本文整理汇总了C#中Lucene.Net.Index.IndexWriter.Rollback方法的典型用法代码示例。如果您正苦于以下问题：C# IndexWriter.Rollback方法的具体用法？C# IndexWriter.Rollback怎么用？C# IndexWriter.Rollback使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Lucene.Net.Index.IndexWriter的用法示例。
在下文中一共展示了IndexWriter.Rollback方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: TestRollbackIntegrityWithBufferFlush
public virtual void TestRollbackIntegrityWithBufferFlush()
{
Directory dir = NewDirectory();
RandomIndexWriter rw = new RandomIndexWriter(Random(), dir);
for (int i = 0; i < 5; i++)
{
Document doc = new Document();
doc.Add(NewStringField("pk", Convert.ToString(i), Field.Store.YES));
rw.AddDocument(doc);
}
rw.Dispose();
// If buffer size is small enough to cause a flush, errors ensue...
IndexWriter w = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(2).SetOpenMode(IndexWriterConfig.OpenMode_e.APPEND));
for (int i = 0; i < 3; i++)
{
Document doc = new Document();
string value = Convert.ToString(i);
doc.Add(NewStringField("pk", value, Field.Store.YES));
doc.Add(NewStringField("text", "foo", Field.Store.YES));
w.UpdateDocument(new Term("pk", value), doc);
}
w.Rollback();
IndexReader r = DirectoryReader.Open(dir);
Assert.AreEqual(5, r.NumDocs, "index should contain same number of docs post rollback");
r.Dispose();
dir.Dispose();
}示例2: TestRollbackIntegrityWithBufferFlush
public void TestRollbackIntegrityWithBufferFlush()
{
Directory dir = new MockRAMDirectory();
IndexWriter w = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
for (int i = 0; i < 5; i++)
{
Document doc = new Document();
doc.Add(new Field("pk", i.ToString(), Field.Store.YES, Field.Index.ANALYZED_NO_NORMS));
w.AddDocument(doc);
}
w.Close();
// If buffer size is small enough to cause a flush, errors ensue...
w = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
w.SetMaxBufferedDocs(2);
Term pkTerm = new Term("pk", "");
for (int i = 0; i < 3; i++)
{
Document doc = new Document();
String value = i.ToString();
doc.Add(new Field("pk", value, Field.Store.YES, Field.Index.ANALYZED_NO_NORMS));
doc.Add(new Field("text", "foo", Field.Store.YES, Field.Index.ANALYZED_NO_NORMS));
w.UpdateDocument(pkTerm.CreateTerm(value), doc);
}
w.Rollback();
IndexReader r = IndexReader.Open(dir, true);
Assert.AreEqual(5, r.NumDocs(), "index should contain same number of docs post rollback");
r.Close();
dir.Close();
}示例3: TestUpdateOldSegments
public virtual void TestUpdateOldSegments()
{
Codec[] oldCodecs = new Codec[] { new Lucene40RWCodec(), new Lucene41RWCodec(), new Lucene42RWCodec(), new Lucene45RWCodec() };
Directory dir = NewDirectory();
bool oldValue = OLD_FORMAT_IMPERSONATION_IS_ACTIVE;
// create a segment with an old Codec
IndexWriterConfig conf = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random()));
conf.SetCodec(oldCodecs[Random().Next(oldCodecs.Length)]);
OLD_FORMAT_IMPERSONATION_IS_ACTIVE = true;
IndexWriter writer = new IndexWriter(dir, conf);
Document doc = new Document();
doc.Add(new StringField("id", "doc", Store.NO));
doc.Add(new NumericDocValuesField("f", 5));
writer.AddDocument(doc);
writer.Dispose();
conf = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random()));
writer = new IndexWriter(dir, conf);
writer.UpdateNumericDocValue(new Term("id", "doc"), "f", 4L);
OLD_FORMAT_IMPERSONATION_IS_ACTIVE = false;
try
{
writer.Dispose();
Assert.Fail("should not have succeeded to update a segment written with an old Codec");
}
catch (System.NotSupportedException e)
{
writer.Rollback();
}
finally
{
OLD_FORMAT_IMPERSONATION_IS_ACTIVE = oldValue;
}
dir.Dispose();
}示例4: DoWork
public override void DoWork()
{
IndexWriter writer1 = new IndexWriter(Dir1, ((IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(3)).SetMergeScheduler(new ConcurrentMergeScheduler()).SetMergePolicy(NewLogMergePolicy(2)));
((ConcurrentMergeScheduler)writer1.Config.MergeScheduler).SetSuppressExceptions();
// Intentionally use different params so flush/merge
// happen @ different times
IndexWriter writer2 = new IndexWriter(Dir2, ((IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(2)).SetMergeScheduler(new ConcurrentMergeScheduler()).SetMergePolicy(NewLogMergePolicy(3)));
((ConcurrentMergeScheduler)writer2.Config.MergeScheduler).SetSuppressExceptions();
Update(writer1);
Update(writer2);
DoFail = true;
try
{
lock (@lock)
{
try
{
writer1.PrepareCommit();
}
catch (Exception t)
{
writer1.Rollback();
writer2.Rollback();
return;
}
try
{
writer2.PrepareCommit();
}
catch (Exception t)
{
writer1.Rollback();
writer2.Rollback();
return;
}
writer1.Commit();
writer2.Commit();
}
}
finally
{
DoFail = false;
}
writer1.Dispose();
writer2.Dispose();
}示例5: TestDeleteAllNRT
public virtual void TestDeleteAllNRT()
{
Directory dir = new MockRAMDirectory();
IndexWriter modifier = new IndexWriter(dir, false, 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();
IndexReader reader = modifier.GetReader();
Assert.AreEqual(7, reader.NumDocs());
reader.Close();
AddDoc(modifier, ++id, value_Renamed);
AddDoc(modifier, ++id, value_Renamed);
// Delete all
modifier.DeleteAll();
reader = modifier.GetReader();
Assert.AreEqual(0, reader.NumDocs());
reader.Close();
// Roll it back
modifier.Rollback();
modifier.Close();
// Validate that the docs are still there
reader = IndexReader.Open(dir);
Assert.AreEqual(7, reader.NumDocs());
reader.Close();
dir.Close();
}示例6: DoTestOperationsOnDiskFull
//.........这里部分代码省略.........
{
done = true;
}
}
catch (IOException e)
{
if (VERBOSE)
{
Console.WriteLine(" hit IOException: " + e);
Console.WriteLine(e.StackTrace);
}
err = e;
if (1 == x)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
Assert.Fail(testName + " hit IOException after disk space was freed up");
}
}
// prevent throwing a random exception here!!
double randomIOExceptionRate = dir.RandomIOExceptionRate;
long maxSizeInBytes = dir.MaxSizeInBytes;
dir.RandomIOExceptionRate = 0.0;
dir.RandomIOExceptionRateOnOpen = 0.0;
dir.MaxSizeInBytes = 0;
if (!success)
{
// Must force the close else the writer can have
// open files which cause exc in MockRAMDir.close
if (VERBOSE)
{
Console.WriteLine("TEST: now rollback");
}
modifier.Rollback();
}
// If the close() succeeded, make sure there are
// no unreferenced files.
if (success)
{
TestUtil.CheckIndex(dir);
TestIndexWriter.AssertNoUnreferencedFiles(dir, "after writer.close");
}
dir.RandomIOExceptionRate = randomIOExceptionRate;
dir.MaxSizeInBytes = maxSizeInBytes;
// Finally, verify index is not corrupt, and, if
// we succeeded, we see all docs changed, and if
// we failed, we see either all docs or no docs
// changed (transactional semantics):
IndexReader newReader = null;
try
{
newReader = DirectoryReader.Open(dir);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
Assert.Fail(testName + ":exception when creating IndexReader after disk full during close: " + e);
}
IndexSearcher searcher = NewSearcher(newReader);
ScoreDoc[] hits = null;
try
{示例7: TestDeleteAllNRT
public virtual void TestDeleteAllNRT()
{
Directory dir = NewDirectory();
IndexWriter modifier = new IndexWriter(dir, (IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random(), MockTokenizer.WHITESPACE, false)).SetMaxBufferedDocs(2).SetMaxBufferedDeleteTerms(2));
int id = 0;
int value = 100;
for (int i = 0; i < 7; i++)
{
AddDoc(modifier, ++id, value);
}
modifier.Commit();
IndexReader reader = modifier.Reader;
Assert.AreEqual(7, reader.NumDocs);
reader.Dispose();
AddDoc(modifier, ++id, value);
AddDoc(modifier, ++id, value);
// Delete all
modifier.DeleteAll();
reader = modifier.Reader;
Assert.AreEqual(0, reader.NumDocs);
reader.Dispose();
// Roll it back
modifier.Rollback();
modifier.Dispose();
// Validate that the docs are still there
reader = DirectoryReader.Open(dir);
Assert.AreEqual(7, reader.NumDocs);
reader.Dispose();
dir.Dispose();
}示例8: TestPrepareCommitRollback
public virtual void TestPrepareCommitRollback()
{
Directory dir = NewDirectory();
if (dir is MockDirectoryWrapper)
{
((MockDirectoryWrapper)dir).PreventDoubleWrite = false;
}
IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(2).SetMergePolicy(NewLogMergePolicy(5)));
writer.Commit();
for (int i = 0; i < 23; i++)
{
TestIndexWriter.AddDoc(writer);
}
DirectoryReader reader = DirectoryReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs);
writer.PrepareCommit();
IndexReader reader2 = DirectoryReader.Open(dir);
Assert.AreEqual(0, reader2.NumDocs);
writer.Rollback();
IndexReader reader3 = DirectoryReader.OpenIfChanged(reader);
Assert.IsNull(reader3);
Assert.AreEqual(0, reader.NumDocs);
Assert.AreEqual(0, reader2.NumDocs);
reader.Dispose();
reader2.Dispose();
writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())));
for (int i = 0; i < 17; i++)
{
TestIndexWriter.AddDoc(writer);
}
reader = DirectoryReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs);
reader.Dispose();
writer.PrepareCommit();
reader = DirectoryReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs);
reader.Dispose();
writer.Commit();
reader = DirectoryReader.Open(dir);
Assert.AreEqual(17, reader.NumDocs);
reader.Dispose();
writer.Dispose();
dir.Dispose();
}示例9: TestOpenPriorSnapshot
public virtual void TestOpenPriorSnapshot()
{
// Never deletes a commit
KeepAllDeletionPolicy policy = new KeepAllDeletionPolicy(this);
Directory dir = new MockRAMDirectory();
policy.dir = dir;
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), policy, IndexWriter.MaxFieldLength.LIMITED);
writer.SetMaxBufferedDocs(2);
for (int i = 0; i < 10; i++)
{
AddDoc(writer);
if ((1 + i) % 2 == 0)
writer.Commit();
}
writer.Close();
System.Collections.ICollection commits = IndexReader.ListCommits(dir);
Assert.AreEqual(6, commits.Count);
IndexCommit lastCommit = null;
System.Collections.IEnumerator it = commits.GetEnumerator();
while (it.MoveNext())
{
IndexCommit commit = (IndexCommit) it.Current;
if (lastCommit == null || commit.GetGeneration() > lastCommit.GetGeneration())
lastCommit = commit;
}
Assert.IsTrue(lastCommit != null);
// Now add 1 doc and optimize
writer = new IndexWriter(dir, new WhitespaceAnalyzer(), policy, IndexWriter.MaxFieldLength.LIMITED);
AddDoc(writer);
Assert.AreEqual(11, writer.NumDocs());
writer.Optimize();
writer.Close();
Assert.AreEqual(7, IndexReader.ListCommits(dir).Count);
// Now open writer on the commit just before optimize:
writer = new IndexWriter(dir, new WhitespaceAnalyzer(), policy, IndexWriter.MaxFieldLength.LIMITED, lastCommit);
Assert.AreEqual(10, writer.NumDocs());
// Should undo our rollback:
writer.Rollback();
IndexReader r = IndexReader.Open(dir);
// Still optimized, still 11 docs
Assert.IsTrue(r.IsOptimized());
Assert.AreEqual(11, r.NumDocs());
r.Close();
writer = new IndexWriter(dir, new WhitespaceAnalyzer(), policy, IndexWriter.MaxFieldLength.LIMITED, lastCommit);
Assert.AreEqual(10, writer.NumDocs());
// Commits the rollback:
writer.Close();
// Now 8 because we made another commit
Assert.AreEqual(8, IndexReader.ListCommits(dir).Count);
r = IndexReader.Open(dir);
// Not optimized because we rolled it back, and now only
// 10 docs
Assert.IsTrue(!r.IsOptimized());
Assert.AreEqual(10, r.NumDocs());
r.Close();
// Reoptimize
writer = new IndexWriter(dir, new WhitespaceAnalyzer(), policy, IndexWriter.MaxFieldLength.LIMITED);
writer.Optimize();
writer.Close();
r = IndexReader.Open(dir);
Assert.IsTrue(r.IsOptimized());
Assert.AreEqual(10, r.NumDocs());
r.Close();
// Now open writer on the commit just before optimize,
// but this time keeping only the last commit:
writer = new IndexWriter(dir, new WhitespaceAnalyzer(), new KeepOnlyLastCommitDeletionPolicy(), IndexWriter.MaxFieldLength.LIMITED, lastCommit);
Assert.AreEqual(10, writer.NumDocs());
// Reader still sees optimized index, because writer
// opened on the prior commit has not yet committed:
r = IndexReader.Open(dir);
Assert.IsTrue(r.IsOptimized());
Assert.AreEqual(10, r.NumDocs());
r.Close();
writer.Close();
// Now reader sees unoptimized index:
r = IndexReader.Open(dir);
Assert.IsTrue(!r.IsOptimized());
Assert.AreEqual(10, r.NumDocs());
r.Close();
dir.Close();
}示例10: TestCommitOnCloseAbort
public virtual void TestCommitOnCloseAbort()
{
Directory dir = NewDirectory();
IndexWriter writer = new IndexWriter(dir, (IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(10));
for (int i = 0; i < 14; i++)
{
TestIndexWriter.AddDoc(writer);
}
writer.Dispose();
Term searchTerm = new Term("content", "aaa");
IndexReader reader = DirectoryReader.Open(dir);
IndexSearcher searcher = NewSearcher(reader);
ScoreDoc[] hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(14, hits.Length, "first number of hits");
reader.Dispose();
writer = new IndexWriter(dir, (IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetOpenMode(OpenMode_e.APPEND).SetMaxBufferedDocs(10));
for (int j = 0; j < 17; j++)
{
TestIndexWriter.AddDoc(writer);
}
// Delete all docs:
writer.DeleteDocuments(searchTerm);
reader = DirectoryReader.Open(dir);
searcher = NewSearcher(reader);
hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(14, hits.Length, "reader incorrectly sees changes from writer");
reader.Dispose();
// Now, close the writer:
writer.Rollback();
TestIndexWriter.AssertNoUnreferencedFiles(dir, "unreferenced files remain after rollback()");
reader = DirectoryReader.Open(dir);
searcher = NewSearcher(reader);
hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(14, hits.Length, "saw changes after writer.abort");
reader.Dispose();
// Now make sure we can re-open the index, add docs,
// and all is good:
writer = new IndexWriter(dir, (IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetOpenMode(OpenMode_e.APPEND).SetMaxBufferedDocs(10));
// On abort, writer in fact may write to the same
// segments_N file:
if (dir is MockDirectoryWrapper)
{
((MockDirectoryWrapper)dir).PreventDoubleWrite = false;
}
for (int i = 0; i < 12; i++)
{
for (int j = 0; j < 17; j++)
{
TestIndexWriter.AddDoc(writer);
}
IndexReader r = DirectoryReader.Open(dir);
searcher = NewSearcher(r);
hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(14, hits.Length, "reader incorrectly sees changes from writer");
r.Dispose();
}
writer.Dispose();
IndexReader ir = DirectoryReader.Open(dir);
searcher = NewSearcher(ir);
hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(218, hits.Length, "didn't see changes after close");
ir.Dispose();
dir.Dispose();
}示例11: TestAddDocumentOnDiskFull
public virtual void TestAddDocumentOnDiskFull()
{
for (int pass = 0; pass < 2; pass++)
{
if (VERBOSE)
{
Console.WriteLine("TEST: pass=" + pass);
}
bool doAbort = pass == 1;
long diskFree = TestUtil.NextInt(Random(), 100, 300);
while (true)
{
if (VERBOSE)
{
Console.WriteLine("TEST: cycle: diskFree=" + diskFree);
}
MockDirectoryWrapper dir = new MockDirectoryWrapper(Random(), new RAMDirectory());
dir.MaxSizeInBytes = diskFree;
IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())));
MergeScheduler ms = writer.Config.MergeScheduler;
if (ms is ConcurrentMergeScheduler)
{
// this test intentionally produces exceptions
// in the threads that CMS launches; we don't
// want to pollute test output with these.
((ConcurrentMergeScheduler)ms).SetSuppressExceptions();
}
bool hitError = false;
try
{
for (int i = 0; i < 200; i++)
{
AddDoc(writer);
}
if (VERBOSE)
{
Console.WriteLine("TEST: done adding docs; now commit");
}
writer.Commit();
}
catch (IOException e)
{
if (VERBOSE)
{
Console.WriteLine("TEST: exception on addDoc");
Console.WriteLine(e.StackTrace);
}
hitError = true;
}
if (hitError)
{
if (doAbort)
{
if (VERBOSE)
{
Console.WriteLine("TEST: now rollback");
}
writer.Rollback();
}
else
{
try
{
if (VERBOSE)
{
Console.WriteLine("TEST: now close");
}
writer.Dispose();
}
catch (IOException e)
{
if (VERBOSE)
{
Console.WriteLine("TEST: exception on close; retry w/ no disk space limit");
Console.WriteLine(e.StackTrace);
}
dir.MaxSizeInBytes = 0;
writer.Dispose();
}
}
//TestUtil.SyncConcurrentMerges(ms);
if (TestUtil.AnyFilesExceptWriteLock(dir))
{
TestIndexWriter.AssertNoUnreferencedFiles(dir, "after disk full during addDocument");
// Make sure reader can open the index:
DirectoryReader.Open(dir).Dispose();
}
dir.Dispose();
// Now try again w/ more space:
diskFree += TEST_NIGHTLY ? TestUtil.NextInt(Random(), 400, 600) : TestUtil.NextInt(Random(), 3000, 5000);
}
else
{
//.........这里部分代码省略.........
示例12: TestPrepareCommitRollback
public virtual void TestPrepareCommitRollback()
{
MockRAMDirectory dir = new MockRAMDirectory();
dir.SetPreventDoubleWrite(false);
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
writer.SetMaxBufferedDocs(2);
writer.SetMergeFactor(5);
for (int i = 0; i < 23; i++)
AddDoc(writer);
IndexReader reader = IndexReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs());
writer.PrepareCommit();
IndexReader reader2 = IndexReader.Open(dir);
Assert.AreEqual(0, reader2.NumDocs());
writer.Rollback();
IndexReader reader3 = reader.Reopen();
Assert.AreEqual(0, reader.NumDocs());
Assert.AreEqual(0, reader2.NumDocs());
Assert.AreEqual(0, reader3.NumDocs());
reader.Close();
reader2.Close();
writer = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
for (int i = 0; i < 17; i++)
AddDoc(writer);
Assert.AreEqual(0, reader3.NumDocs());
reader3.Close();
reader = IndexReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs());
reader.Close();
writer.PrepareCommit();
reader = IndexReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs());
reader.Close();
writer.Commit();
reader = IndexReader.Open(dir);
Assert.AreEqual(17, reader.NumDocs());
reader.Close();
writer.Close();
dir.Close();
}示例13: Test
//.........这里部分代码省略.........
w.AddIndexes(new Directory[] { dirCopy });
}
}
else
{
if (VERBOSE)
{
Console.WriteLine("TEST: addDocument");
}
w.AddDocument(docs.NextDoc());
}
dir.RandomIOExceptionRateOnOpen = 0.0;
w.Dispose();
w = null;
// NOTE: this is O(N^2)! Only enable for temporary debugging:
//dir.setRandomIOExceptionRateOnOpen(0.0);
//TestUtil.CheckIndex(dir);
//dir.setRandomIOExceptionRateOnOpen(rate);
// Verify numDocs only increases, to catch IndexWriter
// accidentally deleting the index:
dir.RandomIOExceptionRateOnOpen = 0.0;
Assert.IsTrue(DirectoryReader.IndexExists(dir));
if (r2 == null)
{
r2 = DirectoryReader.Open(dir);
}
else
{
DirectoryReader r3 = DirectoryReader.OpenIfChanged(r2);
if (r3 != null)
{
r2.Dispose();
r2 = r3;
}
}
Assert.IsTrue(r2.NumDocs >= lastNumDocs, "before=" + lastNumDocs + " after=" + r2.NumDocs);
lastNumDocs = r2.NumDocs;
//System.out.println("numDocs=" + lastNumDocs);
dir.RandomIOExceptionRateOnOpen = rate;
any = true;
if (VERBOSE)
{
Console.WriteLine("TEST: iter=" + iter + ": success");
}
}
catch (IOException ioe)
{
if (VERBOSE)
{
Console.WriteLine("TEST: iter=" + iter + ": exception");
Console.WriteLine(ioe.ToString());
Console.Write(ioe.StackTrace);
}
if (w != null)
{
// NOTE: leave random IO exceptions enabled here,
// to verify that rollback does not try to write
// anything:
w.Rollback();
}
}
if (any && r == null && Random().NextBoolean())
{
// Make a copy of a non-empty index so we can use
// it to addIndexes later:
dir.RandomIOExceptionRateOnOpen = 0.0;
r = DirectoryReader.Open(dir);
dirCopy = NewMockFSDirectory(CreateTempDir("TestIndexWriterOutOfFileDescriptors.copy"));
HashSet<string> files = new HashSet<string>();
foreach (string file in dir.ListAll())
{
dir.Copy(dirCopy, file, file, IOContext.DEFAULT);
files.Add(file);
}
dirCopy.Sync(files);
// Have IW kiss the dir so we remove any leftover
// files ... we can easily have leftover files at
// the time we take a copy because we are holding
// open a reader:
(new IndexWriter(dirCopy, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())))).Dispose();
dirCopy.RandomIOExceptionRate = rate;
dir.RandomIOExceptionRateOnOpen = rate;
}
}
if (r2 != null)
{
r2.Dispose();
}
if (r != null)
{
r.Dispose();
dirCopy.Dispose();
}
dir.Dispose();
}示例14: DoWork
public override void DoWork()
{
IndexWriter writer1 = new IndexWriter(dir1, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
writer1.SetMaxBufferedDocs(3);
writer1.MergeFactor = 2;
((ConcurrentMergeScheduler) writer1.MergeScheduler).SetSuppressExceptions();
IndexWriter writer2 = new IndexWriter(dir2, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
// Intentionally use different params so flush/merge
// happen @ different times
writer2.SetMaxBufferedDocs(2);
writer2.MergeFactor = 3;
((ConcurrentMergeScheduler) writer2.MergeScheduler).SetSuppressExceptions();
Update(writer1);
Update(writer2);
TestTransactions.doFail = true;
try
{
lock (lock_Renamed)
{
try
{
writer1.PrepareCommit();
}
catch (System.Exception t)
{
writer1.Rollback();
writer2.Rollback();
return ;
}
try
{
writer2.PrepareCommit();
}
catch (System.Exception t)
{
writer1.Rollback();
writer2.Rollback();
return ;
}
writer1.Commit();
writer2.Commit();
}
}
finally
{
TestTransactions.doFail = false;
}
writer1.Close();
writer2.Close();
}示例15: TestCommitOnCloseForceMerge
public virtual void TestCommitOnCloseForceMerge()
{
Directory dir = NewDirectory();
// Must disable throwing exc on double-write: this
// test uses IW.rollback which easily results in
// writing to same file more than once
if (dir is MockDirectoryWrapper)
{
((MockDirectoryWrapper)dir).PreventDoubleWrite = false;
}
IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(10).SetMergePolicy(NewLogMergePolicy(10)));
for (int j = 0; j < 17; j++)
{
TestIndexWriter.AddDocWithIndex(writer, j);
}
writer.Dispose();
writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetOpenMode(OpenMode_e.APPEND));
writer.ForceMerge(1);
// Open a reader before closing (commiting) the writer:
DirectoryReader reader = DirectoryReader.Open(dir);
// Reader should see index as multi-seg at this
// point:
Assert.IsTrue(reader.Leaves.Count > 1, "Reader incorrectly sees one segment");
reader.Dispose();
// Abort the writer:
writer.Rollback();
TestIndexWriter.AssertNoUnreferencedFiles(dir, "aborted writer after forceMerge");
// Open a reader after aborting writer:
reader = DirectoryReader.Open(dir);
// Reader should still see index as multi-segment
Assert.IsTrue(reader.Leaves.Count > 1, "Reader incorrectly sees one segment");
reader.Dispose();
if (VERBOSE)
{
Console.WriteLine("TEST: do real full merge");
}
writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetOpenMode(OpenMode_e.APPEND));
writer.ForceMerge(1);
writer.Dispose();
if (VERBOSE)
{
Console.WriteLine("TEST: writer closed");
}
TestIndexWriter.AssertNoUnreferencedFiles(dir, "aborted writer after forceMerge");
// Open a reader after aborting writer:
reader = DirectoryReader.Open(dir);
// Reader should see index as one segment
Assert.AreEqual(1, reader.Leaves.Count, "Reader incorrectly sees more than one segment");
reader.Dispose();
dir.Dispose();
}