// 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());
ConcurrentMergeScheduler cms = new ConcurrentMergeScheduler();
// We expect disk full exceptions in the merge threads
cms.SetSuppressExceptions_ForNUnitTest();
writer.SetMergeScheduler(cms);
writer.SetMaxBufferedDocs(2);
writer.SetMergeFactor(4);
IndexerThread[] threads = new IndexerThread[NUM_THREADS];
//bool diskFull = false;
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();
try
{
System.Threading.Thread.Sleep(new System.TimeSpan((System.Int64) 10000 * 10));
}
catch (System.Threading.ThreadInterruptedException)
{
SupportClass.ThreadClass.Current().Interrupt();
}
dir.FailOn(failure);
failure.SetDoFail();
for (int i = 0; i < NUM_THREADS; i++)
{
while (true)
{
try
{
threads[i].Join();
break;
}
catch (System.Threading.ThreadInterruptedException)
{
SupportClass.ThreadClass.Current().Interrupt();
}
}
if (threads[i].IsAlive)
Assert.Fail("thread seems to be hung");
else
Assert.IsTrue(threads[i].error == null, "hit unexpected Throwable");
}
bool success = false;
try
{
writer.Close(false);
success = true;
}
catch (System.IO.IOException)
{
}
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 TestImmediateDiskFullWithThreads()
{
int NUM_THREADS = 3;
for (int iter = 0; iter < 10; iter++)
{
MockRAMDirectory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer());
ConcurrentMergeScheduler cms = new ConcurrentMergeScheduler();
// We expect disk full exceptions in the merge threads
cms.SetSuppressExceptions_ForNUnitTest();
writer.SetMergeScheduler(cms);
writer.SetMaxBufferedDocs(2);
writer.SetMergeFactor(4);
dir.SetMaxSizeInBytes(4 * 1024 + 20 * iter);
IndexerThread[] threads = new IndexerThread[NUM_THREADS];
//bool diskFull = false;
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++)
{
while (true)
{
try
{
// Without fix for LUCENE-1130: one of the
// threads will hang
threads[i].Join();
break;
}
catch (System.Threading.ThreadInterruptedException)
{
SupportClass.ThreadClass.Current().Interrupt();
}
}
if (threads[i].IsAlive)
Assert.Fail("thread seems to be hung");
else
Assert.IsTrue(threads[i].error == null, "hit unexpected Throwable");
}
try
{
writer.Close(false);
}
catch (System.IO.IOException)
{
}
dir.Close();
}
}