error_logger and user memory usage
Fri May 5 14:07:07 CEST 2006
Matthias Lang wrote:
> Samuel Rivas writes:
> > The problem is that after a certain number (less than 4) of consecutive
> > failures my system runs out of memory and starts swapping. The processes
> > that seem to be eating the memory are error_logger and user; even after
> > stopping the system they use more than 100 M.
> Do things improve if you explicitly GC those processes, i.e. call
They do. I had wrongly tried erlang:garbage_collect() ...
Maybe the problem is that their inbox size increases so fast
that they can't handle/output the error reports?
> > I reckon the problem are the verbose error reports that are written in
> > the tty (large messages and large states in the crashing gen_servers).
> > An easy workaround is removing error_logger_tty_h from the error_logger
> > and living with sasl error_handler only.
> I'm not sure if this is directly related to your problem, but I had
> problems with gigantic error reports swamping my logging system with
> relatively useless information. I solved it by writing my own code
> to format error reports. The trick is that it limits the length of printouts.
Well, that's also a problem. I'm trying to solve the big one: my system
collapses before supervisors reach a reasonable restart intensity. A
custom error handler using your idea of limiting the report length may be
the solution for both of them.
More information about the erlang-questions