public virtual void TestExceptionDuringSync()
{
MockRAMDirectory dir = new MockRAMDirectory();
FailOnlyInSync failure = new FailOnlyInSync();
dir.FailOn(failure);
IndexWriter writer = new IndexWriter(dir, true, new WhitespaceAnalyzer());
failure.SetDoFail();
ConcurrentMergeScheduler cms = new ConcurrentMergeScheduler();
// We expect sync exceptions in the merge threads
cms.SetSuppressExceptions();
writer.SetMergeScheduler(cms);
writer.SetMaxBufferedDocs(2);
writer.SetMergeFactor(5);
for (int i = 0; i < 23; i++)
AddDoc(writer);
cms.Sync();
Assert.IsTrue(failure.didFail);
failure.ClearDoFail();
writer.Close();
IndexReader reader = IndexReader.Open(dir);
Assert.AreEqual(23, reader.NumDocs());
reader.Close();
dir.Close();
}
public virtual void TestImmediateDiskFullWithThreads()
{
int NUM_THREADS = 3;
for (int iter = 0; iter < 10; iter++)
{
MockRAMDirectory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, true, new WhitespaceAnalyzer());
ConcurrentMergeScheduler cms = new ConcurrentMergeScheduler();
// We expect disk full exceptions in the merge threads
cms.SetSuppressExceptions();
writer.SetMergeScheduler(cms);
writer.SetMaxBufferedDocs(2);
writer.SetMergeFactor(4);
dir.SetMaxSizeInBytes(4 * 1024 + 20 * iter);
IndexerThread[] threads = new IndexerThread[NUM_THREADS];
for (int i = 0; i < NUM_THREADS; i++)
threads[i] = new IndexerThread(this, writer, true);
for (int i = 0; i < NUM_THREADS; i++)
threads[i].Start();
for (int i = 0; i < NUM_THREADS; i++)
{
// Without fix for LUCENE-1130: one of the
// threads will hang
threads[i].Join();
Assert.IsTrue(threads[i].error == null, "hit unexpected Throwable");
}
try
{
writer.Close(false);
}
catch (System.IO.IOException ioe)
{
}
dir.Close();
}
}
// Runs test, with multiple threads, using the specific
// failure to trigger an IOException
public virtual void _testMultipleThreadsFailure(MockRAMDirectory.Failure failure)
{
int NUM_THREADS = 3;
for (int iter = 0; iter < 5; iter++)
{
MockRAMDirectory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
ConcurrentMergeScheduler cms = new ConcurrentMergeScheduler();
// We expect disk full exceptions in the merge threads
cms.SetSuppressExceptions();
writer.SetMergeScheduler(cms);
writer.SetMaxBufferedDocs(2);
writer.SetMergeFactor(4);
IndexerThread[] threads = new IndexerThread[NUM_THREADS];
for (int i = 0; i < NUM_THREADS; i++)
threads[i] = new IndexerThread(this, writer, true);
for (int i = 0; i < NUM_THREADS; i++)
threads[i].Start();
System.Threading.Thread.Sleep(new System.TimeSpan((System.Int64) 10000 * 10));
dir.FailOn(failure);
failure.SetDoFail();
for (int i = 0; i < NUM_THREADS; i++)
{
threads[i].Join();
Assert.IsTrue(threads[i].error == null, "hit unexpected Throwable");
}
bool success = false;
try
{
writer.Close(false);
success = true;
}
catch (System.IO.IOException ioe)
{
failure.ClearDoFail();
writer.Close(false);
}
if (success)
{
IndexReader reader = IndexReader.Open(dir);
for (int j = 0; j < reader.MaxDoc(); j++)
{
if (!reader.IsDeleted(j))
{
reader.Document(j);
reader.GetTermFreqVectors(j);
}
}
reader.Close();
}
dir.Close();
}
}
public virtual void TestCloseWithThreads()
{
int NUM_THREADS = 3;
for (int iter = 0; iter < 20; iter++)
{
MockRAMDirectory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
ConcurrentMergeScheduler cms = new ConcurrentMergeScheduler();
// We expect AlreadyClosedException
cms.SetSuppressExceptions();
writer.SetMergeScheduler(cms);
writer.SetMaxBufferedDocs(10);
writer.SetMergeFactor(4);
IndexerThread[] threads = new IndexerThread[NUM_THREADS];
for (int i = 0; i < NUM_THREADS; i++)
threads[i] = new IndexerThread(this, writer, false);
for (int i = 0; i < NUM_THREADS; i++)
threads[i].Start();
bool done = false;
while (!done)
{
System.Threading.Thread.Sleep(new System.TimeSpan((System.Int64) 10000 * 100));
for (int i = 0; i < NUM_THREADS; i++)
// only stop when at least one thread has added a doc
if (threads[i].addCount > 0)
{
done = true;
break;
}
}
writer.Close(false);
// Make sure threads that are adding docs are not hung:
for (int i = 0; i < NUM_THREADS; i++)
{
// Without fix for LUCENE-1130: one of the
// threads will hang
threads[i].Join();
if (threads[i].IsAlive)
Assert.Fail("thread seems to be hung");
}
// Quick test to make sure index is not corrupt:
IndexReader reader = IndexReader.Open(dir);
TermDocs tdocs = reader.TermDocs(new Term("field", "aaa"));
int count = 0;
while (tdocs.Next())
{
count++;
}
Assert.IsTrue(count > 0);
reader.Close();
dir.Close();
}
}