private static BaseDirectoryWrapper WrapDirectory(Random random, Directory directory, bool bare)
{
if (Rarely(random))
{
directory = new NRTCachingDirectory(directory, random.NextDouble(), random.NextDouble());
}
if (Rarely(random))
{
double maxMBPerSec = 10 + 5 * (random.NextDouble() - 0.5);
if (LuceneTestCase.VERBOSE)
{
Console.WriteLine("LuceneTestCase: will rate limit output IndexOutput to " + maxMBPerSec + " MB/sec");
}
RateLimitedDirectoryWrapper rateLimitedDirectoryWrapper = new RateLimitedDirectoryWrapper(directory);
switch (random.Next(10))
{
case 3: // sometimes rate limit on flush
rateLimitedDirectoryWrapper.SetMaxWriteMBPerSec(maxMBPerSec, IOContext.UsageContext.FLUSH);
break;
case 2: // sometimes rate limit flush & merge
rateLimitedDirectoryWrapper.SetMaxWriteMBPerSec(maxMBPerSec, IOContext.UsageContext.FLUSH);
rateLimitedDirectoryWrapper.SetMaxWriteMBPerSec(maxMBPerSec, IOContext.UsageContext.MERGE);
break;
default:
rateLimitedDirectoryWrapper.SetMaxWriteMBPerSec(maxMBPerSec, IOContext.UsageContext.MERGE);
break;
}
directory = rateLimitedDirectoryWrapper;
}
if (bare)
{
BaseDirectoryWrapper @base = new BaseDirectoryWrapper(directory);
// LUCENENET TODO CloseAfterSuite(new IDisposableDirectory(@base, SuiteFailureMarker));
return @base;
}
else
{
MockDirectoryWrapper mock = new MockDirectoryWrapper(random, directory);
mock.Throttling = TEST_THROTTLING;
// LUCENENET TODO CloseAfterSuite(new IDisposableDirectory(mock, SuiteFailureMarker));
return mock;
}
}
// LUCENE-5461
public virtual void TestCRTReopen()
{
//test behaving badly
//should be high enough
int maxStaleSecs = 20;
//build crap data just to store it.
string s = " abcdefghijklmnopqrstuvwxyz ";
char[] chars = s.ToCharArray();
StringBuilder builder = new StringBuilder(2048);
for (int i = 0; i < 2048; i++)
{
builder.Append(chars[Random().Next(chars.Length)]);
}
string content = builder.ToString();
SnapshotDeletionPolicy sdp = new SnapshotDeletionPolicy(new KeepOnlyLastCommitDeletionPolicy());
Directory dir = new NRTCachingDirectory(NewFSDirectory(CreateTempDir("nrt")), 5, 128);
IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46, new MockAnalyzer(Random()));
config.SetIndexDeletionPolicy(sdp);
config.SetOpenMode(IndexWriterConfig.OpenMode_e.CREATE_OR_APPEND);
IndexWriter iw = new IndexWriter(dir, config);
SearcherManager sm = new SearcherManager(iw, true, new SearcherFactory());
TrackingIndexWriter tiw = new TrackingIndexWriter(iw);
ControlledRealTimeReopenThread<IndexSearcher> controlledRealTimeReopenThread = new ControlledRealTimeReopenThread<IndexSearcher>(tiw, sm, maxStaleSecs, 0);
controlledRealTimeReopenThread.SetDaemon(true);
controlledRealTimeReopenThread.Start();
IList<Thread> commitThreads = new List<Thread>();
for (int i = 0; i < 500; i++)
{
if (i > 0 && i % 50 == 0)
{
Thread commitThread = new Thread(new RunnableAnonymousInnerClassHelper(this, sdp, dir, iw));
commitThread.Start();
commitThreads.Add(commitThread);
}
Document d = new Document();
d.Add(new TextField("count", i + "", Field.Store.NO));
d.Add(new TextField("content", content, Field.Store.YES));
long start = DateTime.Now.Millisecond;
long l = tiw.AddDocument(d);
controlledRealTimeReopenThread.WaitForGeneration(l);
long wait = DateTime.Now.Millisecond - start;
Assert.IsTrue(wait < (maxStaleSecs * 1000), "waited too long for generation " + wait);
IndexSearcher searcher = sm.Acquire();
TopDocs td = searcher.Search(new TermQuery(new Term("count", i + "")), 10);
sm.Release(searcher);
Assert.AreEqual(1, td.TotalHits);
}
foreach (Thread commitThread in commitThreads)
{
commitThread.Join();
}
controlledRealTimeReopenThread.Dispose();
sm.Dispose();
iw.Dispose();
dir.Dispose();
}
