Hi,
This email is about the free public online Sage notebook server:
https://www.sagenb.org
I think I just fixed some scalability issues that were responsible for
the online free
Sage notebook server feel vastly slower than it should have. Let me know what
your experience is like with it now. I also made it so the notebook doesn't
require a funny port, so it should work fine if you're behind some
sort of firewall
that doesn't allow connections to ports. Finally, I reduced the
number of security
warnings.
-- William
MORE DETAILS, and other changes unifying the servers:
(Ignore the rest of this unless you're interested in more details etc.)
I think it turned out that there was a huge amount of user data that
was being saved every few
seconds, so basically the notebook was spending all of its time
backing itself up. This sort
of paranoid constant backing up was really important when the notebook
actually used to crash.
Now the notebook can easily run for many weeks without crashing (in
fact, I don't know how to
crash it -- it just goes and goes). So I changed the parameters for
autosaving.
Thus if you've quit using the public notebooks in frustration because
they feel very sluggish,
please try again and let me know if they feel more robust and usable now.
Also, I would really like to go from having three separate servers to
exactly 1 server.
The only reason we ever had three servers was because the previous (pre-twisted)
version of the notebook would crash regularly, etc. The current notebook is far
more robust. It would be better to have one server. However, I have
nothing in place
for migrating existing worksheets, etc. The simplest thing to do
would be to just select
one of
https://sage.math.washington.edu:8101
https://sage.math.washington.edu:8102
https://sage.math.washington.edu:8103
to be the canonical one, make all the links point to it, and just
leave the other servers
running for people who want to directly connect to them (and tell
people about them
if they freak about their documents all being missing).
I just made 8101 the canonical one, since it is now the one most people use.
[...]
OK, I've now made it so
https://www.sagenb.org etc
*all* point to the same server.
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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