public virtual void TestNoOverMerge()
{
Directory dir = new RAMDirectory();
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
writer.SetMaxBufferedDocs(10);
writer.SetMergeFactor(10);
writer.SetMergePolicy(new LogDocMergePolicy(writer));
bool noOverMerge = false;
for (int i = 0; i < 100; i++)
{
AddDoc(writer);
CheckInvariants(writer);
if (writer.GetNumBufferedDocuments() + writer.GetSegmentCount() >= 18)
{
noOverMerge = true;
}
}
Assert.IsTrue(noOverMerge);
writer.Close();
}
private void CheckInvariants(IndexWriter writer)
{
_TestUtil.SyncConcurrentMerges(writer);
int maxBufferedDocs = writer.GetMaxBufferedDocs();
int mergeFactor = writer.GetMergeFactor();
int maxMergeDocs = writer.GetMaxMergeDocs();
int ramSegmentCount = writer.GetNumBufferedDocuments();
Assert.IsTrue(ramSegmentCount < maxBufferedDocs);
int lowerBound = -1;
int upperBound = maxBufferedDocs;
int numSegments = 0;
int segmentCount = writer.GetSegmentCount();
for (int i = segmentCount - 1; i >= 0; i--)
{
int docCount = writer.GetDocCount(i);
Assert.IsTrue(docCount > lowerBound);
if (docCount <= upperBound)
{
numSegments++;
}
else
{
if (upperBound * mergeFactor <= maxMergeDocs)
{
Assert.IsTrue(numSegments < mergeFactor);
}
do
{
lowerBound = upperBound;
upperBound *= mergeFactor;
}while (docCount > upperBound);
numSegments = 1;
}
}
if (upperBound * mergeFactor <= maxMergeDocs)
{
Assert.IsTrue(numSegments < mergeFactor);
}
System.String[] files = writer.GetDirectory().ListAll();
int segmentCfsCount = 0;
for (int i = 0; i < files.Length; i++)
{
if (files[i].EndsWith(".cfs"))
{
segmentCfsCount++;
}
}
Assert.AreEqual(segmentCount, segmentCfsCount);
}
private void CheckInvariants(IndexWriter writer)
{
writer.WaitForMerges();
int maxBufferedDocs = writer.GetMaxBufferedDocs();
int mergeFactor = writer.GetMergeFactor();
int maxMergeDocs = writer.GetMaxMergeDocs();
int ramSegmentCount = writer.GetNumBufferedDocuments();
Assert.IsTrue(ramSegmentCount < maxBufferedDocs);
int lowerBound = -1;
int upperBound = maxBufferedDocs;
int numSegments = 0;
int segmentCount = writer.GetSegmentCount();
for (int i = segmentCount - 1; i >= 0; i--)
{
int docCount = writer.GetDocCount(i);
Assert.IsTrue(docCount > lowerBound);
if (docCount <= upperBound)
{
numSegments++;
}
else
{
if (upperBound * mergeFactor <= maxMergeDocs)
{
Assert.IsTrue(numSegments < mergeFactor);
}
do
{
lowerBound = upperBound;
upperBound *= mergeFactor;
}while (docCount > upperBound);
numSegments = 1;
}
}
if (upperBound * mergeFactor <= maxMergeDocs)
{
Assert.IsTrue(numSegments < mergeFactor);
}
}
public virtual void TestNonRAMDelete()
{
for (int pass = 0; pass < 2; pass++)
{
bool autoCommit = (0 == pass);
Directory dir = new MockRAMDirectory();
IndexWriter modifier = new IndexWriter(dir, autoCommit, new WhitespaceAnalyzer(), true);
modifier.SetMaxBufferedDocs(2);
modifier.SetMaxBufferedDeleteTerms(2);
int id = 0;
int value_Renamed = 100;
for (int i = 0; i < 7; i++)
{
AddDoc(modifier, ++id, value_Renamed);
}
modifier.Commit();
Assert.AreEqual(0, modifier.GetNumBufferedDocuments());
Assert.IsTrue(0 < modifier.GetSegmentCount());
modifier.Commit();
IndexReader reader = IndexReader.Open(dir);
Assert.AreEqual(7, reader.NumDocs());
reader.Close();
modifier.DeleteDocuments(new Term("value", System.Convert.ToString(value_Renamed)));
modifier.Commit();
reader = IndexReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs());
reader.Close();
modifier.Close();
dir.Close();
}
}
public virtual void TestNonRAMDelete()
{
Directory dir = new MockRAMDirectory();
IndexWriter modifier = new IndexWriter(dir, new WhitespaceAnalyzer(), true,
IndexWriter.MaxFieldLength.UNLIMITED, null);
modifier.SetMaxBufferedDocs(2);
modifier.SetMaxBufferedDeleteTerms(2);
int id = 0;
int value_Renamed = 100;
for (int i = 0; i < 7; i++)
{
AddDoc(modifier, ++id, value_Renamed);
}
modifier.Commit(null);
Assert.AreEqual(0, modifier.GetNumBufferedDocuments());
Assert.IsTrue(0 < modifier.GetSegmentCount());
modifier.Commit(null);
IndexReader reader = IndexReader.Open(dir, true, null);
Assert.AreEqual(7, reader.NumDocs());
reader.Close();
modifier.DeleteDocuments(null, new Term("value", System.Convert.ToString(value_Renamed)));
modifier.Commit(null);
reader = IndexReader.Open(dir, true, null);
Assert.AreEqual(0, reader.NumDocs());
reader.Close();
modifier.Close();
dir.Close();
}
public virtual void TestNoOverMerge()
{
Directory dir = new RAMDirectory();
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
writer.SetMaxBufferedDocs(10);
writer.MergeFactor = 10;
writer.SetMergePolicy(new LogDocMergePolicy(writer));
bool noOverMerge = false;
for (int i = 0; i < 100; i++)
{
AddDoc(writer);
CheckInvariants(writer);
if (writer.GetNumBufferedDocuments() + writer.GetSegmentCount() >= 18)
{
noOverMerge = true;
}
}
Assert.IsTrue(noOverMerge);
writer.Close();
}
public virtual void TestNonRAMDelete()
{
for (int pass = 0; pass < 2; pass++)
{
bool autoCommit = (0 == pass);
Directory dir = new MockRAMDirectory();
IndexWriter modifier = new IndexWriter(dir, autoCommit, new WhitespaceAnalyzer(), true);
modifier.SetMaxBufferedDocs(2);
modifier.SetMaxBufferedDeleteTerms(2);
int id = 0;
int value_Renamed = 100;
for (int i = 0; i < 7; i++)
{
AddDoc(modifier, ++id, value_Renamed);
}
modifier.Commit();
Assert.AreEqual(0, modifier.GetNumBufferedDocuments());
Assert.IsTrue(0 < modifier.GetSegmentCount());
modifier.Commit();
IndexReader reader = IndexReader.Open(dir);
Assert.AreEqual(7, reader.NumDocs());
reader.Close();
modifier.DeleteDocuments(new Term("value", System.Convert.ToString(value_Renamed)));
modifier.Commit();
reader = IndexReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs());
reader.Close();
modifier.Close();
dir.Close();
}
}
private void CheckInvariants(IndexWriter writer)
{
writer.WaitForMerges();
int maxBufferedDocs = writer.GetMaxBufferedDocs();
int mergeFactor = writer.MergeFactor;
int maxMergeDocs = writer.MaxMergeDocs;
int ramSegmentCount = writer.GetNumBufferedDocuments();
Assert.IsTrue(ramSegmentCount < maxBufferedDocs);
int lowerBound = - 1;
int upperBound = maxBufferedDocs;
int numSegments = 0;
int segmentCount = writer.GetSegmentCount();
for (int i = segmentCount - 1; i >= 0; i--)
{
int docCount = writer.GetDocCount(i);
Assert.IsTrue(docCount > lowerBound);
if (docCount <= upperBound)
{
numSegments++;
}
else
{
if (upperBound * mergeFactor <= maxMergeDocs)
{
Assert.IsTrue(numSegments < mergeFactor, "maxMergeDocs=" + maxMergeDocs + "; numSegments=" + numSegments + "; upperBound=" + upperBound + "; mergeFactor=" + mergeFactor);
}
do
{
lowerBound = upperBound;
upperBound *= mergeFactor;
}
while (docCount > upperBound);
numSegments = 1;
}
}
if (upperBound * mergeFactor <= maxMergeDocs)
{
Assert.IsTrue(numSegments < mergeFactor);
}
}
private void CheckInvariants(IndexWriter writer)
{
_TestUtil.SyncConcurrentMerges(writer);
int maxBufferedDocs = writer.GetMaxBufferedDocs();
int mergeFactor = writer.GetMergeFactor();
int maxMergeDocs = writer.GetMaxMergeDocs();
int ramSegmentCount = writer.GetNumBufferedDocuments();
Assert.IsTrue(ramSegmentCount < maxBufferedDocs);
int lowerBound = - 1;
int upperBound = maxBufferedDocs;
int numSegments = 0;
int segmentCount = writer.GetSegmentCount();
for (int i = segmentCount - 1; i >= 0; i--)
{
int docCount = writer.GetDocCount(i);
Assert.IsTrue(docCount > lowerBound);
if (docCount <= upperBound)
{
numSegments++;
}
else
{
if (upperBound * mergeFactor <= maxMergeDocs)
{
Assert.IsTrue(numSegments < mergeFactor);
}
do
{
lowerBound = upperBound;
upperBound *= mergeFactor;
}
while (docCount > upperBound);
numSegments = 1;
}
}
if (upperBound * mergeFactor <= maxMergeDocs)
{
Assert.IsTrue(numSegments < mergeFactor);
}
System.String[] files = writer.GetDirectory().ListAll();
int segmentCfsCount = 0;
for (int i = 0; i < files.Length; i++)
{
if (files[i].EndsWith(".cfs"))
{
segmentCfsCount++;
}
}
Assert.AreEqual(segmentCount, segmentCfsCount);
}