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From "Kevin Senechal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-7582) NIOFSDirectory sometime doesn't work on windows
Date Tue, 06 Dec 2016 13:55:58 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-7582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15725549#comment-15725549
] 

Kevin Senechal commented on LUCENE-7582:
----------------------------------------

Thank you for your answers.

Considering [~mikemccand] answer, I'll rename this issue to point to the right problem. I'll
also share the link of this issue to the modeshape team, which has implemented the lucene-modeshape
connector and keep you in touch.

Thank you

> NIOFSDirectory sometime doesn't work on windows
> -----------------------------------------------
>
>                 Key: LUCENE-7582
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7582
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: core/store
>    Affects Versions: 5.3.1
>         Environment: Windows 10, 32 bits JVM
>            Reporter: Kevin Senechal
>
> Hi!
> I've an error using lucene on windows. I already post a question on modeshape forum (https://developer.jboss.org/thread/273070)
and it looks that NIOFSDirectory is not working well on windows as described in the java documentation
of this class.
> {quote}NOTE: NIOFSDirectory is not recommended on Windows because of a bug in how FileChannel.read
is implemented in Sun's JRE. Inside of the implementation the position is apparently synchronized.
See here for details.{quote}
> After reading the linked java issue (http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6265734),
it seems that there is a workaround to solve it, use an AsynchronousFileChannel.
> Is it a choice that has been made to not use AsynchronousFileChannel or will it be a
good fix?
> You'll find the complete stacktrace below:
> {code:java}
> Caused by: org.modeshape.jcr.index.lucene.LuceneIndexException: Cannot commit index writer
 
>   at org.modeshape.jcr.index.lucene.LuceneIndex.commit(LuceneIndex.java:155) ~[dsdk-launcher.jar:na]
 
>   at org.modeshape.jcr.spi.index.provider.IndexChangeAdapter.completeWorkspaceChanges(IndexChangeAdapter.java:104)
~[dsdk-launcher.jar:na]  
>   at org.modeshape.jcr.cache.change.ChangeSetAdapter.notify(ChangeSetAdapter.java:157)
~[dsdk-launcher.jar:na]  
>   at org.modeshape.jcr.spi.index.provider.IndexProvider$AtomicIndex.notify(IndexProvider.java:1493)
~[dsdk-launcher.jar:na]  
>   at org.modeshape.jcr.bus.RepositoryChangeBus.notify(RepositoryChangeBus.java:190) ~[dsdk-launcher.jar:na]
 
>   at org.modeshape.jcr.cache.document.WorkspaceCache.changed(WorkspaceCache.java:333)
~[dsdk-launcher.jar:na]  
>   at org.modeshape.jcr.txn.SynchronizedTransactions.updateCache(SynchronizedTransactions.java:223)
~[dsdk-launcher.jar:na]  
>   at org.modeshape.jcr.cache.document.WritableSessionCache.save(WritableSessionCache.java:751)
~[dsdk-launcher.jar:na]  
>   at org.modeshape.jcr.JcrSession.save(JcrSession.java:1171) ~[dsdk-launcher.jar:na]
 
>   ... 19 common frames omitted  
> Caused by: java.nio.file.FileSystemException: C:\Users\Christopher\Infiltrea3CLOUDTEST8\christopher@dooapp.com\indexes\default\nodesByPath\_dc_Lucene50_0.doc:
The process cannot access the file because it is being used by another process.  
>   at sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:86) ~[na:1.8.0_92]
 
>   at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97) ~[na:1.8.0_92]
 
>   at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:102) ~[na:1.8.0_92]
 
>   at sun.nio.fs.WindowsFileSystemProvider.newFileChannel(WindowsFileSystemProvider.java:115)
~[na:1.8.0_92]  
>   at java.nio.channels.FileChannel.open(FileChannel.java:287) ~[na:1.8.0_92]  
>   at java.nio.channels.FileChannel.open(FileChannel.java:335) ~[na:1.8.0_92]  
>   at org.apache.lucene.util.IOUtils.fsync(IOUtils.java:393) ~[dsdk-launcher.jar:na] 

>   at org.apache.lucene.store.FSDirectory.fsync(FSDirectory.java:281) ~[dsdk-launcher.jar:na]
 
>   at org.apache.lucene.store.FSDirectory.sync(FSDirectory.java:226) ~[dsdk-launcher.jar:na]
 
>   at org.apache.lucene.store.LockValidatingDirectoryWrapper.sync(LockValidatingDirectoryWrapper.java:62)
~[dsdk-launcher.jar:na]  
>   at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4456) ~[dsdk-launcher.jar:na]
 
>   at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2874)
~[dsdk-launcher.jar:na]  
>   at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2977) ~[dsdk-launcher.jar:na]
 
>   at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2944) ~[dsdk-launcher.jar:na]
 
>   at org.modeshape.jcr.index.lucene.LuceneIndex.commit(LuceneIndex.java:152) ~[dsdk-launcher.jar:na]

> {code}
> Thank you in advance for your help



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