[jcifs] SmbException -- Broken Pipe

[Michael B Allen]

Socket failures happen. There is logic to catch these conditions and
transparently correct. I suspect jrockit is throwing an exception JCIFS
didn't expect. Look at SmbTransport and try to identify where the code
might handle jrockit specific exceptions.

Mike

On Thu, 30 Nov 2006 14:40:17 -0700
"Abrego, Renaud" <RAbrego at azdes.gov> wrote:

> Eric,
> 
> We have multiple environments (development, QA, production).  The
> development environment is the only environment that uses Sun's JVM.
> The other two use BEA Jrockit because it is the only one supported by
> RedHat on their Enterprise distribution (we use RHEL 3 I believe, but it
> could be 2).
> 
> This problem only manifests itself in the production environment.
> Although, the production environment has many more users than the other
> environments.
> 
> --Reny
> 
> -----Original Message-----
> From: Eric Glass [mailto:eric.glass at gmail.com] 
> Sent: Thursday, November 30, 2006 2:22 PM
> To: Abrego, Renaud; jcifs at lists.samba.org
> Subject: Re: [jcifs] SmbException -- Broken Pipe
> 
> You appear to be using the BEA jrockit JVM; does the same hapen with the
> Sun JVM?
> 
> On 11/30/06, Reny Abrego <rabrego at azdes.gov> wrote:
> > Hello,
> >
> > We have been experiencing a weird broken pipe issue with jcifs-1.2.10.
> >
> > Essentially, we perform arbitrary authentication against a windows 
> > domain controller for a Java web application using the following code
> snippet:
> >
> > try {
> > 	UniAddress mydomaincontroller =
> UniAddress.getByName(domainController);
> > 	NtlmPasswordAuthentication mycreds =
> > 		new NtlmPasswordAuthentication(
> > 				defaultDomain,
> > 				username,
> > 				password );
> > 	SmbSession.logon( mydomaincontroller, mycreds ); } catch( 
> > SmbAuthException sae ) {
> > 	logger.debug("SMBAuthException Occurred: ",sae);
> > 	throw new AuthenticationFailureException(sae);
> > } catch( SmbException se ) {
> > 	logger.debug("SMBException Occurred: ",se);
> > 	throw new AuthenticationFailureException(se);
> > } catch (Exception e) {
> > 	logger.debug("General Exception Occurred: ",e);
> > 	throw new AuthenticationFailureException(e);
> > }
> >
> > This works fine for a while, usually several hours, where many people 
> > authenticate and can use the app.  However, after some seemingly 
> > random interval of time, we begin to see "Broken Pipe" exceptions.  
> > Once this occurs, authentication fails every time for everyone with 
> > the same "Broken Pipe"
> > exception until the application is restarted.
> >
> > Any help on this would be appreciated.  The following stacktrace is 
> > representative of the exceptions we receive once authentication ceases
> 
> > to work.
> >
> > 2006-11-30 09:44:08,351 DEBUG [gov.azdes.LoginManager] SMBException
> > Occurred:
> > jcifs.smb.SmbException:
> > java.net.SocketException: Broken pipe
> > 	at jrockit.net.SocketNativeIO.write(IIIZ)I(Unknown Source)
> > 	at jrockit.net.SocketNativeIO.write(III)I(Optimized Method)
> > 	at
> jrockit.io.NativeIO.write(Ljava/io/FileDescriptor;II)I(Unknown
> > Source)
> > 	at java.net.AbstractSocketImpl$2.write(II)V(Optimized Method)
> > 	at jrockit.io.NativeIOOutputStream.write([BII)V(Optimized
> Method)
> > 	at
> > jcifs.smb.SmbTransport.doSend(Ljcifs/util/transport/Request;)V
> > (SmbTransport.java:414)
> > 	at jcifs.util.transport.Transport.sendrecv
> > (Ljcifs/util/transport/Request;Ljcifs/util/transport/Response;J)V
> > (Transport.java:70)
> > 	at
> > jcifs.smb.SmbTransport.send(Ljcifs/smb/ServerMessageBlock;
> > Ljcifs/smb/ServerMessageBlock;)V(SmbTransport.java:603)
> > 	at
> > jcifs.smb.SmbSession.sessionSetup(Ljcifs/smb/ServerMessageBlock;
> > Ljcifs/smb/ServerMessageBlock;)V(SmbSession.java:277)
> > 	at
> > jcifs.smb.SmbSession.send(Ljcifs/smb/ServerMessageBlock;
> > Ljcifs/smb/ServerMessageBlock;)V(SmbSession.java:233)
> > 	at
> > jcifs.smb.SmbTree.treeConnect(Ljcifs/smb/ServerMessageBlock;
> > Ljcifs/smb/ServerMessageBlock;)V(SmbTree.java:154)
> > 	at
> > jcifs.smb.SmbSession.logon(Ljcifs/UniAddress;I
> > Ljcifs/smb/NtlmPasswordAuthentication;)V(SmbSession.java:169)
> > 	at
> > jcifs.smb.SmbSession.logon(Ljcifs/UniAddress;L
> > jcifs/smb/NtlmPasswordAuthentication;)V(SmbSession.java:162)
> > 	at
> > gov.azdes.LoginManager.loadUserWithCredentials(Ljava/lang/String;
> > Ljava/lang/String;)Lorg/acegisecurity/userdetails/UserDetails;
> > (LoginManager.java:77)
> >
> >
> > Many thanks in advance,
> >
> > -- Reny
> >
> >
> >
>   
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-- 
Michael B Allen
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http://www.ioplex.com/