Will do thanks
On Wed, Jan 11, 2012 at 3:37 PM, Michael McCandless <
luc...@mikemccandless.com> wrote:
> Yes, it's best to share one IndexSearcher/IndexReader across all
> threads... and if you ever find evidence this hurts concurrency then
> please post back :)
>
> Mike McCandless
>
> http://blo
Yes, it's best to share one IndexSearcher/IndexReader across all
threads... and if you ever find evidence this hurts concurrency then
please post back :)
Mike McCandless
http://blog.mikemccandless.com
On Wed, Jan 11, 2012 at 3:29 PM, Cheng wrote:
> Will do if I see a perf gain.
>
> The other is
Will do if I see a perf gain.
The other issue is that in each thread my apps will not only do indexing
but searching. That means I will have to pass through the ram directory
instance, along with the writer instance, to every thread so that the
searcher can be built on.
Should I create a same rea
Yes that would work fine but you should see a net perf loss by
doing so (once you include time to flush/sync the RAMDir to an FSDir).
If you see a perf gain then please report back!
Mike McCandless
http://blog.mikemccandless.com
On Wed, Jan 11, 2012 at 3:09 PM, Cheng wrote:
> Can I create
Can I create a RAMDirectory based writer and have it work cross all
threads? In the sense, I would like to use RAMDirectory every where and
have the RAMDirectory written to FSDirectory in the end.
I suppose that should work, right?
On Wed, Jan 11, 2012 at 2:31 PM, Michael McCandless <
luc...@mik
On Wed, Jan 11, 2012 at 1:32 PM, dyzc2010 wrote:
> Mike, do you mean if I create a FSDirectory based writer in first place, then
> the writer should be used in every thread rather than create a new
> RAMDirectory based writer in that thread?
Right.
> What about I do want to use RAMDirectory t
?
-- Original --
From: "Michael McCandless";
Date: Thu, Jan 12, 2012 02:11 AM
To: "java-user";
Subject: Re: Seem contradictive -- indexwriter in handling multiple threads
You shouldn't have to write first to intermediate RAMDirectorys
anymore just s
You shouldn't have to write first to intermediate RAMDirectorys
anymore just share a single IndexWriter instance across all of
your threads.
Mike McCandless
http://blog.mikemccandless.com
On Wed, Jan 11, 2012 at 12:19 PM, Cheng wrote:
> I have read a lot about IndexWriter and multi-threadin
I have read a lot about IndexWriter and multi-threading over the Internet.
It seems to me that the normal practice is:
1) use a same indexwriter instance for multiple threads;
2) create an individual RAMDirectory per threads;
3) use addIndexes(Directory[]) methods to add to a local drive folder al
