Regarding clearing gen_server state

Edward Wang <>
Fri Mar 11 15:24:50 CET 2011

FYI. This is a nice read and clarify the question for me:

"On Erlang, State and Crashes"

On Sun, Feb 20, 2011 at 4:40 AM, Edward Wang <> wrote:

> Hi,
> In Erlang, it is quite ubiquitous to use state of dynamically spawned
> gen_server to represent entities in problem domain. These gen_servers can
> trap exit signal and do housekeeping when gracefully terminating. If some of
> them crash, a monitoring process can take care of housekeeping for them.
> But, the problem is most likely the monitoring process doesn't have enough
> data to do so. No shared state, remember?
> So, I end up with two copy of the same data, one in gen_server's state, one
> in ets table. Not only I need to keep them in sync, but also it *is* shared
> data to some extent.
> How can I do it differently?
> Regards,
> Edward

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