Index File missing

[Kyle]

XTF List,

I am working on loading TEI content into our XTF system. The indexer
is returning the following error:

*** IOException Opening or Creating Index:
java.io.FileNotFoundException: /usr/local/XTF/apache-tomcat-6.0.20/
webapps/xtf-ebc/index/_b72c.cfs (No such file or directory)
*** Error: class java.io.FileNotFoundException
java.io.FileNotFoundException: /usr/local/XTF/apache-tomcat-6.0.20/
webapps/xtf-ebc/index/_b72c.cfs (No such file or directory)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:212)
at org.apache.lucene.store.FSIndexInput
$Descriptor.<init>(FSDirectory.java:497)
at
org.apache.lucene.store.FSIndexInput.<init>(FSDirectory.java:522)
at
org.apache.lucene.store.FSDirectory.openInput(FSDirectory.java:434)
at
org.apache.lucene.index.CompoundFileReader.<init>(CompoundFileReader.java:
63)
at
org.apache.lucene.index.SegmentReader.initialize(SegmentReader.java:
154)
at
org.apache.lucene.index.SegmentReader.get(SegmentReader.java:140)
at
org.apache.lucene.index.SegmentReader.get(SegmentReader.java:121)
at org.apache.lucene.index.IndexReader
$1.doBody(IndexReader.java:166)
at org.apache.lucene.index.SegmentInfos
$FindSegmentsFile.run(SegmentInfos.java:579)
at org.apache.lucene.index.IndexReader.open(IndexReader.java:
147)
at org.apache.lucene.index.IndexReader.open(IndexReader.java:
131)
at
org.cdlib.xtf.textIndexer.XMLTextProcessor.openIdxForReading(XMLTextProcessor.java:
3679)
at
org.cdlib.xtf.textIndexer.XMLTextProcessor.open(XMLTextProcessor.java:
518)
at
org.cdlib.xtf.textIndexer.SrcTreeProcessor.open(SrcTreeProcessor.java:
150)
at org.cdlib.xtf.textIndexer.TextIndexer.main(TextIndexer.java:
328)

It looks like lucene is looking for /usr/local/XTF/apache-
tomcat-6.0.20/webapps/xtf-ebc/index/_b72c.cfs and after checking, that
file is not there. Does any one know what _b72c.cfs does within
Lucene? I did not willfully or knowingly do anything that would delete
the file in question. The last action that I took before running this
index was running another index, which was successful. Any ideas why
this file might have been removed or steps I could take to resolve
this issue? Thanks.