# [IPython-User] heart disease?

Wed Mar 21 13:44:31 CDT 2012

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
> _______________________________________________
> IPython-User mailing list
> IPython-User@scipy.org
> http://mail.scipy.org/mailman/listinfo/ipython-user
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.scipy.org/pipermail/ipython-user/attachments/20120321/8dbe3bb4/attachment.html