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From "Andrew Zhang" <zhanghuang...@gmail.com>
Subject Re: FileNotFoundException during IndexWriter#commit in lucene-2.4.0
Date Fri, 21 Nov 2008 11:12:58 GMT
Thanks a lot Mike!

Your answer is really helpful. It was indeed caused by my sdcard, which
turned into read-only mode under some situation.

Thanks for your time!

On Fri, Nov 21, 2008 at 5:55 PM, Michael McCandless <
lucene@mikemccandless.com> wrote:

>
> That exception actually isn't during commit -- it's during addDocument.
>  Are you saying there was a separate thread calling commit at the same time?
>
> The error is very odd: Lucene is trying to create the file _3.fdt (open for
> "rw" as you noted), yet hit a FileNotFoundException.  Can you check that the
> index directory is actually writable by your process, and reply back with
> the "ls -l" output?
>
> The "unable to unlink" error is probably just Lucene trying to clean up on
> handling the exception.
>
> It's OK for the JVM to be kill -9'd in 2.4 as well as 2.3 (it won't corrupt
> your index).  It's OS/hardware crashes, power loss, etc, where 2.3 could
> corrupt the index but 2.4 shouldn't.
>
> Mike
>
>
> Andrew Zhang wrote:
>
>  Hi,
>>
>> I met FileNotFoundException when using lucene 2.4.0. Please see the stack
>> trace[1] below. I checked the code of lucene-2.4, found the following code
>> throws FileNotFoundException:
>>
>> file = new RandomAccessFile(path, "rw");
>>
>> I checked system log, and found a warning before the exception: unable to
>> unlink '/sdcard/.servo/.index/_3.fdt' (errno=2)
>>
>> Any hint what the problem is? Possible race condition during commit?
>>
>> My index process was killed by system somtimes, but I assume it's OK for
>> lucene-2.4.
>>
>> Thanks a lot in advance!
>>
>> [1]
>> java.io.FileNotFoundException: /sdcard/.servo/.index/_3.fdt
>>    at
>> org.apache.harmony.luni.platform.OSFileSystem.open(OSFileSystem.java:227)
>>    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:109)
>>    at
>> org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:639)
>>    at
>> org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:442)
>>    at org.apache.lucene.index.FieldsWriter.<init>(FieldsWriter.java:62)
>>    at
>> org.apache.lucene.index.StoredFieldsWriter.initFieldsWriter(StoredFieldsWriter.java:67)
>>    at
>> org.apache.lucene.index.StoredFieldsWriter.finishDocument(StoredFieldsWriter.java:141)
>>    at
>> org.apache.lucene.index.StoredFieldsWriter$PerDoc.finish(StoredFieldsWriter.java:187)
>>    at
>> org.apache.lucene.index.DocumentsWriter$WaitQueue.writeDocument(DocumentsWriter.java:1408)
>>    at
>> org.apache.lucene.index.DocumentsWriter$WaitQueue.add(DocumentsWriter.java:1427)
>>    at
>> org.apache.lucene.index.DocumentsWriter.finishDocument(DocumentsWriter.java:1062)
>>    at
>> org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:768)
>>    at
>> org.apache.lucene.index.DocumentsWriter.addDocument(DocumentsWriter.java:743)
>>    at
>> org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1902)
>>    at
>> org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1880)
>>
>>
>> --
>> Best regards,
>> Andrew Zhang
>>
>> db4o - database for Android: www.db4o.com
>> http://zhanghuangzhu.blogspot.com/
>>
>
>
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>


-- 
Best regards,
Andrew Zhang

db4o - database for Android: www.db4o.com
http://zhanghuangzhu.blogspot.com/

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