Hi, i'm new to the list, so if this falls under FAQ, please just point
me in the right direction.
We've been using Lucene.net 1.9.1 for quite a while and I wanted to
finally get us current with lucene, so i incorporated 2.9.1 into our
code. Unfortunately, 2.9.1 crashes under mono 2.4. Has anyone else
tried it on Mono? I downgraded to 2.4.0 which does work but has
problems with unclean shutdown with SimpleFSLock on windows and linux,
that NativeFSLock in 2.9.1 does not exhibit.
Before i go into the 2.9.1 issues in detail, in 2.40 is there a best
practice for cleaning up lingering locks for SimpleFSLock other than
manually looking for the lock file and clearing it out at startup?
Anyway, here are the 2.9.1 issues i came across. Being mono only
issues i don't know if this helpful, but i thought i'd see if this
rings a bell.
When no index exists yet, IndexWriter will die and completely take
down the process with this:
** ERROR:(mini.c:3624):mini_method_compile: assertion failed: (tblock-
>native_offset)
Stacktrace:
at Lucene.Net.Index.SegmentInfos.FinishCommit
(Lucene.Net.Store.Directory) <0xffffffff>
at Lucene.Net.Index.SegmentInfos.FinishCommit
(Lucene.Net.Store.Directory) <0x000e4>
at Lucene.Net.Index.SegmentInfos.Commit
(Lucene.Net.Store.Directory) <0x00024>
at Lucene.Net.Index.IndexWriter.Init
(Lucene
.Net
.Store
.Directory
,Lucene
.Net
.Analysis
.Analyzer
,bool
,bool
,Lucene
.Net
.Index.IndexDeletionPolicy,bool,int,Lucene.Net.Index.DocumentsWriter/
IndexingChain,Lucene.Net.Index.IndexCommit) <0x001a3>
at Lucene.Net.Index.IndexWriter.Init
(Lucene
.Net
.Store
.Directory
,Lucene
.Net
.Analysis
.Analyzer
,bool
,Lucene
.Net
.Index.IndexDeletionPolicy,bool,int,Lucene.Net.Index.DocumentsWriter/
IndexingChain,Lucene.Net.Index.IndexCommit) <0x00076>
at Lucene.Net.Index.IndexWriter..ctor
(Lucene
.Net
.Store
.Directory,Lucene.Net.Analysis.Analyzer,Lucene.Net.Index.IndexWriter/
MaxFieldLength) <0x001c2>
at Repro.Program.Main (string[]) <0x00089>
at (wrapper runtime-invoke)
Repro.Program.runtime_invoke_void_object (object,intptr,intptr,intptr)
<0xffffffff>
If an index already exists both IndexWriter and IndexSearcher will
throw an exception (without taking down the process this time) for
NIOFSDirectory:
Unhandled Exception: System.NullReferenceException: Object reference
not set to an instance of an object
at Lucene.Net.Store.NIOFSDirectory+NIOFSIndexInput.ReadInternal
(System.Byte[] b, Int32 offset, Int32 len) [0x00000]
at Lucene.Net.Store.BufferedIndexInput.Refill () [0x00000]
at Lucene.Net.Store.BufferedIndexInput.ReadByte () [0x00000]
at Lucene.Net.Store.IndexInput.ReadInt () [0x00000]
at Lucene.Net.Index.SegmentInfos+FindSegmentsFile.Run
(Lucene.Net.Index.IndexCommit commit) [0x00000]
at Lucene.Net.Index.DirectoryReader.Open
(Lucene.Net.Store.Directory directory, IndexDeletionPolicy
deletionPolicy, Lucene.Net.Index.IndexCommit commit, Boolean readOnly,
Int32 termInfosIndexDivisor) [0x00000]
at Lucene.Net.Index.IndexReader.Open (Lucene.Net.Store.Directory
directory, IndexDeletionPolicy deletionPolicy,
Lucene.Net.Index.IndexCommit commit, Boolean readOnly, Int32
termInfosIndexDivisor) [0x00000]
at Lucene.Net.Index.IndexReader.Open (Lucene.Net.Store.Directory
directory) [0x00000]
at Lucene.Net.Search.IndexSearcher..ctor
(Lucene.Net.Store.Directory directory) [0x00000]
at (wrapper remoting-invoke-with-check)
Lucene.Net.Search.IndexSearcher:.ctor (Lucene.Net.Store.Directory)
at Repro.Program.Main (System.String[] args) [0x00000]
I've also come across lock timeout with NativeFSLock on mono, but
can't figure out how to repro this.
cheers,
Arne Claassen
MindTouch
San Diego, CA
http://twitter.com/sdether
