public virtual void TestMaybeRefreshBlockingLock()
{
// make sure that maybeRefreshBlocking releases the lock, otherwise other
// threads cannot obtain it.
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir);
w.Dispose();
SearcherManager sm = new SearcherManager(dir, null);
ThreadClass t = new ThreadAnonymousInnerClassHelper2(this, sm);
t.Start();
t.Join();
// if maybeRefreshBlocking didn't release the lock, this will fail.
Assert.IsTrue(sm.MaybeRefresh(), "failde to obtain the refreshLock!");
sm.Dispose();
dir.Dispose();
}
/*
* LUCENE-3528 - NRTManager hangs in certain situations
*/
public virtual void TestThreadStarvationNoDeleteNRTReader()
{
IndexWriterConfig conf = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random()));
conf.SetMergePolicy(Random().NextBoolean() ? NoMergePolicy.COMPOUND_FILES : NoMergePolicy.NO_COMPOUND_FILES);
Directory d = NewDirectory();
CountDownLatch latch = new CountDownLatch(1);
CountDownLatch signal = new CountDownLatch(1);
LatchedIndexWriter _writer = new LatchedIndexWriter(d, conf, latch, signal);
TrackingIndexWriter writer = new TrackingIndexWriter(_writer);
SearcherManager manager = new SearcherManager(_writer, false, null);
Document doc = new Document();
doc.Add(NewTextField("test", "test", Field.Store.YES));
writer.AddDocument(doc);
manager.MaybeRefresh();
ThreadClass t = new ThreadAnonymousInnerClassHelper(this, latch, signal, writer, manager);
t.Start();
_writer.WaitAfterUpdate = true; // wait in addDocument to let some reopens go through
long lastGen = writer.UpdateDocument(new Term("foo", "bar"), doc); // once this returns the doc is already reflected in the last reopen
Assert.IsFalse(manager.SearcherCurrent); // false since there is a delete in the queue
IndexSearcher searcher = manager.Acquire();
try
{
Assert.AreEqual(2, searcher.IndexReader.NumDocs());
}
finally
{
manager.Release(searcher);
}
ControlledRealTimeReopenThread<IndexSearcher> thread = new ControlledRealTimeReopenThread<IndexSearcher>(writer, manager, 0.01, 0.01);
thread.Start(); // start reopening
if (VERBOSE)
{
Console.WriteLine("waiting now for generation " + lastGen);
}
AtomicBoolean finished = new AtomicBoolean(false);
ThreadClass waiter = new ThreadAnonymousInnerClassHelper2(this, lastGen, thread, finished);
waiter.Start();
manager.MaybeRefresh();
waiter.Join(1000);
if (!finished.Get())
{
waiter.Interrupt();
Assert.Fail("thread deadlocked on waitForGeneration");
}
thread.Dispose();
thread.Join();
IOUtils.Close(manager, _writer, d);
}