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 = new ArrayList<OpenBitSet>();
ArrayList<DocIdSet> docs = new ArrayList<DocIdSet>();
Random rand = new Random(System.currentTimeMillis());
int maxDoc = 350000;
for(int i=0; i < 3; ++i)
{
int numdocs = rand.nextInt(maxDoc);
ArrayList<Integer> nums = new
ArrayList<Integer>();
HashSet<Integer> seen = new HashSet<Integer>();
for (int j = 0; j < numdocs; j++)
{
int nextDoc = rand.nextInt(maxDoc);
if(seen.contains(nextDoc))
{
while(seen.contains(nextDoc))
{
nextDoc =
rand.nextInt(maxDoc);
}
}
nums.add(nextDoc);
seen.add(nextDoc);
}
Collections.sort(nums);
obs.add(createObs(nums, maxDoc));
docs.add(createDocSet(nums));
}
OpenBitSet base = obs.get(0);
for(int i = 1; i < obs.size(); ++i)
{
base.intersect(obs.get(i));
}
AndDocIdSet ands = new AndDocIdSet(docs);
long card1 = base.cardinality();
long card2 = ands.size();
System.out.println(card1+":"+card2);
assertEquals(card1, card2);
}
private OpenBitSet createObs(ArrayList<Integer> nums, int maxDoc) {
OpenBitSet bitSet = new OpenBitSet(maxDoc);
for(int num:nums)
bitSet.set(num);
return bitSet;
}
private DocIdSet createDocSet(ArrayList<Integer> nums) {
DocSet p4d = 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 = 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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