From: "Lever, Charles" <Charles.Lever@netapp.com>
Subject: RE: EJUKEBOX and Java
Date: Wed, 3 Apr 2002 13:39:42 -0800
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Cc: nfs@lists.sourceforge.net, "Kent, Ian I." <Ian.Kent@woodside.com.au>
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To: "'Brian Tinsley'" <btinsley@emageon.com>
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this could appear because your Java threads are emulated
entirely in user space (green threads?).  if one of the
threads goes into the kernel via a system call and doesn't
return, then your entire JVM is hung.

just a thought.

> -----Original Message-----
> From: Brian Tinsley [mailto:btinsley@emageon.com]
> Sent: Tuesday, April 02, 2002 7:39 PM
> To: Kent, Ian I.
> Cc: nfs@lists.sourceforge.net
> Subject: Re: [NFS] EJUKEBOX and Java
> 
> 
> Understood, but when the EJUKEBOX error is encountered by our 
> application, the fact that RPC blocks signals (via rpc_clnt_sigmask) 
> during this sleep seems to cause every thread in the Java VM to 
> "deadlock" (we can even see the garbage collector stop) until data 
> starts to stream back from the NFS server. This is our 
> current working 
> theory anyway.
> 
> 
> Kent, Ian I. wrote:
> 
> >The NFSv3 RFC specifies the client behaviour you are seeing 
> for this server return.
> >
> >It's not a deadlock, the client sleeps, then retries.
> >
> 
> 
> 
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