Anyone,
I am trying to evaluate Lucene for use in our company. I tried the simple
test below. Before it finished creating the index, I got the exception
exception below. Examining the directory where the index was created, there
were more than 10,000 files created. The error I got was, not surprisingly,
too many files open. What have I done wrong here? Should the directory
contain a single file for each document indexed? Is there a way to limit
this?
James
static public void createLuceneIndex()
{
try
{
IndexWriter iw = new IndexWriter("c:\\temp\\lutest", new
StandardAnalyzer(), true);
for (int i = 0; i < 100000; i++)
{
Document df = new Document();
for (int j = 0; j < 3; j++)
{
Field f = new Field("FIELD_" + (i + 1),
Integer.toString(i), true, true, true);
df.add(f);
}
iw.addDocument(df);
System.out.print('.');
}
}
catch(Throwable t)
{
t.printStackTrace();
}
}
java.io.FileNotFoundException: C:\temp\lutest\_2kk.f27 (Too many
open files)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:98)
at
java.io.RandomAccessFile.<init>(RandomAccessFile.java:143)
at
org.apache.lucene.store.FSInputStream$Descriptor.<init>(FSDirectory.java:254
)
at
org.apache.lucene.store.FSInputStream.<init>(FSDirectory.java:262)
at
org.apache.lucene.store.FSDirectory.openFile(FSDirectory.java:211)
at
org.apache.lucene.index.SegmentReader.openNorms(SegmentReader.java:259)
at
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:114)
at
org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:304)
at
org.apache.lucene.index.IndexWriter.maybeMergeSegments(IndexWriter.java:283)
at
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:185)
at
ch.abacus.lib.db.net.test.TestMain.createLuceneIndex(TestMain.java:147)
at ch.abacus.lib.db.net.test.TestMain.main(TestMain.java:61)
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