[jcifs] SmbFile.listFiles() on own server takes a long time

[Kid Kalanon]

> > the output looks like (the actual names have been removed to protect the
> > innocent):
> >
> > smb://host1 listFiles() took 0 milliseconds
>
>Wow, that's pretty fast. Urr, a little too fast actually.
>

Yeah, I forgot to mention that all these listFiles calls would have caused 
SmbAuthException because I didn't set and login stuff.  But the point I 
wanted to make was name lookup failure.

> > smb://host2 listFiles() took 47 milliseconds
> > smb://host3 listFiles() took 0 milliseconds
> > smb://host4 listFiles() took 6000 milliseconds
>
>This is a name service lookup timeout. If you ex.printStackTrace()
>you'll see that it's failing to lookup host4.
>

Yes, it did time out but it wouldn't have thrown an exception.  It would go 
on to the next thing in the resolve order - the default was RESOLVER_DNS and 
the call to InetAddress.getByName was successful.  So the call to listFiles 
was actually successful but it took a long time.

> > smb://host5 listFiles() took 0 milliseconds
> > smb://host6 listFiles() took 15 milliseconds
> >
> > I am on a LAN with usually 5 to 6 computers running either Windows 2000 
>or
> > Windows NT and all on the same workgroup.  There are no Linux or Unix 
>boxes
> > on the LAN.  As you can see, host4 is the culprit and that's the 
>computer I
> > just run the above code on.
>
>This sounds related to the WINs resolution problem just discussed. In
>this case however I think you should be able to broadcast a name service
>lookup to yourself. Weird. Can you send me a -Dlog=ALL trace of that?
>

Yes, I just read that after I sent that out :)  like the host doesn't know 
it's own IP, etc.   But I don't think I have a WINS (server or service) 
running anywhere on the network.

The log was slightly long for the last bit of code.  I've attached the log 
for the following code:

  public static void main(String[] argv) throws Exception
  {
    SmbFile workgroup = new SmbFile("smb://p4-2000");
    SmbFile[] servers = workgroup.listFiles();
  }

My host name is actually p4-2000.  I hope the attachment gets through ok, 
would plain text be better?


Kid.

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