[jcifs] Timeout waiting for response from server
Allen, Michael B (RSCH)
Michael_B_Allen at ml.com
Wed Apr 17 09:15:50 EST 2002
That "operation interrupted" message means that your application is calling interrupt() on the thread calling the
jCIFS client. This may (read will likely) break the client and you could get timeouts. Try to find what part of your
application is calling interrupt() and fix it.
> -----Original Message-----
> From: holger.doerl at web.de [SMTP:holger.doerl at web.de]
> Sent: Tuesday, April 16, 2002 7:11 PM
> To: Allen, Michael B (RSCH)
> Subject: RE: [jcifs] Timeout waiting for response from server
> thank you for your help. On my workstation I used jdk1.2.2 and I tried with 1.3 and then I had the same problem.
> On the mandrake I installed 1.2.2 and the behaviour is different to my computer. It is still the same message: Timeout waiting for response from server. But the time I've to wait is o.k.
> If I've a little bit time then I will try java2-1.4 too. I will write you if it work or not.
> bye Holger
> "Allen, Michael B (RSCH)" <Michael_B_Allen at ml.com> schrieb am 16.04.02:
> > > -----Original Message-----
> > > From: holger.doerl at web.de [SMTP:holger.doerl at web.de]
> > > Sent: Monday, April 15, 2002 7:29 PM
> > > To: Allen, Michael B (RSCH)
> > > Subject: Re: RE: [jcifs] Timeout waiting for response from server
> > >
> > > Hi,
> > >
> > > I use the newest version, I think.
> > >
> > > CLASSPATH=/home/holger/spider::/home/holger/spider/jcifs-0.6.2.jar:/home/holger/spider/jdbc7.0-1.2.jar:/home/holger/jswat/jswat-20020216.jar:/usr/lib/java/lib/tools.jar
> > >
> > That 'operation interrupted' thing is characteristic of an older flawed version of jCIFS. Are you
> > running within some kind of app server? If so and the app server is interrupting threads it may
> > seriously break the jCIFS client depending on what version of the JRE you're using.
> > > I tried another workstation with suse 7.3 (I've suse 7.2) and there is the problem too.
> > >
> > > What can I do ??
> > >
> > Holger,
> > Crawling CIFS intranets is a pretty intense operation. The jCIFS client really only just makes
> > it even practical. The libsmbclient library doesn't multiplex io AFAIK so the only real
> > alternative would be to write a Win32 crawler. In general you will have to have significant
> > knowledge of the protocol to develop a truly good SMB Crawler (try log=ALL to see what's
> > happening under the hood and what commands are timing out). I have tried (and largely
> > failed) to come up with a good algorithm that utilises threads well, doesn't collect stale data,
> > and doesn't get hung up on uncooperative hosts. The closest I have come is the T2Crawler
> > but it doesn't respect the depth parameter.
> > You might try a few properties though:
> > resolveOrder=WINS
> > responseTimeout=3000
> > soTimeout=5000
> > cachePolicy=-1
> > Not sure about the cachePolicy but anything that increases name resolution time or freeing
> > resources quickly will help a lot. You might also try and jack-up the attrExpirationPeriod but
> > at some point your data will become invalid if you cache it too long (especially depending on
> > the algorithm your using).
> > After having said that I think you might want to look at your name resolution setups like the
> > hosts file and DNS. It is strange that the code would work differently on one machine and
> > not the other. Are you binding the right interface? If not look at the laddr properties. Look at
> > the difference in JREs/JDKs on the machines.
> > Mike
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