# [IPython-User] heart disease?

Comer Duncan comer.duncan@gmail....
Wed Mar 21 14:11:46 CDT 2012

Mike,

I am using pre-.13.  The only thing I have done recently is to reset
my EDITOR env to TextWrangler, which works quite well in the console.
However, it does not yet work in the notebook.    Maybe it is just a
network slowness thing...

Comer

On Wed, Mar 21, 2012 at 2:44 PM, Michael Hadmack <hadmack@gmail.com> wrote:
> I have also have some trouble with the Kernel dying repeatedly.  I'm not
> sure what the cause was but sometimes when opening a notebook I would get a
> 'kernel had died' message and after restarting the message returns within 20
> seconds.  Even shutting down the server and starting a new one did not seem
> to help but eventually the problem would just stop.  I attributed it to
> something with my machine being too slow (a 2006 Macbook).  I have not seen
> this happen once I switched from 0.12 to 0.13 though.
>
> -Mike
>
> On Wed, Mar 21, 2012 at 8:15 AM, Comer Duncan <comer.duncan@gmail.com>
> wrote:
>>
>> Hi,
>>
>> Today, I am noticing on my macbook that when I run ipython notebook
>> --profile=sympy that it takes up to a minute for chrome to light up
>> with the dashboard in a tab.  So, when I select a particular notebook
>> to run and run it, it takes a while for it to run (=> longer than
>> usual and seemingly not due to mathjax being slow).  Well I could
>> chalk that up to local issues on my machine, but have not seen that
>> until today. And finally the kernel keeps dying.  I keep restarting it
>> and this sequence goes on and on with the kernel restarted living for
>> less than a minute.  The stated output on stdout mentions the kernel
>> failed to respond to heartbeat.  Any idea as to why this may happen
>> and when?  And what if anything to do about it?
>>
>>
>> Comer
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>
>
>
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