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Subject: RE: kamikaze
Date: Thu, 30 Apr 2009 09:23:57 -0400
Message-ID: <9008E1E80EE8A340BACCA3DFF41B21562A505D@GLGNYEXBE02.glgroup.com>
In-Reply-To: <23307098.post@talk.nabble.com>
Thread-Topic: kamikaze
thread-index: AcnJP5ZKfEqAbL9USk6vktl0GnSINwAVs9yg
From: Michael Mastroianni <MMastroianni@glgroup.com>
To: <java-user@lucene.apache.org>

Hi Anmol--

Thanks for bringing up the version I was using: when I switched back to
the official jar file, this test passed. The correctness problem only
seems to exist in the snapshot I grabbed.

The only reason I started using a snapshot was that the jar file had
line numbers turned off in the compilation, and no source attachment.
Would it be possible for you to make a version of the jar file with line
numbers turned on, and a source attachment, for your next release?
Without that, it's pretty nearly impossible to debug problems like the
NPE regression.

regards,
Michael

-----Original Message-----
From: molz [mailto:anmol.bhasin@gmail.com] =

Sent: Wednesday, April 29, 2009 10:58 PM
To: java-user@lucene.apache.org
Subject: RE: kamikaze


  =

Hi Michael,

2 Questions. =


1. What version of Kamikaze are you running with?
2. Can you try the snippet below and let me know if it fails ? I ran it
20
times and it did not fail. Maybe there is some difference in the
utitlity
methods you have ? I am still trying to track down if anything is off at
my
end but does not seem to be.

    public void testMultipleIntersections() =

    { =

            ArrayList<OpenBitSet> obs =3D new ArrayList<OpenBitSet>(); =

            ArrayList<DocIdSet> docs =3D new ArrayList<DocIdSet>(); =

        Random rand =3D new Random(System.currentTimeMillis()); =

            int maxDoc =3D 350000; =

            for(int i=3D0; i < 3; ++i) =

            { =

                    int numdocs =3D rand.nextInt(maxDoc); =

                    ArrayList<Integer> nums =3D new =

ArrayList<Integer>(); =

                    HashSet<Integer> seen =3D new HashSet<Integer>(); =

                    for (int j =3D 0; j < numdocs; j++) =

                { =

                            int nextDoc =3D rand.nextInt(maxDoc); =

                            if(seen.contains(nextDoc)) =

                            { =

                                    while(seen.contains(nextDoc)) =

                                    { =

                                            nextDoc =3D =

rand.nextInt(maxDoc); =

                                    } =

                            } =

                            nums.add(nextDoc); =

                            seen.add(nextDoc); =

                } =

                    Collections.sort(nums); =

                    obs.add(createObs(nums, maxDoc)); =

                    docs.add(createDocSet(nums)); =

            } =

            OpenBitSet base =3D obs.get(0); =

            for(int i =3D 1; i < obs.size(); ++i) =

            { =

                    base.intersect(obs.get(i)); =

            } =

            =

            AndDocIdSet ands =3D new AndDocIdSet(docs); =

            long card1 =3D base.cardinality(); =

            long card2 =3D ands.size(); =

            System.out.println(card1+":"+card2);
            assertEquals(card1, card2); =

    } =


    private OpenBitSet createObs(ArrayList<Integer> nums, int maxDoc) {
      OpenBitSet bitSet =3D new OpenBitSet(maxDoc);
      for(int num:nums)
        bitSet.set(num);
      return bitSet;
    }
    =

    private DocIdSet createDocSet(ArrayList<Integer> nums) {
      DocSet p4d =3D DocSetFactory.getDocSetInstance(0, 35000000, 200000,
          DocSetFactory.FOCUS.OPTIMAL);
      for(int num:nums)
       p4d.addDoc(num);
      return p4d;
    }

I even tried with the following =


  private DocIdSet createDocSet(ArrayList<Integer> nums) {
      P4DDocIdSet p4d =3D new P4DDocIdSet();
      for(int num:nums)
       p4d.addDoc(num);
      return p4d;
    }


 The NPE you mention in the previous emails has been identified as a bug
and
will be fixed in the next release (in a day or two). =


Thanks,
Anmol


-- =

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http://www.nabble.com/kamikaze-tp23224760p23307098.html
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