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Subject: RE: How to restore corrupted index
Date: Thu, 16 Oct 2008 17:01:24 +0530
Message-ID: 
 <0CD49D04A7B5534CA56257ADD9719EF703751240@indiaserv01.asite.asitehq.com>
In-Reply-To: <0B7F1A83-825C-406B-AAE6-23028E777DC0@mikemccandless.com>
Thread-Topic: How to restore corrupted index
Thread-Index: Ackf5H2CRHH/h77eT8qZFgTxwBHSpQPnboew
From: "Chaula Ganatra" <cganatra@asite.com>
To: <java-user@lucene.apache.org>

Hi,

I am again getting the following error while optimization.


java.io.FileNotFoundException: \\machine01\indexes\_w5.cfs (The system
cannot find the file specified)
16:20:57,533 INFO  [STDOUT] : 140 	at
java.io.RandomAccessFile.open(Native Method)
16:20:57,533 INFO  [STDOUT] : 140 	at
java.io.RandomAccessFile.<init>(Unknown Source)
16:20:57,533 INFO  [STDOUT] : 140 	at
org.apache.lucene.store.FSDirectory$FSIndexInput$Descriptor.<init>(FSDir
ectory.java:506)
16:20:57,533 INFO  [STDOUT] : 140 	at
org.apache.lucene.store.FSDirectory$FSIndexInput.<init>(FSDirectory.java
:536)
16:20:57,565 INFO  [STDOUT] : 140 	at
org.apache.lucene.store.FSDirectory.openInput(FSDirectory.java:445)
16:20:57,565 INFO  [STDOUT] : 140 	at
org.apache.lucene.index.CompoundFileReader.<init>(CompoundFileReader.jav
a:70)
16:20:57,565 INFO  [STDOUT] : 140 	at
org.apache.lucene.index.SegmentReader.initialize(SegmentReader.java:181)
16:20:57,565 INFO  [STDOUT] : 140 	at
org.apache.lucene.index.SegmentReader.get(SegmentReader.java:167)
16:20:57,565 INFO  [STDOUT] : 140 	at
org.apache.lucene.index.SegmentReader.get(SegmentReader.java:139)
16:20:57,565 INFO  [STDOUT] : 140 	at
org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:1867)
16:20:57,565 INFO  [STDOUT] : 140 	at
org.apache.lucene.index.IndexWriter.optimize(IndexWriter.java:1231)


If I try to optimize it again then also getting the same error.

Can anyone please help me out? It is occurring on live environment.


Regards,
Chaula

-----Original Message-----
From: Michael McCandless [mailto:lucene@mikemccandless.com]=20
Sent: 26 September, 2008 8:00 PM
To: java-user@lucene.apache.org
Subject: Re: How to restore corrupted index


It's perfectly fine to have a reader open on an index, while an =20
IndexWriter runs optimize.

Which version of Lucene are you using?  And which OS & filesystem?

Mike

Chaula Ganatra wrote:

> It was the Reader on same index, which I did not close so gave =20
> exception
> in writer.optimise()
>
> Chaula
>
> -----Original Message-----
> From: Michael McCandless [mailto:lucene@mikemccandless.com]
> Sent: 26 September, 2008 7:17 PM
> To: java-user@lucene.apache.org
> Subject: Re: How to restore corrupted index
>
>
> Can you post the full stack trace in both cases?
>
> Mike
>
> Chaula Ganatra wrote:
>
>> I found one case when such multiple files are remained, when we call
>> writer.optimise() it throws exception and multiple files remained in
>> index dir.
>>
>> After such multiple files, when we add document in index by calling
>> writer.addDocument it throws java.lang.NegativeArraySizeException
>>
>> Regards,
>> Chaula
>>
>> -----Original Message-----
>> From: Grant Ingersoll [mailto:gsingers@apache.org]
>> Sent: 26 September, 2008 6:02 PM
>> To: java-user@lucene.apache.org
>> Subject: Re: How to restore corrupted index
>>
>> There is the CheckIndex tool included in the distribution for
>> checking/
>> fixing bad indexes, but it can't solve everything.
>>
>> The bigger question is why it is happening to begin with.  Can you
>> describe your indexing process?  How do you know the index is =20
>> actually
>> corrupted?  Are you seeing exceptions when opening it?
>>
>> -Grant
>> On Sep 26, 2008, at 6:49 AM, Chaula Ganatra wrote:
>>
>>> We have an application in which index will be updated frequently.
>>>
>>> During development time, found that index files gets corrupted, i.e.
>>> more than one  cfs files,some other extension files e.g. frq, fnm,
>>> nrm
>>>
>>> Remains there in index directory.
>>>
>>> Is there any way that such issue does not occur at all or if it
>>> happens
>>> we can recover the index data again?
>>>
>>> It would be a great help, if some one can.
>>>
>>>
>>>
>>>
>>>
>>> Regards,
>>>
>>> Chaula
>>>
>>>
>>>
>>>
>>>
>>
>> --------------------------
>> Grant Ingersoll
>> http://www.lucidimagination.com
>>
>> Lucene Helpful Hints:
>> http://wiki.apache.org/lucene-java/BasicsOfPerformance
>> http://wiki.apache.org/lucene-java/LuceneFAQ
>>
>>
>>
>>
>>
>>
>>
>>
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>
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