my cell server keeps crashing

[Dan Drake]

Hello,

I'm finding the cell server to be pretty crashy. I have to restart it
quite often. I've attached a log of the most recent crash, but I also
see lots of MemoryError problems. (No logs for those, sadly.)

Any ideas? aleph seems to be rather reliable; any tips on how I can get
the KAIST server to work that well?

Thanks!

Dan

--
--- Dan Drake
----- http://mathsci.kaist.ac.kr/~drake
-------

[Jason Grout]

On 6/28/12 4:14 PM, Dan Drake wrote:
> Hello,
>
> I'm finding the cell server to be pretty crashy. I have to restart it
> quite often. I've attached a log of the most recent crash, but I also
> see lots of MemoryError problems. (No logs for those, sadly.)
>
> Any ideas? aleph seems to be rather reliable; any tips on how I can get
> the KAIST server to work that well?
>

Use MongoDB? It seems that your problems are related to using sqlite
(lock errors, possibly memory problems...)

Aleph is pretty reliable (we do use MongoDB)...but I also have a script
that checks it every 2 minutes and restarts if it isn't able to do a
computation in a few seconds.

Thanks,

Jason

[Jason Grout]

On 6/28/12 4:14 PM, Dan Drake wrote:

> Hello,
>
> I'm finding the cell server to be pretty crashy. I have to restart it
> quite often. I've attached a log of the most recent crash, but I also
> see lots of MemoryError problems. (No logs for those, sadly.)
>
> Any ideas? aleph seems to be rather reliable; any tips on how I can get
> the KAIST server to work that well?

I guess another tip: wait for the next release, which doesn't use the
database *nearly* as much as the current version does. See the
contrib/ipython-testing directory in the master branch (and the many
pull requests are now reviewing...)

Thanks,

Jason