I have experienced similar problems (see the "semi-infinite loop during
merging" thread - still working out the problem): the merger gets into
an infinite loop and causes my drive to be filled with temporary files
that are not deleted, until it runs out of space. Sometimes it exits
with a MergeException wrapping one of a variety of IOExceptions (e.g. a
FileNotFoundException), sometimes it just keeps on consuming all
available CPU time.
I think the "_k0z.fnm" file name indicates that a lot of segments have
already been created, as it starts iterating with _0, _1, ... I don't
want to jump to conclusions immediately, but this is consistent with a
merger gone loose.
Was your drive full as well afterwards?
Regards,
Chris
--
Martine Woudstra wrote:
Hi all,
I'm using Lucene 2.4.1. for building an ngram index. Indexing works
well until I try to open the index built so far with Luke. A
MergeException is thrown, see below. Opening an index with Luke during
indexing never caused problems with Lucene 2.3. Anyone familiar with
this problem?
Thanks in advance,
Martine van der Heijden
Exception in thread "Lucene Merge Thread #3067"
org.apache.lucene.index.MergePolicy$MergeException:
java.io.FileNotFoundException: D:\indexngram\_k0z.fnm (Het systeem kan
het opgegeven bestand niet vinden)
at
org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:309)
at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:286)
Caused by: java.io.FileNotFoundException: D:\indexngram\_k0z.fnm (Het
systeem kan het opgegeven bestand niet vinden)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:212)
at
org.apache.lucene.store.FSDirectory$FSIndexInput$Descriptor.<init>(FSDirectory.java:552)
at
org.apache.lucene.store.FSDirectory$FSIndexInput.<init>(FSDirectory.java:582)
at org.apache.lucene.store.FSDirectory.openInput(FSDirectory.java:488)
at org.apache.lucene.store.FSDirectory.openInput(FSDirectory.java:482)
at
org.apache.lucene.index.CompoundFileWriter.copyFile(CompoundFileWriter.java:221)
at
org.apache.lucene.index.CompoundFileWriter.close(CompoundFileWriter.java:184)
at
org.apache.lucene.index.SegmentMerger.createCompoundFile(SegmentMerger.java:204)
at
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4263)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3884)
at
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:205)
at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:260)
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