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From "Fedor Taiakine (JIRA)" <>
Subject [Lucene.Net] [jira] [Commented] (LUCENENET-421) Segment files ocasionaly disappearing making index corrupted
Date Tue, 31 May 2011 15:22:47 GMT


Fedor Taiakine commented on LUCENENET-421:

Hi Digy, thank you for your response!
The question about the antivirus was first that came to my mind and our client's IT guy said
that there is no antivirus on the server. Normally there is only one instance of the indexer
doing incremental indexing, and we don't use explicit unlocking. Another note: this started
to happen with virtually same setup only after we moved to much faster server from Win 2003
IIS 6, where it never happened, to Win 2008 E2 IIS 7. 
Any other ideas in respect of above info?
We will try to validate that there is nothing accessing these files in write mode...

> Segment files ocasionaly disappearing making index corrupted
> ------------------------------------------------------------
>                 Key: LUCENENET-421
>                 URL:
>             Project: Lucene.Net
>          Issue Type: Bug
>          Components: Lucene.Net Core
>    Affects Versions: Lucene.Net 2.9.2
>         Environment: Media Chase ECF50 in the online toy store, IIS
7 under Win 2008 R2, index on RAID 1
>            Reporter: Fedor Taiakin
> IIS 7 under Win 2008 R2, index located on RAID 1
> The only operations Add Document and Delete Document, optimize = false.
> Ocasionally the segment files disappear, corrupting index. No other exceptions prior
to inability to open index:
> 'C:\Projects\MMT\ECF50\main\src\PublicLayer\SearchIndex\eCommerceFramework\CatalogEntryIndexer\_b6k.cfs'."
---> System.IO.FileNotFoundException: Could not find file 'C:\Projects\MMT\ECF50\main\src\PublicLayer\SearchIndex\eCommerceFramework\CatalogEntryIndexer\_b6k.cfs'.
> File name: 'C:\Projects\MMT\ECF50\main\src\PublicLayer\SearchIndex\eCommerceFramework\CatalogEntryIndexer\_b6k.cfs'
>    at Lucene.Net.Index.SegmentInfos.FindSegmentsFile.Run()
>    at Lucene.Net.Index.IndexReader.Open(Directory directory)

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