Hi Michael
Sorry for the late reply. As you guessed, it missed my
attention.
Michael McCandless wrote:
Hi,
Can you describe what led up to this?
My application indexes emails. In this particular instance, I
had reindexed all emails from their original sources. The
error occurred while I was using a search to search through
the index.
Were there any exceptions when adding documents to the index?
I had a look through all my application debug logs and there
were no exceptions outputted.
Was the index newly created with 2.3.1 or created on 2.3.0
or 2.2?
This index was created by v2.3.1
What options are you using in your IndexWriter?
See source code below:
public void indexMessage(Email email) throws
MessageSearchException {
Volume volume = email.getEmailId().getVolume();
VolumeIndex volumeIndex = volumeIndexes.get(volume);
if (volumeIndex!=null) {
volumeIndex.indexMessage(email);
} else {
volumeIndex = new VolumeIndex(volume);
volumeIndex.indexMessage(email);
volumeIndexes.put(volume,volumeIndex);
}
}
public class VolumeIndex {
IndexWriter writer;
Volume volume;
Timer closeIndexTimer = new Timer();
AccessStatus volumeOpened = AccessStatus.CLOSED;
Object indexLock = new Object();
public synchronized AccessStatus
getAccessStatus() { return volumeOpened;}
public synchronized void setAccessStatus
(AccessStatus volumeOpened) {
this.volumeOpened = volumeOpened;
}
public VolumeIndex(Volume volume) {
this.volume = volume;
closeIndexTimer.scheduleAtFixedRate(new
TimerTask() {
public void run() {
closeIndex(writer);
}
}, indexOpenTime, indexOpenTime);
}
protected void openIndex() throws
MessageSearchException {
synchronized(indexLock) {
if (getAccessStatus()
==AccessStatus.CLOSED) {
logger.debug("openIndex() index
will be opened. it is currently closed.");
openIndex(false);
setAccessStatus(AccessStatus.OPEN);
} else
logger.debug("openIndex() did not
bother opening index. it is already open.");
}
}
protected void openIndex(boolean
retry) throws MessageSearchException {
if (volume == null)
throw new MessageSearchException
("assertion failure: null volume",logger);
logger.debug("opening index for write
{"+volume+"}");
prepareIndex(volume);
Index activeIndex = volume.getActiveIndex();
logger.debug("opening search index for
write {indexpath='"+activeIndex.getPath()+"'}");
try {
writer = new IndexWriter
(activeIndex.getPath(), analyzer);
} catch (IOException io)
{
if (!retry) {
// most obvious reason for error
is that there is a lock on the index, due hard shutdown
// resolution delete the lock, and
try again
logger.warn("failed to open search
index for write. possible write lock due to hard system
shutdown.",io);
logger.info("attempting recovery.
deleting index lock file and retrying..");
File lockFile = new File
(activeIndex.getPath()+File.separatorChar + "write.lock");
lockFile.delete();
try {
openIndex(true);
} catch (MessageSearchException
mse) {
throw mse;
}
}
throw new MessageSearchException
("failed to open/ index writer
{location='"+activeIndex.getPath()+"'}",io,logger);
}
}
public void prepareIndex(Volume volume) throws
MessageSearchException {
if (volume==null)
throw new MessageSearchException
("assertion failure: null volume",logger);
if (volume.getIndexPath
().startsWith("rmi://"))
return;
File indexDir = new
File(volume.getIndexPath());
if (!indexDir.exists()) {
logger.info("index directory does not
exist. will proceed with creation {location='" +
volume.getIndexPath() + "'}");
boolean success = indexDir.mkdir();
if (!success)
throw new MessageSearchException
("failed to create index directory {location='" +
volume.getIndexPath() + "'}",logger);
logger.info("index directory successfully
created {location='" + volume.getIndexPath() + "'}");
}
}
public void indexMessage(Email
message) throws MessageSearchException {
long s = (new Date()).getTime();
if (message == null)
throw new MessageSearchException
("assertion failure: null message",logger);
logger.debug("indexing message {"+message+"}");
Document doc = new Document();
try {
writeMessageToDocument
(message,doc); String language = doc.get
("lang");
if (language==null)
language = getIndexLanguage();
synchronized (indexLock) {
openIndex();
writer.addDocument
(doc,AnalyzerFactory.getAnalyzer
(language,AnalyzerFactory.Operation.INDEX));
}
logger.debug("message indexed successfully
{"+message+",language='"+language+"'}");
} catch (MessagingException me)
{
throw new MessageSearchException("failed to
decode message during indexing",me,logger);
} catch (IOException me) {
throw new MessageSearchException("failed
to index message {"+message+"}",me,logger);
} catch (ExtractionException ee)
{
throw new MessageSearchException("failed to
decode attachments in message {"+message+"}",ee,logger);
} catch (Exception e) {
throw new MessageSearchException("failed
to index message",e,logger);
}
logger.debug("indexing message end {"+message
+"}");
long e = (new Date()).getTime();
logger.debug("indexing time {time='"+(e-s)+"'}");
}
protected void closeIndex
(IndexWriter writer) {
synchronized(indexLock) {
if
(getAccessStatus()==AccessStatus.CLOSED)
return;
try {
if (writer!=null)
writer.close();
try { Thread.sleep(50); }
catch (Exception e) {}
} catch (Exception io) {}
setAccessStatus(AccessStatus.CLOSED);
}
}
protected void finalize() throws
Throwable {
logger.debug("volumeindex class is shutting
down");
try {
closeIndexTimer.cancel();
} finally {
super.finalize();
}
}
}
Is it easy to reproduce?
Its difficult to reproduce since the problem seems
intermittant..
If so, can you call setInfoStream on your IndexWriter when
creating this index and post the resulting output?
I'll try this but I cannot guarantee anything. Do you see
anything obvious from the above?
Mike
Jamie wrote:
Hi There
I am getting the following error while searching a given
index:
java.io.FileNotFoundException: /usr/local/index/_0.fdt (No
such file or directory)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(Unknown Source)
at org.apache.lucene.store.FSDirectory$FSIndexInput
$Descriptor.<init>(FSDirectory.java:506)
at org.apache.lucene.store.FSDirectory
$FSIndexInput.<init>(FSDirectory.java:536)
at org.apache.lucene.store.FSDirectory.openInput
(FSDirectory.java:445)
at org.apache.lucene.index.FieldsReader.<init>
(FieldsReader.java:75)
at org.apache.lucene.index.SegmentReader.initialize
(SegmentReader.java:308)
at org.apache.lucene.index.SegmentReader.get
(SegmentReader.java:262)
at org.apache.lucene.index.SegmentReader.get
(SegmentReader.java:197)
at org.apache.lucene.index.MultiSegmentReader.<init>
(MultiSegmentReader.java:55)
at org.apache.lucene.index.DirectoryIndexReader
$1.doBody(DirectoryIndexReader.java:75)
at org.apache.lucene.index.SegmentInfos
$FindSegmentsFile.run(SegmentInfos.java:636)
at org.apache.lucene.index.DirectoryIndexReader.open
(DirectoryIndexReader.java:63)
at org.apache.lucene.index.IndexReader.open
(IndexReader.java:209)
at org.apache.lucene.index.IndexReader.open
(IndexReader.java:173)
at org.apache.lucene.search.IndexSearcher.<init>
(IndexSearcher.java:48)
My software used to work perfectly under earlier versions
of Lucene. Since I upgraded to 2.3.1, this problem has arisen.
I seriously worried my customer's indexes will be
corrupted. Lucene expects to find a file that does not exist.
Any ideas on what might be happening and how to rectify this?
Jamie
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