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Re: V.6.0.2 gripes...

  • To: mathgroup at smc.vnet.net
  • Subject: [mg86665] Re: V.6.0.2 gripes...
  • From: Helen Read <hpr at together.net>
  • Date: Mon, 17 Mar 2008 00:21:57 -0500 (EST)
  • References: <fr8b56$gu8$1@smc.vnet.net> <frash5$1no$1@smc.vnet.net> <frcluo$rrv$1@smc.vnet.net> <frdft4$b0d$1@smc.vnet.net>
  • Reply-to: HPR <read at math.uvm.edu>

David Bailey wrote:
> Helen Read wrote:
>> 
>> We have been seeing the Java timeout error a lot, on machines on campus 
>> and at home. It started a few months ago, and the upgrade from 6.0.1 to 
>> 6.0.2 has not helped. If anything, I'm seeing the Java timeout more 
>> frequently than before, even on two very speedy new machines where I was 
>> rarely getting the Java error before. What happens much/most of the time 
>> now is that when you start up Mathematica and go to execute a command, 
>> Mathematica just hangs for a while. Eventually, after quite a long wait, 
>> you get the first output, together with the Java timeout error. 
>> *Usually* it's OK if you quit Mathematica and restart, or if you just 
>> close up the error window and go on.
>>
> In the absence of a definitive response from WRI, I think it would be 
> worth experimenting with a machine disconnected from the internet. I 
> don't get this problem myself, but I have written code that depended on 
> paclet information. This worked well if the machine could not access the 
> internet (once the relevant data had been downloaded once) and well if 
> the machine had a good internet connection. However with a weak 
> connection, the system would seem to start the check for more up to date 
> information, and then get stuck/crash.

It seems unrelated to internet access. We have quite good connections at 
the university, and we get the Java error there all the time. I have 
dial-up at home, and I get the Java error regardless of whether I am 
connected.

> I wonder if Mathematica is trying to update some component on startup. 
> Any internet access would probably occur via Java. In particular, have 
> you configured your Mathematica to pre-load any software?

Nope. But apparently Mathematica itself tries to load some Java stuff on 
startup, hence the timeout errors.

-- 
Helen Read
University of Vermont


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