[erlang-questions] How to see which processes used ets table?
Thu Feb 7 02:50:14 CET 2013
On 02/07/2013 02:31 AM, wrote:
> The only alternative I've been able to think of with the
> existing interfaces is to create a watchdog process that
> checks process_info(Target, memory) periodically, which is
> doable, and which can check for message queue growth as well.
This is probably the least insane approach.
A maximum limit on the memory used by a process could certainly prevent
processes who start using too much because of bugs, but it might also
have the inverse effect of killing legitimate processes. The chances of
this happening increase with the number of updates the code receives, as
you will most likely forget to update it.
There's only one sane approach to make sure a system works as intended
for any size of inputs over any length of time: testing. And more than
that, property based testing. If your system crashes because of memory
issues and you didn't catch it while testing, you might consider writing
some properties and feeding your application bigger chunks of data over
longer periods of time.
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