public virtual void TestStressMultiThreading()
{
Directory dir = NewDirectory();
IndexWriterConfig conf = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random));
IndexWriter writer = new IndexWriter(dir, conf);
// create index
int numThreads = TestUtil.NextInt32(Random, 3, 6);
int numDocs = AtLeast(2000);
for (int i = 0; i < numDocs; i++)
{
Document doc = new Document();
doc.Add(new StringField("id", "doc" + i, Store.NO));
double group = Random.NextDouble();
string g;
if (group < 0.1)
{
g = "g0";
}
else if (group < 0.5)
{
g = "g1";
}
else if (group < 0.8)
{
g = "g2";
}
else
{
g = "g3";
}
doc.Add(new StringField("updKey", g, Store.NO));
for (int j = 0; j < numThreads; j++)
{
long value = Random.Next();
doc.Add(new BinaryDocValuesField("f" + j, TestBinaryDocValuesUpdates.ToBytes(value)));
doc.Add(new NumericDocValuesField("cf" + j, value * 2)); // control, always updated to f * 2
}
writer.AddDocument(doc);
}
CountdownEvent done = new CountdownEvent(numThreads);
AtomicInt32 numUpdates = new AtomicInt32(AtLeast(100));
// same thread updates a field as well as reopens
ThreadJob[] threads = new ThreadJob[numThreads];
for (int i = 0; i < threads.Length; i++)
{
string f = "f" + i;
string cf = "cf" + i;
threads[i] = new ThreadAnonymousClass(this, "UpdateThread-" + i, writer, numDocs, done, numUpdates, f, cf);
}
foreach (ThreadJob t in threads)
{
t.Start();
}
done.Wait();
writer.Dispose();
DirectoryReader reader = DirectoryReader.Open(dir);
BytesRef scratch = new BytesRef();
foreach (AtomicReaderContext context in reader.Leaves)
{
AtomicReader r = context.AtomicReader;
for (int i = 0; i < numThreads; i++)
{
BinaryDocValues bdv = r.GetBinaryDocValues("f" + i);
NumericDocValues control = r.GetNumericDocValues("cf" + i);
IBits docsWithBdv = r.GetDocsWithField("f" + i);
IBits docsWithControl = r.GetDocsWithField("cf" + i);
IBits liveDocs = r.LiveDocs;
for (int j = 0; j < r.MaxDoc; j++)
{
if (liveDocs is null || liveDocs.Get(j))
{
Assert.AreEqual(docsWithBdv.Get(j), docsWithControl.Get(j));
if (docsWithBdv.Get(j))
{
long ctrlValue = control.Get(j);
long bdvValue = TestBinaryDocValuesUpdates.GetValue(bdv, j, scratch) * 2;
// if (ctrlValue != bdvValue) {
// System.out.println("seg=" + r + ", f=f" + i + ", doc=" + j + ", group=" + r.Document(j).Get("updKey") + ", ctrlValue=" + ctrlValue + ", bdvBytes=" + scratch);
// }
Assert.AreEqual(ctrlValue, bdvValue);
}
}
}
}
}
reader.Dispose();
dir.Dispose();
}
