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Date: Mon, 29 Nov 2010 23:46:14 +0300
Message-ID: <AANLkTikKZ+C_iV39=zkLYL9tycMrsbiZDxDUCSD71hHj@mail.gmail.com>
Subject: Re: Lucene-Solr-tests-only-3.x - Build # 1950 - Failure
From: Earwin Burrfoot <earwin@gmail.com>
To: dev@lucene.apache.org, yonik@lucidimagination.com
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Or you can make threadlocal RNGs.

On Mon, Nov 29, 2010 at 23:20, Yonik Seeley <yonik@lucidimagination.com> wr=
ote:
> On Mon, Nov 29, 2010 at 2:52 PM, Michael McCandless
> <lucene@mikemccandless.com> wrote:
>> Though why doesn't the random seed reproduce it?
>
> OK, I think I see why.
> For reproducibility, the same random number generator should never be
> used across different threads.
> RandomIndexWriter does though... (via MockIndexWriter.testPoint).
>
> =C2=A0public RandomIndexWriter(Random r, Directory dir, IndexWriterConfig
> c) throws IOException {
> =C2=A0 =C2=A0this.r =3D r;
> =C2=A0 =C2=A0w =3D new MockIndexWriter(r, dir, c);
>
> So something like this should work?
>
> =C2=A0 =C2=A0w =3D new MockIndexWriter(new Random(r.nextInt()), dir, c);
>
>
> -Yonik
> http://www.lucidimagination.com
>
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