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https://issues.apache.org/jira/browse/LUCENENET-416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Digy closed LUCENENET-416.
--------------------------
Resolution: Not A Problem
Fix Version/s: Lucene.Net 2.9.4
Fixed in 2.9.4 & 2.9.4g
DIGY
> IndexWriter.Init may orphan its write lock in case of exception
> ---------------------------------------------------------------
>
> Key: LUCENENET-416
> URL: https://issues.apache.org/jira/browse/LUCENENET-416
> Project: Lucene.Net
> Issue Type: Bug
> Components: Lucene.Net Core
> Affects Versions: Lucene.Net 2.9.2
> Environment: .NET 4
> Reporter: Håkan Lindqvist
> Fix For: Lucene.Net 2.9.4
>
>
> In IndexWriter.Init, if an exception other than IOException is thrown after
> the write lock has been acquired, the lock is not released. (See
> Index\IndexWriter.cs:1922 for a starting point.)
> Specifically, the exception we have seen occuring is
> UnauthorizedAccessException, eg "Access to the path 'C:\foo\bar\segments.gen'
> is denied".
> Stack trace from the UnauthorizedAccessException as mentioned above:
> at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
> at System.IO.FileStream.Init(String path, FileMode mode, FileAccess
> access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize,
> FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean
> bFromProxy, Boolean useLongPath)
> at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess
> access, FileShare share)
> at
> Lucene.Net.Store.SimpleFSDirectory.SimpleFSIndexInput.Descriptor..ctor(FileInfo
> file, FileAccess mode)
> at Lucene.Net.Store.SimpleFSDirectory.OpenInput(String name, Int32
> bufferSize)
> at Lucene.Net.Store.FSDirectory.OpenInput(String name)
> at Lucene.Net.Index.SegmentInfos.FindSegmentsFile.Run(IndexCommit commit)
> at Lucene.Net.Index.SegmentInfos.Read(Directory directory)
> at Lucene.Net.Index.IndexWriter.Init(Directory d, Analyzer a, Boolean
> create, Boolean closeDir, IndexDeletionPolicy deletionPolicy, Boolean
> autoCommit, Int32 maxFieldLength, IndexingChain indexingChain, IndexCommit
> commit)
> at Lucene.Net.Index.IndexWriter..ctor(Directory d, Analyzer a, Boolean
> create, MaxFieldLength mfl)
> I do not know under what circumstances that initial exception occurred but
> after this has happened all subsequent attempts at accessing the index will
> fail.
> It seems that changing the catch statement to release the writelock
> regardless of exception type should solve this
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