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Posted to java-user@lucene.apache.org by "Howk, Michael" <MH...@FSC.Follett.com> on 2002/02/21 22:48:36 UTC

Index Locked For Write

We just got the newest daily build (to try to fix some NullPointer errors
with "?" and "_" characters), and we're getting the same problem that Daniel
Calvo mentioned: Index Locked for Write. Here's basically what our code is
doing:
      IndexWriter writer = new IndexWriter(path, analyzer, create);
	try {
	    Document doc = new Document();            
	    doc.add(Field.Keyword("DOC_ID", "14"));
          doc.add(Field.UnStored("ANY", "mushu"));
          writer.addDocument(doc);
          writer.optimize();

          // Search the document for our keyword
          {   
          IndexReader reader = IndexReader.open(path);
          IndexSearcher searcher = new IndexSearcher(reader);
          Vector returnStuff = searcher.search("mushu");
          }
            
          // Verify that we got one record back
          assertNotNull(returnStuff);
          assertEquals(1, returnStuff.size());
      }
      finally {
          // Clean up after ourselves
          IndexReader reader = IndexReader.open(path);
          reader.delete(new Term("DOC_ID", "14"));
          reader.close();
      }

And the exception we're getting on the "reader.delete" line in the finally
clause:

java.io.IOException: Index locked for write:
Lock@C:\devtools\JBossTomcat\jboss\indexes\marc\write.lock at
sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteC
all.java:245) at
sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:220) at
sun.rmi.server.UnicastRef.invoke(UnicastRef.java:122) at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker_Stub.invoke(Unknown
Source) at
org.jboss.ejb.plugins.jrmp.interfaces.GenericProxy.invokeContainer(GenericPr
oxy.java:357) at
org.jboss.ejb.plugins.jrmp.interfaces.StatelessSessionProxy.invoke(Stateless
SessionProxy.java:123) at
$Proxy5.deleteDocument(Unknown Source)

Are we using the right approach? Any suggestions? Thank you.

Michael Howk

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Re: Index Locked For Write

Posted by Otis Gospodnetic <ot...@yahoo.com>.
The fix is simple:
writer.close() after writer.optimize().

Otis

--- "Howk, Michael" <MH...@FSC.Follett.com> wrote:
> We just got the newest daily build (to try to fix some NullPointer
> errors
> with "?" and "_" characters), and we're getting the same problem that
> Daniel
> Calvo mentioned: Index Locked for Write. Here's basically what our
> code is
> doing:
>       IndexWriter writer = new IndexWriter(path, analyzer, create);
> 	try {
> 	    Document doc = new Document();            
> 	    doc.add(Field.Keyword("DOC_ID", "14"));
>           doc.add(Field.UnStored("ANY", "mushu"));
>           writer.addDocument(doc);
>           writer.optimize();
> 
>           // Search the document for our keyword
>           {   
>           IndexReader reader = IndexReader.open(path);
>           IndexSearcher searcher = new IndexSearcher(reader);
>           Vector returnStuff = searcher.search("mushu");
>           }
>             
>           // Verify that we got one record back
>           assertNotNull(returnStuff);
>           assertEquals(1, returnStuff.size());
>       }
>       finally {
>           // Clean up after ourselves
>           IndexReader reader = IndexReader.open(path);
>           reader.delete(new Term("DOC_ID", "14"));
>           reader.close();
>       }
> 
> And the exception we're getting on the "reader.delete" line in the
> finally
> clause:
> 
> java.io.IOException: Index locked for write:
> Lock@C:\devtools\JBossTomcat\jboss\indexes\marc\write.lock at
>
sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteC
> all.java:245) at
>
sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:220)
> at
> sun.rmi.server.UnicastRef.invoke(UnicastRef.java:122) at
>
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker_Stub.invoke(Unknown
> Source) at
>
org.jboss.ejb.plugins.jrmp.interfaces.GenericProxy.invokeContainer(GenericPr
> oxy.java:357) at
>
org.jboss.ejb.plugins.jrmp.interfaces.StatelessSessionProxy.invoke(Stateless
> SessionProxy.java:123) at
> $Proxy5.deleteDocument(Unknown Source)
> 
> Are we using the right approach? Any suggestions? Thank you.
> 
> Michael Howk
> 
> --
> To unsubscribe, e-mail:  
> <ma...@jakarta.apache.org>
> For additional commands, e-mail:
> <ma...@jakarta.apache.org>
> 


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