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From Michael McCandless <luc...@mikemccandless.com>
Subject Re: How to restore corrupted index
Date Thu, 16 Oct 2008 13:55:01 GMT

Can you post the full traceback for your exception, and describe your  
indexing process as well?

Mike

mahdi yari wrote:

> hi dears
> i have same problem
> i indexing on Ubuntu Linux Distro and i have large index (>30G) and
> mergeFactor = 10,
> my Lucene version is 2.2.0
> i think this maybe bug on Lucene 2.2.0
>
> but i get this error sometimes, not always
> thanks alot
>
>
> On Thu, Oct 16, 2008 at 3:01 PM, Chaula Ganatra <cganatra@asite.com>  
> wrote:
>
>> 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]
>> 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
>> 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
>>> 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
>>>> 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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>>>
>>>
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>>>
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>>
>>
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>>


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