// @Absurd @Ignore takes ~20GB-30GB of space and 10 minutes.
// with some codecs needs more heap space as well.
@Ignore("Very slow. Enable manually by removing @Ignore.")
public void test() throws Exception {
BaseDirectoryWrapper dir = newFSDirectory(_TestUtil.getTempDir("2BPostingsBytes1"));
if (dir instanceof MockDirectoryWrapper) {
((MockDirectoryWrapper)dir).setThrottling(MockDirectoryWrapper.Throttling.NEVER);
}
IndexWriter w = new IndexWriter(dir,
new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMaxBufferedDocs(IndexWriterConfig.DISABLE_AUTO_FLUSH)
.setRAMBufferSizeMB(256.0)
.setMergeScheduler(new ConcurrentMergeScheduler())
.setMergePolicy(newLogMergePolicy(false, 10))
.setOpenMode(IndexWriterConfig.OpenMode.CREATE));
MergePolicy mp = w.getConfig().getMergePolicy();
if (mp instanceof LogByteSizeMergePolicy) {
// 1 petabyte:
((LogByteSizeMergePolicy) mp).setMaxMergeMB(1024*1024*1024);
}
Document doc = new Document();
FieldType ft = new FieldType(TextField.TYPE_NOT_STORED);
ft.setIndexOptions(IndexOptions.DOCS_AND_FREQS);
ft.setOmitNorms(true);
MyTokenStream tokenStream = new MyTokenStream();
Field field = new Field("field", tokenStream, ft);
doc.add(field);
final int numDocs = 1000;
for (int i = 0; i < numDocs; i++) {
if (i % 2 == 1) { // trick blockPF's little optimization
tokenStream.n = 65536;
} else {
tokenStream.n = 65537;
}
w.addDocument(doc);
}
w.forceMerge(1);
w.close();
DirectoryReader oneThousand = DirectoryReader.open(dir);
IndexReader subReaders[] = new IndexReader[1000];
Arrays.fill(subReaders, oneThousand);
MultiReader mr = new MultiReader(subReaders);
BaseDirectoryWrapper dir2 = newFSDirectory(_TestUtil.getTempDir("2BPostingsBytes2"));
if (dir2 instanceof MockDirectoryWrapper) {
((MockDirectoryWrapper)dir2).setThrottling(MockDirectoryWrapper.Throttling.NEVER);
}
IndexWriter w2 = new IndexWriter(dir2,
new IndexWriterConfig(TEST_VERSION_CURRENT, null));
w2.addIndexes(mr);
w2.forceMerge(1);
w2.close();
oneThousand.close();
DirectoryReader oneMillion = DirectoryReader.open(dir2);
subReaders = new IndexReader[2000];
Arrays.fill(subReaders, oneMillion);
mr = new MultiReader(subReaders);
BaseDirectoryWrapper dir3 = newFSDirectory(_TestUtil.getTempDir("2BPostingsBytes3"));
if (dir3 instanceof MockDirectoryWrapper) {
((MockDirectoryWrapper)dir3).setThrottling(MockDirectoryWrapper.Throttling.NEVER);
}
IndexWriter w3 = new IndexWriter(dir3,
new IndexWriterConfig(TEST_VERSION_CURRENT, null));
w3.addIndexes(mr);
w3.forceMerge(1);
w3.close();
oneMillion.close();
dir.close();
dir2.close();
dir3.close();
}