using LUCENE-1618
so maybe this idea is just a benchmark.
RE: MMap certain files, leave the rest to the regular dir
Posted by Uwe Schindler <uw...@thetaphi.de>.
This was my first idea, when I read the subject. The solution is
FileSwitchDirectory.
Uwe
-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de
> -----Original Message-----
> From: Michael McCandless [mailto:lucene@mikemccandless.com]
> Sent: Thursday, June 11, 2009 11:25 AM
> To: java-dev@lucene.apache.org
> Subject: Re: MMap certain files, leave the rest to the regular dir
>
> Could we use FileSwitchDirectory to achieve that?
>
> Mike
>
> On Thu, Jun 11, 2009 at 1:12 AM, Jason
> Rutherglen<ja...@gmail.com> wrote:
> > On the topic of MMaping files. Would a Directory implementation
> > that transparently MMaps only certain files be interesting? It
> > could MMap files that are accessed frequently (term dict,
> > postings), as opposed to files such as docstores that are
> > accessed less frequently. This could be built using LUCENE-1618
> > so maybe this idea is just a benchmark.
> >
>
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Re: MMap certain files, leave the rest to the regular dir
Posted by Michael McCandless <lu...@mikemccandless.com>.
Could we use FileSwitchDirectory to achieve that?
Mike
On Thu, Jun 11, 2009 at 1:12 AM, Jason
Rutherglen<ja...@gmail.com> wrote:
> On the topic of MMaping files. Would a Directory implementation
> that transparently MMaps only certain files be interesting? It
> could MMap files that are accessed frequently (term dict,
> postings), as opposed to files such as docstores that are
> accessed less frequently. This could be built using LUCENE-1618
> so maybe this idea is just a benchmark.
>
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